Volker Armin Hemmann wrote:
On Donnerstag 31 Dezember 2009, Dale wrote:
Marcus Wanner wrote:
On 12/30/2009 8:04 PM, Neil Bothwick wrote:
On Wed, 30 Dec 2009 09:12:29 -0500, Marcus Wanner wrote:
I had to hard reset the
system and look at the logs. The only problem was that the logs had the
wrong contents because they had been "written to" but not actually
flushed to the disk, and it took me about 10 hard resets to figure that
out.
Another reason to you the magic sysrq keys instead of the reset button.
S syncs your filesystems.
sysrq syncs the filesystem? I always wondered what that key actually
did...
Wait, to get sysrq is Shift+printscreen, right?
Marcus
This is from a post by Neil a good long while back:
Hold down Atl, hold down SysRq, press each of the keys in turn. The usual
full sequence is R-E-I-S-U-B
Reboot
Even
If
System
Utterly
Broken
I usually only get to the second or third key and I am back at a console.
and sometimes K is all you need.
Thank god for /usr/src/linux/Documentation
This was posted by Volker a while back.
e sends TERM to all processes (except init)
i kills all processes (except init)
s syncs partitions
u remounts everything ro
b boots a box
o turns off a box
k saks a box - kills all processes on that vt
That tells what each key does. I'm still not sure which one took me back to a
console. It may be the E key that does it.
Dale
:-) :-)
r unraws the keyboars - takes it away from X.
