I have a Dapper system that has been working well for 3 months, The system is on auto-update. uname -a :
Linux grubby 2.6.15-28-386 #1 PREEMPT Tue Mar 13 20:49:31 UTC 2007 i686 GNU/Linux
This system is used to colpile a huge application - takes around 3 hours (SL client) - and has been working well until yesterday, when an update arrived. I allowed the update install.
Since then any compile is crashing at about 1 hour into compile. First the screen goes blank and the kb unresponsive, though the disk runs like the compile is proceeding. After 5 to 10 minutes the machine shuts down.
On normal reboot it dies at 'Mounting Root Filesystem' - the screen goes corrupted and then blank.
Booting in recovery mode produces a ton of messages, A possible interesting one is something like 'INFO recovery required on root filesystem.' Recovery runs,,, I exit at the prompt and get a good login screen. I can then shut down and reboot normally ok.
I have been through this compile-crash-recovery loop several times now, it is 100% reproducable. I am suspecting that yesterday's update changed something critical. That update was probably distributed on May 19th 2007, but *may* have been released in the previous week. On the evening of the 18th the machine did compiles well, and no update had been presented.
What I lack is the knowledge of where in Ubuntu to trace the cause of the crash, or recovery, or what that update was and possibly how to roll it back.