On Monday, April 21, 2008 at 6:32 PM, Joshua Frankamp wrote:
Is there a resource for CentOS for things to do before a hard reboot?
My situation is apparently an out of memory condition where I am seeing fatal 'oops' output all over the place, Ctrl-Alt-F3 (for example) new console login attempts will accept credentials and then never get to a login prompt. Remoting in is just as useless. I cannot therefore use any of the standard restart commands, since I cannot enter commands.
By default in CentOs (and on my machine) Alt- SysRq is disabled.
Do I have any other options before hard resetting the box?
Thanks,
- Joshua
A quick press of the on/off switch initiates an orderly shutdown on most modern systems.
Probably more reliable, from a console (logged in or not), the universal window$ repair procedure ([Alt][Ctrl][Del]) initiates an orderly reboot (init 6). If it appears to be ineffective, it can be repeated multiple times to trigger the reboot. Again, the result is the same you would expect from typing "init 6".
Given what you have described, you may need to wait a while for either approach to be effective.
Steve