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octonysa
Joined: 24 Jan 2012 Posts: 2
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Posted: Tue 24 Jan 2012, 21:20 Post subject:
Puppy can't use a DVD-RAM? Subject description: DVD-RAM will not mount or play data files |
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I'm using both Slacko 5.3.1 Black Beauty and Lucid 5.2.8 and neither one will play a data file from my DVD I have no problem with audio or burning ISO files. I have a Compaq Presario Model cq 5000 with a AMD 170 u cpu at 2Ghz with 8 Gb of ram on a Foxcon amd 3+ MB with a 760 chip set and a 500 GB HD. The DVD is a HP DVD- RAM GH 60L . The drive mounter lists it as a sr0 iso9660.
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Flash
Official Dog Handler

Joined: 04 May 2005 Posts: 12818 Location: Arizona USA
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Posted: Tue 24 Jan 2012, 22:54 Post subject:
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As far as I know, Linux cannot read a DVD-RAM.
Or did you mean the drive says DVD-RAM on it and you tried to read a regular DVD (say, a DVD-R or DVD+R)?
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octonysa
Joined: 24 Jan 2012 Posts: 2
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Posted: Wed 25 Jan 2012, 00:36 Post subject:
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Thank you for your answer. It does not work in Ubuntu 11.10 either. Now I know why.
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Karl Godt

Joined: 20 Jun 2010 Posts: 4208 Location: Kiel,Germany
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Posted: Wed 25 Jan 2012, 01:47 Post subject:
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Quote: | As far as I know, Linux cannot read a DVD-RAM. |
Look at
http://en.wikipedia.org/wiki/DVD-RAM#Compatibility
It says it can be udf formatted ..
*
Look further down the page for
Puppy 528 can't read DVD data disk made by Windows
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8-bit

Joined: 03 Apr 2007 Posts: 3425 Location: Oregon
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Posted: Wed 25 Jan 2012, 04:35 Post subject:
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Karl, I have been there and used some of your exelent information to access data on a DVD+ r/w that vista formatted by default as UDF.
I would like to see your work progress to the point of where I could access an optical disk just by clicking on it and the underlying software deciding if the optical disk was 9660 or udf format and applying the correct code to mount it.
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Karl Godt

Joined: 20 Jun 2010 Posts: 4208 Location: Kiel,Germany
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Posted: Wed 25 Jan 2012, 09:03 Post subject:
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8-bit :
Today just yet i got smsd,gsmsmsd AND vodafone-mobile-connect-card-driver-for-linux working after 3 month trying around .. :proud:
It seems to miss two or three pythons but works .. posting from it now on Puppy511 .. :proud:
There are several files involved and i would need to boot frugal pfix=ram to make a clean package .. for i am a full install freak ..
I will see what i can do , but it might take a week and a testing cycle for my typsos
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Flash
Official Dog Handler

Joined: 04 May 2005 Posts: 12818 Location: Arizona USA
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Posted: Wed 25 Jan 2012, 09:11 Post subject:
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Is it possible that Puppy's kernel needs to be compiled with DVD-RAM support built in? I wouldn't know how to check.
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Karl Godt

Joined: 20 Jun 2010 Posts: 4208 Location: Kiel,Germany
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Posted: Wed 25 Jan 2012, 11:40 Post subject:
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Quote: | A few days ago Puppy 5 was released, using a recent Linux kernel that, if the response above is correct, should natively support UDF. If that's true, then the issue is not of UDF, but of support for DVD-RAM.
I tested three brands of DVD-RAM disks, 3x and 5x, both blank and formated and written to (by SLAX 6.1.2) in UDF 1.5 format. Puppy 5 was unable to mount any of the disks, and its chief burn utility Pburn appears equally unable to do anything with a blank DVD-RAM disk.
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Quote: | Starting from kernel 2.6.26, Linux fully supports all versions of UDF, so simply make sure that you are using a recent distribution and you should be alright. |
http://linuxexchange.org/questions/283/udfdla-support-in-linux
Code: | modprobe -l |grep udf |
bash-3.00# Code: | grep UDF /etc/modules/* |
Quote: | /etc/modules/DOTconfig-k2.6.33.2-27MAY2010-LUPU-SMP-TICKLESS:CONFIG_UDF_FS=m
/etc/modules/DOTconfig-k2.6.33.2-27MAY2010-LUPU-SMP-TICKLESS:CONFIG_UDF_NLS=y |
So the lupu kernel is configured with udf support as module and mount-FULL should autoload it
For now the CLI in puppy is your best friend mounting DVDs formatted other than iso9660 .
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Flash
Official Dog Handler

