10 Jan
2017
10 Jan
'17
11:12 p.m.
Hello
I've used DCP-o-Matic on a Windows machine to create a DCP for a short film
I made. Worked great. I entered the short film in a film festival and got
accepted. They are asking me for a Linux compatible DCP. Do I need to
create the DCP on Linux for it to be Linux compatible?
Thanks
Joseph
11 Jan
11 Jan
1:01 a.m.
Leslie is correct that the DCP creation platform is not relevant.
But I think it is a mistake to follow the advice of submitting your work on the opposite
format of what the festival have asked for…even if they asked in an odd sort of way.
It is true that some software versions of some media servers will accept FAT32. But there
are some that don’t and the festival seems pretty specific about what they want. They do
that because there is only one formatted drive specification that all cinema systems must
use.
That is the EXT2 that Leslie mentioned.
And, make certain that if someone makes this drive for you that they make the inode size
128, since that is in the DCI and ISDCF and SMPTE specifications.
And, if the drive was originally formatted in FAT32, you’ll be limited to a 4 Gig file
size, regardless of the size of the drive. First format in exFAT, or leave it with NTSF if
that is what it was bought as.
Here is what I do.
The ISDCF document gives the following command line in a linux type system.
mkfs -t ext3 -I 128 -m 0 /dev/xddN
with xddN being the drive ‘name’, which is most often something like ‘sdb1’ – you can find
that name by the command
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
Then unmount with
sudo umount /dev/sdb1
And here are two other formatting commands that work. Myself, I prefer the last one since
it allows me to name the partition as it is being made.
sudo mke2fs -t ext3 -I 128 -L DCPs 0 /dev/sdb1 – slightly different command set
sudo mkfs.ext3 -I 128 -m 0 -L your-chosen-name-of-drive /dev/sdb1 – this one adds a disk
name (change "DiskName" to 'my_dcp_drive' or whatever name you want to
give it) while formatting and partitioning...change that 'sdb1' to the proper
partition number.
Formatting the disk is not so quick – Those Superblocks might take a few minutes to
assemble.
Follow up by giving permissions to the drive with: (755 is usually recommended, but I use
777 for myself)
sudo chmod -R 777 /media/Your_Login_USER_NAME/your-chosen-name-of-drive
You might find that you need to change ownership
sudo chown owner:owner /media/owner/your-chosen-name-of-drive
I usually put my name twice, such as 'cj:cj', then '/media/cj/ctt_dcps'
I hope this helps. I’d hate you to have a black screen after getting this far. Good luck.
Tell us how it worked out and what you ended up doing.
C J Flynn
Cinema Test Tools <http://www.cinematesttools.com/>
On Jan 10, 2017, at 15:45 000PM, Leslie Hartmier via
DCPomatic <dcpomatic(a)carlh.net> wrote:
No, the platform you use to create the DCP is not relevant. They may be wanting the
content on a EXT2 drive.
If it is small enough, you can provide it on a USB thumb drive formatted using FAT32.
(Most USB drives come formatted that way.)
Leslie
From: dcpomatic(a)carlh.net
Sent: January 10, 2017 4:28 PM
To: dcpomatic(a)carlh.net
Reply-to: jjverrico(a)gmail.com
Subject: [DCP-o-matic] DCP for Linux
Hello
I've used DCP-o-Matic on a Windows machine to create a DCP for a short film I made.
Worked great. I entered the short film in a film festival and got accepted. They are
asking me for a Linux compatible DCP. Do I need to create the DCP on Linux for it to be
Linux compatible?
Thanks
Joseph
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
3:48 a.m.
Thank for the information. I was hoping I could format a USB memory stick
to EXT2 on my Windows machine and then copy the DCP file structure onto
that EXT2 formatted USB memory stick. I don't have Linux on my Windows
machine. I don't know Linux. Is this possible?
On Tue, Jan 10, 2017 at 5:01 PM, cjflynn(a)digitaltesttools.com <
cjflynn(a)digitaltesttools.com> wrote:
Leslie is correct that the DCP creation platform is
not relevant.
But I think it is a mistake to follow the advice of submitting your work
on the opposite format of what the festival have asked for…even if they
asked in an odd sort of way.
It is true that some software versions of some media servers will accept
FAT32. But there are some that don’t and the festival seems pretty specific
about what they want. They do that because there is only one formatted
drive specification that all cinema systems must use.
That is the EXT2 that Leslie mentioned.
And, make certain that if someone makes this drive for you that they make
the inode size 128, since that is in the DCI and ISDCF and SMPTE
specifications.
And, if the drive was originally formatted in FAT32, you’ll be limited to
a 4 Gig file size, regardless of the size of the drive. First format in
exFAT, or leave it with NTSF if that is what it was bought as.
Here is what I do.
The ISDCF document gives the following command line in a linux type system.
mkfs -t ext3 -I 128 -m 0 /dev/xddN
with xddN being the drive ‘name’, which is most often something like
‘sdb1’ – you can find that name by the command
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
Then unmount with
sudo umount /dev/sdb1
And here are two other formatting commands that work. Myself, I prefer the
last one since it allows me to name the partition as it is being made.
sudo mke2fs -t ext3 -I 128 -L DCPs 0 /dev/sdb1 – slightly different
command set
sudo mkfs.ext3 -I 128 -m 0 -L your-chosen-name-of-drive /dev/sdb1 – this
one adds a disk name (change "DiskName" to 'my_dcp_drive' or whatever
name
you want to give it) while formatting and partitioning...change that 'sdb1'
to the proper partition number.
