Re: [opensuse] Split command to burn DVD+R (file size)

On Wed, 17 Oct 2007, G T Smith wrote:-

<snip>

You do not need dd (or mount), tar with with the DVD/CD device name as
target does it nicely for reading (and writing). I would expect
multi-volume tar to work in the same way as it would with a tape device
in this scenario...

Would you mind letting me know just what options you used to make tar
write straight to a DVD? A few tests here, both as a normal user and
root, fail as shown below:

davjam@lion:~> cd /usr/src/packages/SOURCES
davjam@lion:/usr/src/packages/SOURCES> ls -l
total 236
-rw-r--r-- 1 davjam users 233501 2007-10-14 21:54 mplayerplug-in-3.45-0.pm.2.src.rpm
davjam@lion:/usr/src/packages/SOURCES> tar cf /dev/hdc mplayerplug-in-3.45-0.pm.2.src.rpm
tar: /dev/hdc: Cannot open: Read-only file system
tar: Error is not recoverable: exiting now
davjam@lion:/usr/src/packages/SOURCES> tar cf /dev/dvdrw mplayerplug-in-3.45-0.pm.2.src.rpm
tar: /dev/dvdrw: Cannot open: Read-only file system
tar: Error is not recoverable: exiting now
davjam@lion:/usr/src/packages/SOURCES> tar c --file=/dev/dvdrw mplayerplug-in-3.45-0.pm.2.src.rpm
tar: /dev/dvdrw: Cannot open: Read-only file system
tar: Error is not recoverable: exiting now
davjam@lion:/usr/src/packages/SOURCES> sudo mount /dev/hdc /mnt
root's password:
mount: you must specify the filesystem type
davjam@lion:/usr/src/packages/SOURCES>
davjam@lion:/usr/src/packages/SOURCES> su -
Password:
lion:~ # cd /usr/src/packages/SOURCES
lion:/usr/src/packages/SOURCES # tar cf /dev/hdc mplayerplug-in-3.45-0.pm.2.src.rpm
tar: /dev/hdc: Cannot open: Read-only file system
tar: Error is not recoverable: exiting now
lion:/usr/src/packages/SOURCES # tar cf /dev/dvdrw mplayerplug-in-3.45-0.pm.2.src.rpm
tar: /dev/dvdrw: Cannot open: Read-only file system
tar: Error is not recoverable: exiting now
lion:/usr/src/packages/SOURCES # tar c --file=/dev/dvdrw mplayerplug-in-3.45-0.pm.2.src.rpm
tar: /dev/dvdrw: Cannot open: Read-only file system
tar: Error is not recoverable: exiting now


Regards,
David Bolt

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