Jose Torres wrote:
> This is the default backuppc tar command: 
> $sshPath -q -x -n -l root $host env LC_ALL=C $tarPath -c -v -f - -C
> $shareName+ --totals
> 
> I had this:
> usr/bin/sudo $tarPath -c -v -f - -C $shareName --totals

This should have been in the per-pc config for the server host.  Or 
(better) done  in the web 'edit config' for the server host only.

> I was missing that the $shareName parameter needed to be change to a NFS
> mount from the network computer to be backup (serverv2v2) corresponding to
> the remote '/' mount on the backuppc server (server2).  This way the changed
> tar command would have backup the correct data instead of the local '/'.
> The mount had to be made with the root credentials so as to have read all
> access, and mapped to the backuppc user to inherit the read all access on
> the backup server.  The mount could be done a permanent mount or can be made
> DumpPreShareCmd/DumpPostShareCmd so as make and remove the mount during
> backup. 
> 
> Another way to solve it is to make the tar command back at default
> (more/less):
> $sshPath -q -x -n -l root $host env LC_ALL=C $tarPath -c -v -f - -C
> $shareName --totals
> 
> I did this and it worked fine now. The thing will be that we need to use ssh
> with root user which can become a security breach.

You should probably consider using rsync over ssh for the remote 
machine(s) because it has several advantages over tar.   As for 
security, there are some things you can do to limit ssh access.  If the 
machine is internet-exposed you should make sure that password based 
access is disabled - and you can restrict the commands that can be 
executed or even connect as a different user and add a sudo layer to run 
the backup.   But mostly you have to be very careful about access to the 
private key on the backuppc server so no one can copy it.  If password 
access is off, someone must have the private side of the key to connect.

-- 
   Les Mikesell
     lesmikesell AT gmail DOT com

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