Re: Incremental CDR backups

[Alban Browaeys <albanbrowaeys@oreka.com>]

Le Sun, 26 Oct 2003 19:08:39 -0500, Paul M Foster a écrit :

> mkisofs -r -o /tmp/cdimage -C $NEXTTRACK -M /dev/cdrom /home/paulf/cdrom

you should check, though as i remind you cannot have the same dir name at
the root of the iso9660 image for multisessions. else the first etry with
the nae "/home" is read and other are ignoed (there are tweak to recover
those other sessions even in this case , it s too advanced for me)

from man mkisofs bug section:
o      Does not properly read relocated  directories  in  multi-session
 mode when adding data.

   Any relocated deep directory is lost if the new session does not
   include the deep directory.

   Repeat by: create first session with deep  directory  relocation
   then add new session with a single dir that differs from the old
   deep path.
.. i did not fully get the meaning , anyway it seems to apply too

My bet: use --graft-points mkisofs option to have different root directory
for each sessions:
$DATE=$(date +%Y-%m-%d)
$ mkisofs -r -o /tmp/cdimage -C $NEXTTRACK -M /dev/cdrom \
$DATE-home/paulf/cdrom/=/home/paulf/cdrom