Formatting the disk is not so quick – Those Superblocks might take a few
minutes to assemble.
*Follow up by giving permissions to the drive* with: (755 is usually
recommended, but I use 777 for myself)
sudo chmod -R 777 /media/Your_Login_USER_NAME/your-chosen-name-of-drive
You might find that you need to change ownership
sudo chown owner:owner /media/owner/your-chosen-name-of-drive
I usually put my name twice, such as 'cj:cj', then '/media/cj/ctt_dcps'
I hope this helps. I’d hate you to have a black screen after getting this
far. Good luck. Tell us how it worked out and what you ended up doing.
C J Flynn
Cinema Test Tools <http://www.cinematesttools.com>
On Jan 10, 2017, at 15:45 000PM, Leslie Hartmier via DCPomatic <
dcpomatic(a)carlh.net> wrote:
No, the platform you use to create the DCP is not relevant. They may be
wanting the content on a EXT2 drive.
If it is small enough, you can provide it on a USB thumb drive formatted
using FAT32. (Most USB drives come formatted that way.)
Leslie
*From:* dcpomatic(a)carlh.net
*Sent:* January 10, 2017 4:28 PM
*To:* dcpomatic(a)carlh.net
*Reply-to:* jjverrico(a)gmail.com
*Subject:* [DCP-o-matic] DCP for Linux
Hello
I've used DCP-o-Matic on a Windows machine to create a DCP for a short
film I made. Worked great. I entered the short film in a film festival
and got accepted. They are asking me for a Linux compatible DCP. Do I
need to create the DCP on Linux for it to be Linux compatible?
Thanks
Joseph
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
6:59 a.m.
Just sent it in an NTFS formatted disk. If possible make sure that the
partition table is MBR and not GUID or something else.
Being in a windows machine is the easiest and safest. It will work without
any problem.
On Wed, Jan 11, 2017 at 1:14 AM, Leslie Hartmier via DCPomatic <
dcpomatic(a)carlh.net> wrote:
If you have no experience with it, you should get
someone else to format
the drive, and you use ext2fsd, ext2 IFS, or Paragon's EXTFS for Windows to
copy the DCP to the drive. Windows does not exactly support linux
partitions very well.
The instructions below are amazing, but they are a bit daunting if you've
never done it before.
Leslie
*From:* jjverrico(a)gmail.com
*Sent:* January 10, 2017 8:48 PM
*To:* cjflynn(a)digitaltesttools.com
*Cc:* leslieh1(a)shaw.ca; dcpomatic(a)carlh.net
*Subject:* Re: [DCP-o-matic] DCP for Linux
Thank for the information. I was hoping I could format a USB memory stick
to EXT2 on my Windows machine and then copy the DCP file structure onto
that EXT2 formatted USB memory stick. I don't have Linux on my Windows
machine. I don't know Linux. Is this possible?
On Tue, Jan 10, 2017 at 5:01 PM, cjflynn(a)digitaltesttools.com <
cjflynn(a)digitaltesttools.com> wrote:
--
http://akadcp.com/
https://www.facebook.com/akadcp
Leslie is correct that the DCP creation platform
is not relevant.
But I think it is a mistake to follow the advice of submitting your work
on the opposite format of what the festival have asked for…even if they
asked in an odd sort of way.
It is true that some software versions of some media servers will accept
FAT32. But there are some that don’t and the festival seems pretty specific
about what they want. They do that because there is only one formatted
drive specification that all cinema systems must use.
That is the EXT2 that Leslie mentioned.
And, make certain that if someone makes this drive for you that they make
the inode size 128, since that is in the DCI and ISDCF and SMPTE
specifications.
And, if the drive was originally formatted in FAT32, you’ll be limited to
a 4 Gig file size, regardless of the size of the drive. First format in
exFAT, or leave it with NTSF if that is what it was bought as.
Here is what I do.
The ISDCF document gives the following command line in a linux type
system.
mkfs -t ext3 -I 128 -m 0 /dev/xddN
with xddN being the drive ‘name’, which is most often something like
‘sdb1’ – you can find that name by the command
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
Then unmount with
sudo umount /dev/sdb1
And here are two other formatting commands that work. Myself, I prefer
the last one since it allows me to name the partition as it is being made.
sudo mke2fs -t ext3 -I 128 -L DCPs 0 /dev/sdb1 – slightly different
command set
sudo mkfs.ext3 -I 128 -m 0 -L your-chosen-name-of-drive /dev/sdb1 – this
one adds a disk name (change "DiskName" to 'my_dcp_drive' or whatever
name
you want to give it) while formatting and partitioning...change that 'sdb1'
to the proper partition number.
Formatting the disk is not so quick – Those Superblocks might take a few
minutes to assemble.
*Follow up by giving permissions to the drive* with: (755 is usually
recommended, but I use 777 for myself)
sudo chmod -R 777 /media/Your_Login_USER_NAME/your-chosen-name-of-drive
You might find that you need to change ownership
sudo chown owner:owner /media/owner/your-chosen-name-of-drive
I usually put my name twice, such as 'cj:cj', then '/media/cj/ctt_dcps'
I hope this helps. I’d hate you to have a black screen after getting this
far. Good luck. Tell us how it worked out and what you ended up doing.
C J Flynn
Cinema Test Tools <http://www.cinematesttools.com>
On Jan 10, 2017, at 15:45 000PM, Leslie Hartmier via DCPomatic <
dcpomatic(a)carlh.net> wrote:
No, the platform you use to create the DCP is not relevant. They may be
wanting the content on a EXT2 drive.
