Hi,

Arnold Krille wrote on 2011-09-04 01:11:12 +0200 [Re: [BackupPC-users] Backing 
up slash partition]:
> On Sunday 04 September 2011 00:08:38 Holger Parplies wrote:
> > Arnold Krille wrote on 2011-09-03 01:32:15 +0200 [Re: [BackupPC-users] 
> Backing up slash partition]:
> > > You should make sure you don't cross mount-points though. Otherwise the
> > > backup of localhosts '/' will recurse into itself.
> > 
> > How that?
> 
> Backing up / (including /var/lib/backuppc/pc) into 
> /var/lib/backuppc/pc/localhost. Unless you exclude that dir by excludes or --
> one-filesystem (given that dir is on another partition) this results in a 
> recursion.

that only happens in the unusual case of backing up the BackupPC server itself
(where backing up everything from / is a particularly bad idea). And the real
problem is not the recursion - excluding /var/lib/backuppc/pc/localhost/new
would eliminate that - it's backing up the pool as data into itself. Either
you've got the pool, then you don't need a backup of it, or you haven't, then
you also haven't got the backup. In a way, that's an implementation of
write-only memory, and a practical demonstration why exponential growth
isn't sustainable.

Hope that helps.

Regards,
Holger

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