Howto do SSH / rsync backup to a Maxtor OpenMSS

You have a Maxtor Maxtor Shared Storage and want to use it as an energy efficient backup server. You do not want to use SAMBA. Rsync (or eg faubackup is much better).

The problem

open MSS has SSH (dropbear) and rsync installed. But you want to have automatically remote SSH login. And the rootfs is readonly (cramfs), so where to put you keys?

The solution

Of cource first install OpenMMS on you Maxtor storage.
Log on to your Maxtor as root
create a new user, eg "bu" adduser bu
Edit /etc/passwd to change the userid for bu to 0 and the home director to something writable, like /opt/home/bu
Create the home dir for bu: mkdir -p /opt/home/bu
Now log in to the server, you want to make the backup from, and copy your key to the MSS: ssh-copy-id -i .ssh/id_dsa.pub bu@mssBackupServewr
You are done and can now rsync: rsync -av --rsh=ssh --rsync-path=/opt/bin/rsync /home bu@mssBackupServer

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