Managed to mount windows share from command line.
Moved one of the root/var/spool/squid/ folders to the windows share.
It moaned about maintaining the permissions, something about operation not permitted.
Anyway, this finally made some space on /.
rpm the xfs rpm... ok!
Tried xinit and startx and got same old error messages.
Tried starting xfs and it sort of hung with !warning.
Started to think this was a no hoper.
oops forgot to unmount windows share first - box hangs on shutdown.
Hit power switch on box to turn it off.
Count to ten.
Hit power switch on box to turn it back on.
I really thought it was still gonna be screwed up.
Bingo... GUI is back again.
Me... happy again!
1. I still wanna know if I can move / delete all those folders in root/var/spool/squid/ ok???
Most of them are date of crash do I figure they can go.
Two of them are 5 years old so they can go?
2. Likewise, can I delete swap.state? Will linux rebuild it?
I guess I should leave it the hell alone and be happy it works but it is still currently rather low on disk space and I guess the backup will be big until I move the rest of the folders.
THANKS for your help guys!