Just a quick post of how to update a low memory system by ssh.

I couldn't upgrade using the panel as I kept running out of memory and receiving some obscure message. I used the following method to update using command line. Basically I killed all the services and ran the update on my 512mb system.

/etc/init.d/psa stopall

/etc/init.d/mysqld start

/usr/local/psa/admin/sbin/autoinstaller