If it is small enough, you can provide it on a USB thumb drive formatted
using FAT32. (Most USB drives come formatted that way.)
Leslie
*From:* dcpomatic(a)carlh.net
*Sent:* January 10, 2017 4:28 PM
*To:* dcpomatic(a)carlh.net
*Reply-to:* jjverrico(a)gmail.com
*Subject:* [DCP-o-matic] DCP for Linux
Hello
I've used DCP-o-Matic on a Windows machine to create a DCP for a short
film I made. Worked great. I entered the short film in a film festival
and got accepted. They are asking me for a Linux compatible DCP. Do I
need to create the DCP on Linux for it to be Linux compatible?
Thanks
Joseph
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
9:33 a.m.
Manuel, hello
I understand that NTFS often works in many servers (and that if you are going to use NTSF
that best results come if it is formatted with MRB). But it doesn’t have to. As DCPs move
toward SMPTE Compliance, new server software and firmware is released more often and is
more complicated. A new update for any server could pass inspection without NTSF working.
NTSF is a proprietary format of Microsoft and some company may decide that they don’t want
to have the liability of using MS code in their system, or to pay for it or the
alternative source for the code.
Ext2 is the standard.
The professional thing to do is to follow the standard. If the originator of material
wasn’t a professional before, he is a professional now. And we as suppliers should be
professional and make certain to tell them how to step up their game from lens to lens.
Following the spec is the only way to make that happen.
Thanks Leslie. Just to round out your info. I use Paragon’s ExtFS for the Mac, and it is
very good for reading and writing. Formatting to any ext formats is straightforward if you
are going for the 256 inode size. But changing the inode to 128 is not on the list.
Actually, Paragon have sent me a command that is supposed to work, but it is completely
undocumented, and I haven’t had a chance to try it.
Is that your experience with Windows? Or does it have an easy way to write inode 128?
Thanks, and sorry for the rant Manuel.
C J
On Jan 10, 2017, at 22:59 000PM, Manuel AC via
DCPomatic <dcpomatic(a)carlh.net> wrote:
Just sent it in an NTFS formatted disk. If possible make sure that the partition table is
MBR and not GUID or something else.
Being in a windows machine is the easiest and safest. It will work without any problem.
On Wed, Jan 11, 2017 at 1:14 AM, Leslie Hartmier via DCPomatic <dcpomatic(a)carlh.net
<mailto:dcpomatic@carlh.net>> wrote:
If you have no experience with it, you should get someone else to format the drive, and
you use ext2fsd, ext2 IFS, or Paragon's EXTFS for Windows to copy the DCP to the
drive. Windows does not exactly support linux partitions very well.
The instructions below are amazing, but they are a bit daunting if you've never done
it before.
Leslie
From: jjverrico(a)gmail.com <mailto:jjverrico@gmail.com>
Sent: January 10, 2017 8:48 PM
To: cjflynn(a)digitaltesttools.com <mailto:cjflynn@digitaltesttools.com>
Cc: leslieh1(a)shaw.ca <mailto:leslieh1@shaw.ca>; dcpomatic(a)carlh.net
<mailto:dcpomatic@carlh.net>
Subject: Re: [DCP-o-matic] DCP for Linux
Thank for the information. I was hoping I could format a USB memory stick to EXT2 on my
Windows machine and then copy the DCP file structure onto that EXT2 formatted USB memory
stick. I don't have Linux on my Windows machine. I don't know Linux. Is this
possible?
On Tue, Jan 10, 2017 at 5:01 PM, cjflynn(a)digitaltesttools.com
<mailto:cjflynn@digitaltesttools.com> <cjflynn(a)digitaltesttools.com
<mailto:cjflynn@digitaltesttools.com>> wrote:
Leslie is correct that the DCP creation platform is not relevant.
But I think it is a mistake to follow the advice of submitting your work on the opposite
format of what the festival have asked for…even if they asked in an odd sort of way.
It is true that some software versions of some media servers will accept FAT32. But there
are some that don’t and the festival seems pretty specific about what they want. They do
that because there is only one formatted drive specification that all cinema systems must
use.
That is the EXT2 that Leslie mentioned.
And, make certain that if someone makes this drive for you that they make the inode size
128, since that is in the DCI and ISDCF and SMPTE specifications.
And, if the drive was originally formatted in FAT32, you’ll be limited to a 4 Gig file
size, regardless of the size of the drive. First format in exFAT, or leave it with NTSF if
that is what it was bought as.
Here is what I do.
The ISDCF document gives the following command line in a linux type system.
mkfs -t ext3 -I 128 -m 0 /dev/xddN
with xddN being the drive ‘name’, which is most often something like ‘sdb1’ – you can
find that name by the command
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
Then unmount with
sudo umount /dev/sdb1
And here are two other formatting commands that work. Myself, I prefer the last one since
it allows me to name the partition as it is being made.
sudo mke2fs -t ext3 -I 128 -L DCPs 0 /dev/sdb1 – slightly different command set
sudo mkfs.ext3 -I 128 -m 0 -L your-chosen-name-of-drive /dev/sdb1 – this one adds a disk
name (change "DiskName" to 'my_dcp_drive' or whatever name you want to
give it) while formatting and partitioning...change that 'sdb1' to the proper
partition number.
Formatting the disk is not so quick – Those Superblocks might take a few minutes to
assemble.
