BackupPC-users

Re: [BackupPC-users] Discrepant file size reports of backups

2009-10-16 11:36:18
Subject: Re: [BackupPC-users] Discrepant file size reports of backups
From: Tino Schwarze <backuppc.lists AT tisc DOT de>
To: backuppc-users AT lists.sourceforge DOT net
Date: Fri, 16 Oct 2009 17:33:35 +0200
On Fri, Oct 16, 2009 at 05:16:57PM +0200, Cesar Kawar wrote:

> > sd AT pm7 DOT ch wrote on 2009-10-16 02:05:07 -0700 [Re: [BackupPC-users]  
> > Discrepant file size reports of backups]:
> >> [...]
> >> Both directories are in the same filesystem and the path was most  
> >> likely
> >> changed right after the installation.
> >
> > /var/lib/backuppc and /usr/share/backuppc/data ? That would be the  
> > root file
> > system. It's not really a good idea to put your pool on the rootfs.
> >
> >> I don't fully understand why the changed path is a problem in this  
> >> case,
> >
> > Neither do I, but I remember that it *is* a problem. You can have a  
> > link for
> > $TopDir (i.e. $TopDir = '/var/lib/backuppc' and /var/lib/backuppc is a
> > softlink to somewhere), but softlinks below $TopDir don't seem to work
> > (whatever the reason was), even if they remain within one file system.
> 
> I've been using softlink to store BackupPC's storage on other disks  
> and partitions for years with no problems at all.

Note the very important detail: It is SAFE to softlink $TopDir directly,
e.g. have a softlink /var/lib/backuppc which points to
/mnt/somewhere/else.

The actual requirement is: everything below $TopDir needs to be on the
same file system so hardlinks work.

HTH,

Tino.

-- 
"What we nourish flourishes." - "Was wir nähren erblüht."

www.lichtkreis-chemnitz.de
www.tisc.de

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