Joined: 04 May 2005 Posts: 12818 Location: Arizona USA
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Posted: Wed 25 Jan 2012, 12:17 Post subject:
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I think maybe the problem is not the way the DVD-RAM is formatted but the fact that it's a DVD-RAM. I have several drives which claim they can read and write DVD-RAMs but Puppy couldn't do it. I only tried once, and returned the DVD-RAM for a refund after I discovered I couldn't use it.
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Karl Godt

Joined: 20 Jun 2010 Posts: 4208 Location: Kiel,Germany
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Posted: Wed 25 Jan 2012, 13:40 Post subject:
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It seems that DVD-RAM can even be formatted with NTFS ..
Maybe even with EXT2 ..
Maybe Gparted can do this running without the filtering puppy shell script ..
I have no burner , so can not confirm this .
mkfs.ext2 /dev/sr0 in case sr0 is the burner would be interesting to try .
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LateAdopter
Joined: 27 May 2011 Posts: 285 Location: Reading UK
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Posted: Wed 25 Jan 2012, 15:43 Post subject:
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I have just tried Lupu528 with one of my DVD-RAM disks and it failed to mount.
To work around this I added a line to /etc/fstab to specify a mount point and a filesystem for /dev/sr0
I put /mnt/dvd as the mount point since it already exists
udf as filesystem
rw
Having rebooted. looking in /mnt the folder dvd now has a grey dot. Clicking the folder successfully mounted the DVD-RAM disk and the video on it would play correctly.
Note: the puppy mounter still failed to mount the disk
So Lupu 528 is capable of mounting and using a DVD-RAM
My entry in fstab was:
/dev/sr0 /mnt/dvd udf rw 0 0
Since am a beginner it is likely that this will break something else.
Perhaps an expert could advise what a complete fstab entry should look like!
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Karl Godt

Joined: 20 Jun 2010 Posts: 4208 Location: Kiel,Germany
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Posted: Wed 25 Jan 2012, 15:54 Post subject:
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fstab is pretty old ..
fstab is static , not dynamic .
Putting anything else into it would not simply mount : wrong filesystem type .
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tony
Joined: 14 Jan 2006 Posts: 328 Location: Montreal.ca
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Posted: Wed 25 Jan 2012, 16:22 Post subject:
Subject description: udftools |
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Hi,
after a lot of googling I downloaded udftools from the package manager.
Added this line to /etc/fstab :-
xxxxx /dev/sr0 /mnt/dvd ext2,udf,iso9660 noatime,noauto,users,rw xxxxxxxxxxxxx
Sorry that should be :-
/dev/sr0 /mnt/dvd ext2,udf,iso9660 noatime,noauto,users,rw 0 0
As I did not want the old format on the disk I formated the dvdram using :- mkudffs /dev/sr0
mounted sr0 from rxvt console :- mount /dev/sr0
Then read and write from /mnt/dvd
Make sure that your dvd burner can handle dvd-ram disks
also that you have read /write permissions.
This worked for me in puppy lupu 528
Regards Tony
Last edited by tony on Wed 25 Jan 2012, 17:05; edited 1 time in total
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LateAdopter
Joined: 27 May 2011 Posts: 285 Location: Reading UK
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Posted: Wed 25 Jan 2012, 16:44 Post subject:
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tony
Do you know whether udftools have a method for setting/clearing the DVD-RAM write protect status?
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tony
Joined: 14 Jan 2006 Posts: 328 Location: Montreal.ca
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Posted: Wed 25 Jan 2012, 17:18 Post subject:
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Hi late adopter,
I just found my /etc/fstab entry should've had a couple of zeroes at the end.
/dev/sr0 /mnt/dvd ext2,udf,iso9660 noatime,noauto,users,rw 0 0
this might be the problem.
udftools can reformat the disk. My disks were also read only before I reformatted them.
I would guess that read/write permissions would have to be handled by linux commands using rxvt console.
Maybe a puppy guru could step in and help.
Regards Tony.
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