Follow up by giving permissions to the drive with: (755 is usually recommended, but I use
777 for myself)
sudo chmod -R 777 /media/Your_Login_USER_NAME/your-chosen-name-of-drive
You might find that you need to change ownership
sudo chown owner:owner /media/owner/your-chosen-name-of-drive
I usually put my name twice, such as 'cj:cj', then '/media/cj/ctt_dcps'
I hope this helps. I’d hate you to have a black screen after getting this far. Good luck.
Tell us how it worked out and what you ended up doing.
C J Flynn
Cinema Test Tools <http://www.cinematesttools.com/>
On Jan 10, 2017, at 15:45 000PM, Leslie Hartmier
via DCPomatic <dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>> wrote:
No, the platform you use to create the DCP is not relevant. They may be wanting the
content on a EXT2 drive.
If it is small enough, you can provide it on a USB thumb drive formatted using FAT32.
(Most USB drives come formatted that way.)
Leslie
From: dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>
Sent: January 10, 2017 4:28 PM
To: dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>
Reply-to: jjverrico(a)gmail.com <mailto:jjverrico@gmail.com>
Subject: [DCP-o-matic] DCP for Linux
Hello
I've used DCP-o-Matic on a Windows machine to create a DCP for a short film I made.
Worked great. I entered the short film in a film festival and got accepted. They are
asking me for a Linux compatible DCP. Do I need to create the DCP on Linux for it to be
Linux compatible?
Thanks
Joseph
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net <mailto:DCPomatic@carlh.net>
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
<http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic>
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net <mailto:DCPomatic@carlh.net>
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
<http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic>
--
http://akadcp.com/ <http://akadcp.com/>
https://www.facebook.com/akadcp
<https://www.facebook.com/akadcp>_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic 
5:24 p.m.
On a Mac, I also used Macfuse and fuse2ext to format ext discs on a Mac (it's
integrated into the standard OS X disc utility). However, it, too, defaults to inode size
256. I was successful to transfer DCPs to some servers using this method. It may be
possible to hack some files to make it default to inode size 128.
But - as a result, inode size 256 is also just 'mostly' compatible, and not
compliant, just as NTFS.
Coming from a Windows based DCP creation tool, NTFS is the safest way. Whenever I use
ext2-drivers on Windows or Mac systems, I am extremely careful, and I prefer to use them
for reading purposes only. I usually prefer to create the DCP directly onto the
transport/ingest drive. That way the hashing/digest of e.g. DCP-o-matic directly onto the
ingest media is a solid integrity check. In my case, that it usually a CRU slotted drive
with an NTFS drive.
Sorry, but at the current state of software, creating and writing to an ext-formatted disc
is only compliant and safe from a Linux environment. You can't even do that easily
from a GPARTED boot-medium, as it doesn't automount other drives. And getting into
commandline to create mountpoints, etc. is nothing for the daily windows and mac user.
That said, you may need to write to an ext-drive often, but the need to format/partition
it comes up only once in a while.
I agreee, ext2 IS the standard, but for most users (even Mac users), NTFS is the safer
way. NOT mandating NTFS as a DCI/SMPTE standard, but I am absolutely sure NTFS support
will remain in all future server and TMS software.
- Carsten
12 Jan
12 Jan
2:42 a.m.
Just to add my twopence worth here...
Unfortunately it's not the case that all servers can read NTFS. Almost
all can, but I've encountered some that can't. And one was in the past
month so it remains a current issue. I'm afraid I can't remember server
make/model.
I would also warn against Paragon's EXT driver on Mac. I've had some
terrible problems using it and now completely abandoned it. It worked
fine for it's stated purpose but caused problems with Mac format drives
over USB3. It was responsible for completely borking my RAID among other
horrors.
Totally agree with CJ about following the standard. This is the whole
point of DCP - if a DCP plays in one place, it should play anywhere -
that's the reason for having a public standard. Anything else and you're
asking for a panicked phone call the one day, the one time when you
least need it.
I keep a cheap linux box under my desk and it's the only thing I ever
use to load up drives. I work on Macs mostly and then copy over the
network. That Linux box cost £100 and is worth it's weight in gold.
However, it's a bugbear of mine that, now that DCP-o-matic has put the
power to films to screen back in the hands of filmmakers and cinemas,
without exorbitant post house rates, the one sticking point now seems to
be getting the damn thing on a drive! It's one of the few remaining
barriers to full democratisation of this technology.
Jim
On 11/01/2017 09:33, cjflynn--- via DCPomatic wrote:
Manuel, hello
I understand that NTFS often works in many servers (and that if you
are going to use NTSF that best results come if it is formatted with
MRB). But it doesn’t have to. As DCPs move toward SMPTE Compliance,
new server software and firmware is released more often and is more
complicated. A new update for any server could pass inspection without
NTSF working. NTSF is a proprietary format of Microsoft and some
company may decide that they don’t want to have the liability of using
MS code in their system, or to pay for it or the alternative source
for the code.
Ext2 is the standard.
The professional thing to do is to follow the standard. If the
originator of material wasn’t a professional before, he is a
professional now. And we as suppliers should be professional and make
certain to tell them how to step up their game from lens to lens.
Following the spec is the only way to make that happen.
Thanks Leslie. Just to round out your info. I use Paragon’s ExtFS for
the Mac, and it is very good for reading and writing. Formatting to
any ext formats is straightforward if you are going for the 256 inode
size. But changing the inode to 128 is not on the list. Actually,
Paragon have sent me a command that is supposed to work, but it is
completely undocumented, and I haven’t had a chance to try it.
