From: Holger P. <wb...@pa...> - 2008-12-27 02:54:46
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Hi, Juergen Harms wrote on 2008-12-26 23:46:55 +0100 [Re: [BackupPC-users] BackupPC_link got error -4 when calling?MakeFileLink]: > I fought these messages yesterday. In my case the reason is that topDir > - the directory where the backup data is stored - is a separate > file-system, and that BackupPC has problems dealing with that situation. as Nils said, that is not true. BackupPC has problems with incorrectly changing TopDir. > Googling provided 2 alternative solutions It might not be obvious, but the BackupPC wiki goes into some detail on this topic: http://backuppc.wiki.sourceforge.net/change+archive+directory > (there appears to be quite an epidemy of people suffering from this problem): There appears to be quite an epidemy of people not consulting the wiki. > 2. Use the --bind option of mount (the Google reference suggests -o > bind, I guess another and probably obsolete flavour of --bind, not > documented on my Mandriva platform). [...] > this is done by adding to your /etc/fstab - I placed it > directly after the "mount /dev/xxx /backup ..." instruction - the > following line: > > /backup /var/lib/backuppc none rw,bind 0 0 This is actually an example of the "probably obsolete flavour of --bind, not documented on my Mandrive platform". But it's correct and will hopefully continue to be so. > with the result that the 2 mount points get mounted at boot time. I also > changed owner and group of /backup to the backup user - but there I am > less sure how correct or imperative that is. Well, you can't change the group to the backup user ;-), but it's correct and I'd say at least recommended too. Once the directories under $TopDir are in place, the backuppc user should not need to create any, but you never know what directories future versions of BackupPC might want to put there. > I read that a new release (3.1.1) of backuppc is being prepared - short > of fixing this problem, it might be a good idea to add a couple of words > to the documentation, warning about this restriction in the > configurability of the topDir variable. I believe there *is* a warning in the documentation (though I admit I can't find it right now), and I believe it *will be* fixed in 3.1.1, of which I haven't heard that it is being prepared, though. Regards, Holger |