Estimados,
Necesito respaldar pcs con ubuntu 11.04 y con windows 7 utilizando backuppc.

Tengo instalado backuppc en centos y funciona perfectamente para respaldar computadores con windows xp, utilizando rsyncd.

Pero al respaldar pcs ubuntu, me sale el siguiente error:

en la interfaz grafica:
* This PC is used by Ubuntu.
* Last status is state "idle" (backup failed) as of 7/13 14:36.
* Last error is "Child exited prematurely".
* Pings to 192.168.0.193 have succeeded 24 consecutive times.
* Because 192.168.0.193 has been on the network at least 7 consecutive times, it will not be backed up from 9:00 to 17:00 on Mon, Tue, Wed, Thu, Fri.

Y en los logs

Remote[1]: rsync: opendir "ADMINISTRACION DE SERVICIOS" (in documentos) failed: Permission denied (13)
Remote[1]: rsync: opendir "CLINICA" (in documentos) failed: Permission denied (13)
Remote[1]: rsync: opendir "CODIGO COMUN NUEVA" (in documentos) failed: Permission denied (13)
Remote[1]: rsync: opendir "reem" (in documentos) failed: Permission denied (13)
Remote[1]: rsync: opendir "MEMOS 2011" (in documentos) failed: Permission denied (13)

Tengo configurado el archivo /etc/rsyncd.conf y /etc/rsyncd.secrets, tambien habilite el servicio en el archivo /etc/default/rsync

Genere las claves en el servidor de la siguiente manera en el equipo a respaldar:
ssh root@equipo mkdir -m 0700 ~/.ssh
ssh root@equipo touch ~/.ssh/authorized_keys
ssh root@equipo chmod 600 ~/.ssh/authorized_keys

cat id_dsa.pub > authorized_keys

En la interfaz web se le agrego al usuario de ubuntu, pero no me respalda.

Con windows 7 tengo los siguientes errores:

* This PC is used by Win7.
* Last status is state "idle" (backup failed) as of 7/13 14:06.
* Last error is "failed to open lock file".
* Pings to 192.168.0.154 have succeeded 10 consecutive times.
* Because 192.168.0.154 has been on the network at least 7 consecutive times, it will not be backed up from 9:00 to 17:00 on Mon, Tue, Wed, Thu, Fri.

En los logs
Contents of file /var/lib/backuppc/pc/192.168.0.154/XferLOG.bad.z, modified 2011-07-13 10:27:54

full backup started for directory carlos
Connected to 192.168.0.154:873, remote version 29
Negotiated protocol version 28
Error connecting to module carlos at 192.168.0.154:873: failed to open lock file
Got fatal error during xfer (failed to open lock file)
Backup aborted (failed to open lock file)
Not saving this as a partial backup since it has fewer files than the prior one (got 0 and 0 files versus 0)

El servidor es Centos 5.4

A la espera de su ayuda.

Saludos