Is that your experience with Windows? Or does it have an easy way to
write inode 128?
Thanks, and sorry for the rant Manuel.
C J
On Jan 10, 2017, at 22:59 000PM, Manuel AC via
DCPomatic
<dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>> wrote:
Just sent it in an NTFS formatted disk. If possible make sure that
the partition table is MBR and not GUID or something else.
Being in a windows machine is the easiest and safest. It will work
without any problem.
On Wed, Jan 11, 2017 at 1:14 AM, Leslie Hartmier via DCPomatic
<dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>> wrote:
If you have no experience with it, you should get someone else to
format the drive, and you use ext2fsd, ext2 IFS, or Paragon's
EXTFS for Windows to copy the DCP to the drive. Windows does not
exactly support linux partitions very well.
The instructions below are amazing, but they are a bit daunting
if you've never done it before.
Leslie
*From:* jjverrico(a)gmail.com <mailto:jjverrico@gmail.com>
*Sent:* January 10, 2017 8:48 PM
*To:* cjflynn(a)digitaltesttools.com
<mailto:cjflynn@digitaltesttools.com>
*Cc:* leslieh1(a)shaw.ca <mailto:leslieh1@shaw.ca>;
dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>
*Subject:* Re: [DCP-o-matic] DCP for Linux
Thank for the information. I was hoping I could format a USB
memory stick to EXT2 on my Windows machine and then copy the DCP
file structure onto that EXT2 formatted USB memory stick. I
don't have Linux on my Windows machine. I don't know Linux. Is
this possible?
On Tue, Jan 10, 2017 at 5:01 PM, cjflynn(a)digitaltesttools.com
<mailto:cjflynn@digitaltesttools.com>
<cjflynn(a)digitaltesttools.com
<mailto:cjflynn@digitaltesttools.com>> wrote:
Leslie is correct that the DCP creation platform is not
relevant.
But I think it is a mistake to follow the advice of
submitting your work on the opposite format of what the
festival have asked for…even if they asked in an odd sort of way.
It is true that some software versions of some media servers
will accept FAT32. But there are some that don’t and the
festival seems pretty specific about what they want. They do
that because there is only one formatted drive specification
that all cinema systems must use.
That is the EXT2 that Leslie mentioned.
And, make certain that if someone makes this drive for you
that they make the inode size 128, since that is in the DCI
and ISDCF and SMPTE specifications.
And, if the drive was originally formatted in FAT32, you’ll
be limited to a 4 Gig file size, regardless of the size of
the drive. First format in exFAT, or leave it with NTSF if
that is what it was bought as.
Here is what I do.
The ISDCF document gives the following command line in a
linux type system.
mkfs -t ext3 -I 128 -m 0 /dev/xddN
with xddN being the drive ‘name’, which is most often
something like ‘sdb1’ – you can find that name by the command
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
Then unmount with
sudo umount /dev/sdb1
And here are two other formatting commands that work. Myself,
I prefer the last one since it allows me to name the
partition as it is being made.
sudo mke2fs -t ext3 -I 128 -L DCPs 0 /dev/sdb1 – slightly
different command set
sudo mkfs.ext3 -I 128 -m 0 -L
your-chosen-name-of-drive /dev/sdb1 – this one adds a disk
name (change "DiskName" to 'my_dcp_drive' or whatever name
you want to give it) while formatting and
partitioning...change that 'sdb1' to the proper partition number.
Formatting the disk is not so quick – Those Superblocks might
take a few minutes to assemble.
*Follow up by giving permissions to the drive* with: (755 is
usually recommended, but I use 777 for myself)
sudo chmod -R 777
/media/Your_Login_USER_NAME/your-chosen-name-of-drive
You might find that you need to change ownership
sudo chown owner:owner /media/owner/your-chosen-name-of-drive
I usually put my name twice, such as 'cj:cj', then
'/media/cj/ctt_dcps'
I hope this helps. I’d hate you to have a black screen after
getting this far. Good luck. Tell us how it worked out and
what you ended up doing.
C J Flynn
Cinema Test Tools <http://www.cinematesttools.com/>
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic On Jan 10, 2017, at 15:45 000PM, Leslie
Hartmier via
DCPomatic <dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>>
wrote:
No, the platform you use to create the DCP is not relevant.
They may be wanting the content on a EXT2 drive.
If it is small enough, you can provide it on a USB thumb
drive formatted using FAT32. (Most USB drives come formatted
that way.)
Leslie
*From:* dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>
*Sent:* January 10, 2017 4:28 PM
*To:* dcpomatic(a)carlh.net <mailto:dcpomatic@carlh.net>
*Reply-to:* jjverrico(a)gmail.com <mailto:jjverrico@gmail.com>
*Subject:* [DCP-o-matic] DCP for Linux
Hello
I've used DCP-o-Matic on a Windows machine to create a DCP
for a short film I made. Worked great. I entered the short
film in a film festival and got accepted. They are asking
me for a Linux compatible DCP. Do I need to create the DCP
on Linux for it to be Linux compatible?
Thanks
Joseph
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net <mailto:DCPomatic@carlh.net>
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
<http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic>
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net <mailto:DCPomatic@carlh.net>
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
<http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic>
--
http://akadcp.com/
https://www.facebook.com/akadcp
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net <mailto:DCPomatic@carlh.net>
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
1:23 p.m.
