Hi,

Ghislain wrote on 2011-07-21 13:38:22 +0200 [[BackupPC-users] Backing up localhost nfs share with rsync]:

[...]
----------------------------------------backupserver.mydomain.com.pl--------------------------------------------
# include default config
do '/etc/backuppc/config.pl';

unrelated to your problem, but this is pointless. The global config is
included anyway. You can use 'do ...' to include a config for a group of hosts
(e.g. "do '/etc/backuppc/all_my_servers.pl';"), but for the global config this
is meaningless.

#
# Path to rsync executable on the client
#
$Conf{RsyncClientPath} = '/usr/bin/sudo -n /usr/bin/rsync';

This is wrong, as you see in the error message. The RsyncClientPath is
/usr/bin/rsync. The sudo comes into the game in RsyncClientCmd.
As a side note, the '-n' option to sudo is sort of pointless. You need to
configure sudo correctly. '-n' just makes it fail in a perhaps more obvious
way. Adding the '-n' is sort of saying "I'm expressly preparing for this to be
wrong". Use it for debugging, but then remove it (well, my opinion).

[...]
# rsync client commands
$Conf{RsyncClientCmd}           = '$rsyncPath $argList+';

$Conf{RsyncClientCmd} = '/usr/bin/sudo $rsyncPath $argList';

Note that I removed the '+'. sudo does *not* add an additional shell level, so
you don't want extra quoting.

$Conf{RsyncClientRestoreCmd}    = '$rsyncPath $argList+';

Same here. Add 'sudo', remove '+'.

  have the error  "/Fatal error (bad version): Exec failed for 
/usr/bin/sudo -n /usr/bin/rsync/..." :
[...]
full backup started for directory / (baseline backup #8)
started full dump, share=/
Running: /usr/bin/sudo\ -n\ /usr/bin/rsync --server --sender 
--numeric-ids --perms --owner --group -D --links --hard-links --times 
--recursive --checksum-seed=32761 --protocol=28 --ignore-times . /

You likely don't have a command 'sudo -n /usr/bin/rsync' in /usr/bin, or
rather, you probably don't have a directory 'sudo -n ' in /usr/bin, which
in turn contains 'rsync' within subdirectories 'usr/bin'.

The incorrect escaping is due to the fact that you specified RsyncClientPath
incorrectly above.

Apart from that, everything looks good.

Hope that helps.

-- 

Cordialement,
Ghislain