Tyler J. Wagner napsal(a):
> On Tue, 2010-11-09 at 12:41 +0100, Pavel Hofman wrote:
>> Thanks a lot for your suggestion. In fact we use the PreDumpUserCmd to
>> lock the backed-up machines to disable shutdown while the backup is in
>> progress. You are right, it will work. Though IMHO it is an "unpretty"
>> workaround :-) , especially because the PreDumpUserCmd does not support
>> multiple commands and everything must but put to scripts instead.
> 
> You can put multiple command in. Here is mine, which sends a passive OS
> dialog using kdialog (which works fine with Gnome too) to tell the users
> that a backup is starting.:
> 
> $sshPath -q -x -l root $host su `/bin/echo $user | /bin/sed 's/@.*//'`
> -c "/usr/bin/kdialog --display :0 --title \"BackupPC on backuppc.local\"
> --passivepopup \"Beginning $type backup on $client  at `/bin/date +'%Y-%
> m-%d %T %Z'`\""
> 
> If you can pipe, you can &&.
> 
> Regards,
> Tyler

Tyler,

Thanks for your help. Your setup still runs only one command on the
backuppc server - ssh with params. In the same way I could run bash -c
"multiple commands" but figuring out all the doublequotes and backslahes
takes a lot of trying and is not pretty. The source code says something
about accepting perl code in that config parameter but I did not figure
out how it works.

Still, using PreDumpUserCmd for graceful shutdown is a clever but
"unpretty" workaround :-)

Regards,

Pavel.



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