Am 12.01.2017 um 03:42 schrieb Jim Dummett via DCPomatic:
Just to add my twopence worth here...
Unfortunately it's not the case that all servers can read NTFS. Almost all can, but
I've encountered some that can't. And one was in the past month so it remains a
current issue. I'm afraid I can't remember server make/model.
Hi Jim,
is there a chance for you to find out what server this was?
Technically, it wouldn't be so complicated to create a suiitable environment for DCP
copying/formatting drives. Someone would need to create a beefed up boot-stick or virtual
machine with the necessary tools and a simple GUI.
- Carsten
2:24 p.m.
Hello
could you post the full original request email from the festival? It
might shed some more light on what they mean with "Linux Compatible
DCP".
Optional Way download:
Maybe you can ask them if you can deliver the DCP as a zip/7zip
download (opt. Encrypted) download using
myAirbridge/wetransfere/dropbox/..... But be carefull using MacOS
onboard zip creation tool for this for anything above 1,9GB! In some
cases/anytime(?) it creates zip archives that are only usable by macOS
Zip. They result in offset errors on linux/windows systems. Because of
that i ususally request 7zip files (.7z) for our festival in
Weiterstadt.
Optional filesystem:
But back to stick/usb disk creation. If your short film is small in
size (below 1,9GB) per file you could even try FAT32 as the
filesystem. But as said it has a 2GB filelimit.
Carsten Kurz via DCPomatic writes:
Am 12.01.2017 um 03:42 schrieb Jim Dummett via
DCPomatic:
--
Markus Kalb
Filmkreis an der TU Darmstadt
Just to add my twopence worth here...
Unfortunately it's not the case that all servers can read NTFS. Almost all can, but
I've encountered some that can't. And one was in the past month so it remains a
current issue. I'm afraid I can't remember server make/model.
Hi Jim,
is there a chance for you to find out what server this was?
Technically, it wouldn't be so complicated to create a suiitable environment for DCP
copying/formatting drives. Someone would need to create a beefed up boot-stick or virtual
machine with the necessary tools and a simple GUI.
- Carsten_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic 
7:03 p.m.
Technically, it wouldn't be so complicated to
create a suiitable environment for DCP copying/formatting drives. Someone would need to
create a beefed up boot-stick
or virtual machine with the necessary tools and a simple GUI.
I'm looking into a way around this (Windows/OS X utility to format/write
EXT2).
Cheers,
Carl
16 Jan
16 Jan
11:44 a.m.
Hmm. Interesting. A good first step I guess might be to submit a patch
for gparted to allow you to set the inode. Most people of course prefer
a GUI but I only know of command line methods to do it completely by the
book with 128 inode value.
Carsten - I've emailed the cinema to ask what server model it was that
couldn't read NTFS. Will let you know.
Jim
On 12/01/2017 19:03, Carl Hetherington via DCPomatic wrote:
Technically,
it wouldn't be so complicated to create a suiitable environment for DCP
copying/formatting drives. Someone would need to create a beefed up boot-stick
or virtual machine with the necessary tools and a simple GUI.
I'm looking into
a way around this (Windows/OS X utility to format/write
EXT2).
Cheers,
Carl
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
1:41 p.m.
Am 16.01.2017 um 12:44 schrieb Jim Dummett via DCPomatic:
Hmm. Interesting. A good first step I guess might be
to submit a patch for gparted to allow you to set the inode. Most people of course prefer
a GUI but I only know of command line methods to do it completely by the book with 128
inode value.
One of the bad things of doing this classic style with GPARTED and commandline is that
most users will have a hard time to identify their drives and LINUX' classfication of
devices, block devices, partitions, etc. If they are doing this with a bootable GPARTED on
their standard PC, there is a high risc they could delete their existing partitions.
- Carsten
4:27 p.m.
Hi
about the high risk Casten is talking. A solution could be the
clonezilla way. With the liveCD: inside a ncurses menu your are asked at
some time to insert a USB Stick/Drive to mount. All the drives/parts
that are present before that are not usable as destination in the none
expert selection way. But writing such a thing bug free and
idiot-user-save might not be worth it. There are so few users who need
to supply it on a stick. I think that 99% of the festivals/cinemas will
go download only in the near future. Be it because of ease of use or
because of security:
Inserting send in sticks or disks form unknown (direct from filmmakers)
sources into projection hardware is becoming more and more crazy! There
are the first linux ransomwares out in the open for linux and let's face it
the projection firmware patching process is a crawl!
Carsten Kurz via DCPomatic writes:
Am 16.01.2017 um 12:44 schrieb Jim Dummett via
DCPomatic:
--
Markus Kalb
Filmkreis an der TU Darmstadt
Hmm. Interesting. A good first step I guess might
be to submit a patch for gparted to allow you to set the inode. Most people of course
prefer a GUI but I only know of command line methods to do it completely by the book with
128 inode value.
One of the bad things of doing this classic style with GPARTED and commandline is that
most users will have a hard time to identify their drives and LINUX' classfication of
devices, block devices, partitions, etc. If they are doing this with a bootable GPARTED on
their standard PC, there is a high risc they could delete their existing partitions.
- Carsten
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
7:41 p.m.
I understand and agree with that statement.
But it is also true that anyone that has gotten to this stage has jumped that hurdle many
times in the process of storing captured light on their first media, backing that up as
they shoot and erasing old backups, sending it to post or to their own post program, and
several opportunities to fail in post-production. They should be used to being paranoid
with their media.
