On Thu, May 14, 2009 at 08:07:47AM -0400, Dan Langille wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > I was contacted off-list last night regarding systems where the GID/UID > of the backed up file does not exist when restoring. > > The backup was performed on a system that contained GID/UID entries that > did not exist on the new server. The user reported an issue involving > unexpected chown settings on the restored file set. Specifically, many > files were chown root:wheel where he expected them to be something from > the missing GID/UID values. He has since solved this issue by adding > the missing values to the system and performing the restore again. > > I have not looked at the code. But I see the above characteristics as > the best result. > > My thoughts indicate we have two options in this situation: > > 1 - store GID/UID numeric values, but if those numbers mapped to a > different group/user on restore, that's bad, Very bad. > > 2 - store GID/UID names, so we Do The Right Thing(tm) when restoring. > If the GID/UID is not found, use root defaults (in this case, root:wheel). > > - From the scenario described, I think we do option 2 at present. > > I could not find this point documented anywhere. I'll write something > up about it unless someone points me to existing material. >
Option to restore by numeric uid/gid values would be nice, if it's not possible already atm.. Think about 'disaster recovery' case.. Your server crashes.. to recover you do: - Install new minimal base OS - Install bacula agent - Restore the latest backup using Bacula /etc/passwd won't have user information when the restore is started.. so files will be restored with wrong owner/group.. Restoring with numerical uid/gid would be correct in this case. -- Pasi ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Bacula-devel mailing list Bacula-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-devel
