Cobalt RaQ: Main partition almost full!!

I'm preparing a RaQ 4r with the original Cobalt OS with all the updates (including Zeffie's ones). Everything worked good except the update called Security-Update-4.4.8. The web installer returned "4015 Problem verifying package component". A manual installation said the same...

Then I unpacked all the rpms and tried to check using the same command than the installer script but without redirecting the console outut to /dev/null. The log shown what I have space problems in the main partition: 178 MB were not enough!!!

The solution is easy to understand: I have to clean as much as posible but What Can I trash?. /tmp and the logs were not so much... Finally the solution was to move something to the big /home partition and make a sym link. After a fast search, only the /usr/doc folder is easy to move without problems:

[root] # mkdir /home/usr/
[root] # mv /usr/doc /home/usr/doc
[root] # ln -s /home/usr/doc /usr/doc

Now to follow with the updates...