I – being neither a programmer or an engineer – also always figure that if I can figure it
out and follow instructions, then anyone can.
I must say that I have never done a bootable GPARTED, so I can only imagine that there
might be some addition confusion to what I see when using a Virtual drive on my computer.
But if they are told to do either or both the following commands, wouldn’t it show up well
enough? …that if it is a 8 or 32 Gig drive something close to that size will be indicated?
sudo fdisk -l
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
Perhaps every other line should be a warning and urging backups and mentioning that the
user is doing a professionals job and they shouldn’t have any distractions at this
dangerous point.
C J
On Jan 16, 2017, at 05:41 000AM, Carsten Kurz via
DCPomatic <dcpomatic(a)carlh.net> wrote:
Am 16.01.2017 um 12:44 schrieb Jim Dummett via DCPomatic:
Hmm. Interesting. A good first step I guess might
be to submit a patch for gparted to allow you to set the inode. Most people of course
prefer a GUI but I only know of command line methods to do it completely by the book with
128 inode value.
One of the bad things of doing this classic style with GPARTED and commandline is that
most users will have a hard time to identify their drives and LINUX' classfication of
devices, block devices, partitions, etc. If they are doing this with a bootable GPARTED on
their standard PC, there is a high risc they could delete their existing partitions.
- Carsten
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic 
19 Jan
19 Jan
6:52 p.m.
On 16 Jan 2017, at 12:44, Jim Dummett via DCPomatic
<dcpomatic(a)carlh.net> wrote:
Hmm. Interesting. A good first step I guess might be to submit a patch for gparted to
allow you to set the inode. Most people of course prefer a GUI but I only know of command
line methods to do it completely by the book with 128 inode value.
A bit of context wrt inode size of 128 bytes; these couple of paragraphs were written in
runes in the year of 2013:
///
The default inode size for EXT2/3 filesystems changed years ago (from 128 to 256 bytes).
The motivation was to be able to store extended attributes. In Digital Cinema context
noone should care, really, but there's a catch:
Systems with 2.4 series linux kernels won't be able to mount filesystems with inode
sizes > 128 bytes at all.
In linux history terms the 2.4 series is the middle ages. Noone sane should be running
kernels that old. Fact is there are some systems out there which do.
These are abandoned legacy systems.
Their vendors don't care to upgrade them.
Their users are not eager to spend a couple of K's again.
So if you don't want to run into issues you'll want to use 128 bytes for inode
size, period.
Yes, this is 2013. Most userland FS tools won't even let you tweak the setting. Its
relevance died that far back. mkfs.ext2 and mkfs.ext3 - here we come!
One thing these vendors are rather tight-lipped about:
Linux 2.4 series kernels carry a long list of vulnerabilities. These systems are not at
all safe or able to withstand even half-serious snooping since a long time. If I were Fox
or Warner or Sony I'd make sure these boxes either get updated or blacklisted fast.
///
My theory and hope, or rather, game plan at the time was that userland would increasingly
ignore a setting from the stone ages and force those systems out of the market.
I don’t have any numbers to check how that worked out.
Got a feeling, though, it just didn’t and the affected systems are still out there
somewhere. Waiting. Slowly filling their caves with bones of the newborns they get fed
with every now and then. Patiently preparing to grab you by the throat :)
Wolfgang
7:47 p.m.
Hi,
I know from first-hand experience that Datasat DC20 and XDC Solo G3
(now Barco) do not handle inode sizes in ext2 other than 128 bytes.
These servers are long out of production, but there are still a couple
of them in use, at least here in Sweden.
The reason for this limitation of the DC20 and Solo G3 is that it uses
a Windoze OS with an old an buggy ext2 fs driver which only supports
the older, smaller inode size.
Best,
Mattias
On Thu, Jan 19, 2017 at 7:52 PM, Wolfgang Woehl via DCPomatic
<dcpomatic(a)carlh.net> wrote:
--
-mattias
On 16 Jan 2017, at 12:44, Jim Dummett via
DCPomatic <dcpomatic(a)carlh.net> wrote:
Hmm. Interesting. A good first step I guess might be to submit a patch for gparted to
allow you to set the inode. Most people of course prefer a GUI but I only know of command
line methods to do it completely by the book with 128 inode value.
A bit of context wrt inode size of 128 bytes; these couple of paragraphs were written in
runes in the year of 2013:
///
The default inode size for EXT2/3 filesystems changed years ago (from 128 to 256 bytes).
The motivation was to be able to store extended attributes. In Digital Cinema context
noone should care, really, but there's a catch:
Systems with 2.4 series linux kernels won't be able to mount filesystems with inode
sizes > 128 bytes at all.
In linux history terms the 2.4 series is the middle ages. Noone sane should be running
kernels that old. Fact is there are some systems out there which do.
These are abandoned legacy systems.
Their vendors don't care to upgrade them.
Their users are not eager to spend a couple of K's again.
So if you don't want to run into issues you'll want to use 128 bytes for inode
size, period.
Yes, this is 2013. Most userland FS tools won't even let you tweak the setting. Its
relevance died that far back. mkfs.ext2 and mkfs.ext3 - here we come!
One thing these vendors are rather tight-lipped about:
Linux 2.4 series kernels carry a long list of vulnerabilities. These systems are not at
all safe or able to withstand even half-serious snooping since a long time. If I were Fox
or Warner or Sony I'd make sure these boxes either get updated or blacklisted fast.
///
My theory and hope, or rather, game plan at the time was that userland would increasingly
ignore a setting from the stone ages and force those systems out of the market.
