[~] # rdiff-backup /share/MD1_DATA/RAID2/Backup backup@xxx.xxx.xxx.xxx::/home/backup/backup
/opt/lib/python2.6/site-packages/rdiff_backup/SetConnections.py:148: DeprecationWarning: os.popen2 is deprecated. Use the subprocess module.
stdin, stdout = os.popen2(remote_cmd)
sh: 1: rdiff-backup: not found
Fatal Error: Truncated header string (problem probably originated remotely)
Couldn't start up the remote connection by executing
ssh -C backup@xxx.xxx.xxx.xxx rdiff-backup --server
Remember that, under the default settings, rdiff-backup must be
installed in the PATH on the remote system. See the man page for more
information on this. This message may also be displayed if the remote
version of rdiff-backup is quite different from the local version (1.2.8).