-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 G T Smith wrote: > David Bolt wrote: >> 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: > >> [EMAIL PROTECTED]:~> cd /usr/src/packages/SOURCES >> [EMAIL PROTECTED]:/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 >> [EMAIL PROTECTED]:/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 >> [EMAIL PROTECTED]:/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 >> [EMAIL PROTECTED]:/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 >> [EMAIL PROTECTED]:/usr/src/packages/SOURCES> sudo mount /dev/hdc /mnt >> root's password: >> mount: you must specify the filesystem type >> [EMAIL PROTECTED]:/usr/src/packages/SOURCES> >> [EMAIL PROTECTED]:/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 > > > Hmmm... you mounted the media, umount then try.... > >
OK, on my old and now dead DVD device this worked with -c (dunno why suspect it was rather slow so one could get a constant data stream)... Does not work on the newer replacement without -cz and then unreliably (get an I/O error)..but files are extractable, so this seems to be hardware related... still can read tar archive directly however... - -- ============================================================================== I have always wished that my computer would be as easy to use as my telephone. My wish has come true. I no longer know how to use my telephone. Bjarne Stroustrup ============================================================================== -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFHFkd5asN0sSnLmgIRAq/zAKD23qibsjgIahLhQSbkSdMH1YjtdwCg8Ach pnc/4Og0ZUk9jr+no30lNXQ= =m7KA -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
