[EMAIL PROTECTED] writes:
> I have a need to wake up some Windows PC's at night to backup so as to
> reduce network traffic during the day. I am using SMB.
>
> So far, my conf.pl has the $Conf{DumpPreUserCmd} pointing to a script
> that wakes up the PC and then sleeps for 2 minutes. This script works
> from the command line just fine under the same user that backuppc runs
> as. However, when I try to use it within backuppc, it comes back with
> this error:
>
> "Can't find host [hostname] via netbios".
>
> The DumpPreUserCmd does not even seem to run.
>
> The DumpPostUserCmd runs just fine, and when I kick off a backup
> when the machine is already on, the backup finishes and the PC
> turns itself off.
The problem is that DumpPreUserCmd is run after the machine's
ip address is looked up via netbios. BackupPC_dump needs to
find the ip address first. It tries DNS first. Failing that,
it runs $Conf{NmbLookupFindHostCmd}. After that it runs
$Conf{PingCmd}. If that passes, just before the dump starts
it runs $Conf{DumpPreUserCmd}.
You can either put your IP address in DNS (and disable $Conf{PingCmd}
by setting it to, eg, /bin/true).
Or another solution is to move your script from $Conf{DumpPreUserCmd}
to $Conf{NmbLookupFindHostCmd}. The end of your script should run
the original $Conf{NmbLookupFindHostCmd} command (after the power up
is done). Since BackupPC_dump parses the output of
$Conf{NmbLookupFindHostCmd} to find the IP address, be careful that
your script doesn't generate extra output that confuses the parsing.
Craig
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