[S.u.S.E. Linux] 5.1 reboots on CDROM mount (fwd)

Actually, my problem right now is that the system hangs on shutdown, just before the file system is unmounted. The console msgs go something like this: INIT switching to run level 6 INIT sending processes the TERM signal INIT sending processes the KILL signal /sbin/init.d/rc Previous runlevel 2, current 6 Shutting down Apache Shutting down blah blah . . closing all net connections Shutting down routing Shutting down network device eth0 Shutting down PCMCIA services Shutting down kerneld: SIGTERM kerneld Sending all processes the TERM signal The system then hangs without dismounting the root and other file systems Any clues appreciated.