Re: cannot eject cdrom after burning dvd (2nd time)

bonnyr wrote:

Setup: RH ES3, Pioneer 109 DVD-RW installed on a Dell server

I'm trying to setup a backup script which burns to a dvd. The backup
process
works well (in that it creates a backup with the correct contents on
the dvd),
except that after the **second** time running it, the drive is no
longer accessible,
can't be mounted and the cdrom module cannot be unloaded.

The backup script comprises essentially two commands:
dvdrecord blank=fast dev=4,0,0

No, do not do that from; http://fy.chalmers.se/~appro/linux/DVD+RW/

It was observed that excessive reformats can render media unusable already
after 10-20 reformats. It appears to be a firmware deficiency, not some
common media defect [at least it was perfectly possible to salvage the
media in a unit of different brand], but I don't recommend [enforced]
reformat in either case. Note that DVD+RW re-formatting procedure does not
substitute for blanking. If you want to nullify the media, e.g. for privacy
reasons, do it explicitly with 'growisofs -Z /dev/scdN=/dev/zero'.
Otherwise just write over previous recording as it simply wasn't there, no
re-formatting is required.

growisofs -dvd-compat -Z /dev/cdrom -R -J -V file directory

Looks OK.

--
"A personal computer is called a personal computer because it's yours,
Anything that runs on that computer, you should have control over."
Andrew Moss, Microsoft's senior director of technical policy, 2005
.

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