(old)Puppy Linux Discussion Forum

zigbert wrote:Pburn supports writing UDF, but the standard seems to be unsharp, since Linux-UDF can't be read by Windows.

I also thought that Linux wouldn't read Windows-UDF, but you mention 'modprobe udf'.... Will this work for a disc written in Windows?

if so, why isn't this setup by default during boot?

dd if=/dev/zero of=test.img count=0 seek=10 bs=1M # create small image file, just to speed up things
mkudffs test.img # make udf file system (mkudffs from udf-tools)
dd if=test.img of=/dev/sr0  bs=32k # burn it to DVD - be  patient. growisofs -Z /dev/sr0=test.img also works here.

#### obviously you could replace the above with mkudffs /dev/sr0 directly - but you will be in for a very very long wait .... (in fact I never finished mine, I rebooted the computer before it finished...)

mount -t udf /dev/sr0 /mnt/data # mount it back - read/write !
echo some data > /mnt/data/file # write some data to the udf disc
umount /mnt/data # save and unmount - be patient again, kernel will "finalise" the disc

mount: wrong fs type, bad option, bad superblock on /dev/sr0,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

Is multisession reliable in Puppy?

I usually do a song/track and then write to udf dvd/cd

If I can achieve the same thing with Pburn in a multisession way, that would do!

Smithy wrote:but I guess you are writing (and rewriting/ updating your save file to dvd)?

I am just backing up (archiving) recorded data, wavs, Reaper, Podium setups Cover Designs and the like, all pertaining to the same project so I don't have to rummage through loads of discs, and then I am appending data when doing remixes, maybe a month later to the same DVD disc.

James Bond, I have been using Sonic Direct Letter Access for a very long time under Windows usually udf 1.02 or 1.05. I used Roxio, but it buggered up a lot more than Veritas/Sonic programme.
Burn time for 200meg was/ is about 3 minutes or so. Time to make a cup of tea after a session.

I've had to do a few "emergency" recoveries from dual layer discs in my time, usually due to impatience, the wind blowing the wrong way or some stupid programme trying to kick in (I think, but never really got to the bottom of it). People always warned me about packet writing, but on the whole, it did the job, and when I see a button on an airplane that says "Do not press" I just can't help pressing it.

That's some very clever stuff you are doing there with no packet writing driver involved!

From what I remember about Multisession burning, it drags the last session up and links it to your new session, so that you can see it when you next load the disc, I think it needed to use up some of the megs on the disc to do this, fair enough, but I used to run out of storage space on the cd occasionally, now we are on dvd this 'aint a problem...especially dual layer.

I tried slotting in a hard disk(s) to archive, but then it adds more noise (I run a Zalman Quiet PC 'cos I record vocalists and acoustic stuff).

I will try some multisession tests with the lovely P Burn and see how it holds up!

jamesbond wrote:EDIT: How you do write UDF in Pburn? mkudffs? or mkisofs? If you use mkisofs, you are actually creating UDF/ISO bridge and that should work straightaway (because even if Windows can't read UDF part, it will still be able to read the ISO part).

-allow-limited-size -udf 

jamesbond wrote:try do modprobe udf then mount the disc on command line "mount -t udf /dev/sr0 /mnt/cdrom"

Smithy wrote:If I can achieve the same thing with Pburn in a multisession way, that would do!

jamesbond wrote:Pburn is an awesome goodness that I only use but don't understand

Mount options for udf

udf is the "Universal Disk Format" filesystem defined by the Optical Storage Technology Association, and is often used for DVD-ROM. See also iso9660.

gid=
Set the default group.

umask=

Set the default umask. The value is given in octal.

uid=

Set the default user.

unhide

Show otherwise hidden files.

undelete
Show deleted files in lists.
nostrict
Unset strict conformance.
iocharset
Set the NLS character set.
bs=
Set the block size. (May not work unless 2048.)

novrs

Skip volume sequence recognition.

session=
Set the CDROM session counting from 0. Default: last session.
anchor=
Override standard anchor location. Default: 256.
volume=
Override the VolumeDesc location. (unused)
partition=
Override the PartitionDesc location. (unused)
lastblock=
Set the last block of the filesystem.
fileset=
Override the fileset block location. (unused)
rootdir=
Override the root directory location. (unused)

mkdir /mnt/DVD
mount-FULL -s -o nostrict /dev/sr0 /mnt/DVD

zigbert wrote:

jamesbond wrote:Pburn is an awesome goodness that I only use but don't understand

I guess that mean my coding is unreadable