I don’t have any numbers to check how that worked out.
Got a feeling, though, it just didn’t and the affected systems are still out there
somewhere. Waiting. Slowly filling their caves with bones of the newborns they get fed
with every now and then. Patiently preparing to grab you by the throat :)
Wolfgang
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
7:53 p.m.
I has being avoiding to enter the eternal discussion about disk formats.
But I'm extremely interested to know the specific errors have encountered.
Thanks Wolfang, great info. Always thought the 128 was for windows based
servers/tms using a commercial EXT2 plugin that only supports 128,
interesting that some linux based servers can have this problem too.
Would be great to know the exact Servers, TMS or other systems that do not
recognize FAT32, NTFS or even EXT2 (yes they do exist), or any other
limitation relevant for operation and the kind of users now with dcpomatic.
And if known, what upgrade is needed (free software, hardware, new system)
I have absolutely no empathy to theaters that don't even care to update
software that is a few years old, or technicians doing crappy
installations. Most do a great work and don't deserve suffering outdated
workflows because of that few lazy ones.
I have a largely delayed article about diskless distribution, mainly for
festivals and the productions that mostly do festivals, so some unorthodox
tricks will be there, including non recommended disk formats that actually
wok. I'm comfortable sharing with whoever want to comment or collaborate
finishing it for a wider release. Nothing so especial, but I don't want
some random users interpreting that they can send whatever they want out
there.
Manuel AC
On Thu, Jan 19, 2017 at 1:52 PM, Wolfgang Woehl via DCPomatic <
dcpomatic(a)carlh.net> wrote:
--
http://akadcp.com/
https://www.facebook.com/akadcp
On 16 Jan 2017, at 12:44, Jim Dummett via
DCPomatic <dcpomatic(a)carlh.net>
wrote:
Hmm. Interesting. A good first step I guess might be to submit a patch
for gparted
to allow you to set the inode. Most people of course prefer a
GUI but I only know of command line methods to do it completely by the book
with 128 inode value.
A bit of context wrt inode size of 128 bytes; these couple of paragraphs
were written in runes in the year of 2013:
///
The default inode size for EXT2/3 filesystems changed years ago (from 128
to 256 bytes). The motivation was to be able to store extended attributes.
In Digital Cinema context noone should care, really, but there's a catch:
Systems with 2.4 series linux kernels won't be able to mount filesystems
with inode sizes > 128 bytes at all.
In linux history terms the 2.4 series is the middle ages. Noone sane
should be running kernels that old. Fact is there are some systems out
there which do.
These are abandoned legacy systems.
Their vendors don't care to upgrade them.
Their users are not eager to spend a couple of K's again.
So if you don't want to run into issues you'll want to use 128 bytes for
inode size, period.
Yes, this is 2013. Most userland FS tools won't even let you tweak the
setting. Its relevance died that far back. mkfs.ext2 and mkfs.ext3 - here
we come!
One thing these vendors are rather tight-lipped about:
Linux 2.4 series kernels carry a long list of vulnerabilities. These
systems are not at all safe or able to withstand even half-serious snooping
since a long time. If I were Fox or Warner or Sony I'd make sure these
boxes either get updated or blacklisted fast.
///
My theory and hope, or rather, game plan at the time was that userland
would increasingly ignore a setting from the stone ages and force those
systems out of the market.
I don’t have any numbers to check how that worked out.
Got a feeling, though, it just didn’t and the affected systems are still
out there somewhere. Waiting. Slowly filling their caves with bones of the
newborns they get fed with every now and then. Patiently preparing to grab
you by the throat :)
Wolfgang
_______________________________________________
DCPomatic mailing list
DCPomatic(a)carlh.net
http://main.carlh.net/cgi-bin/mailman/listinfo/dcpomatic
11 Jan
11 Jan
2:02 p.m.
Am 11.01.2017 um 04:48 schrieb Joseph Verrico via DCPomatic:
Thank for the information. I was hoping I could
format a USB memory stick to EXT2 on my Windows machine and then copy the DCP file
structure onto that EXT2 formatted USB memory stick. I don't have Linux on my Windows
machine. I don't know Linux. Is this possible?
No, I don't know any way to actually format a USB stick or HD with an ext2/3 partition
under windows. Other than using e.g. Linux in a Virtual machine.
How big in size is your DCP?
The question is, is that festival strictly booked on ext2, or did they have an issue with
the format you supplied before? Because every server can read NTFS formatted discs. You
just need to make sure it uses an MBR partition scheme (which is actually not so easy to
accomplish nowadays, especially if your disc/medium is currently already using GUID/GPT)).
When I need to create an ext2/3 drive with the proper parameters for DCinema, I use a
boot-stick with GPARTED (a minimal Linux with some disc-tools on it). Even with GPARTED, I
need to use the commandline to create the right partition parameters.
I would first get back to the festival tech people and ask them wether their submission
specs are nailed on ext2 (some festivals are very strict on this).
If they are, you need to do it yourself or find someone who is able to do it. If they say
'Okay, If you can make sure it's a proper MBR-NTFS disc, we're okay with
it', then go that route.
- Carsten
3021
days inactive
3030
days old
19 comments
10 participants
participants (10)
-
Carl Hetherington -
Carsten Kurz -
cjflynn＠digitaltesttools.com -
Jim Dummett -
Joseph Verrico -
Leslie Hartmier -
Manuel AC -
Markus Kalb -
Mattias Mattsson -
Wolfgang Woehl