Crashed: Booting not complete.

[H S Rai <hsrai@gndec.ac.in>]

Due to UPS problem (as it looks), Debain loaded PC crashed. 
It's booting process is not completeing.It starts and 
complaint as:

Starting Munin-node: Could not open log file 
/var/log/munin/munin-node.log

Checking for crashed MySQL tables in the background.

Starting openGroupware.org server 
instance:/etc/rc2.d/S20 opengroupware.org: line 59: 2242 
segmantation fault,

and then it hangs, not proceeding further.

Please help me to recover it. How to skip applications 
causing trouble, booting in a minimum way, and then how to 
make it functional.

Thanks in advance.

-- 
H.S.Rai