I combined your e-mails together so I could respond to both of them
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you hear the emegency.sync on a RAID10 device
: i see that if KDE freezes a come back to Login
: you SHOULD NEVER use it alone because you could also use
hardware-reset
osted many times but nobody reads docs people telling:
ttp://en.wikipedia.org/wiki/Magic_SysRq_key
nRaw (take control of keyboard back from X),
tErminate (send SIGTERM to all processes, allowing them to terminate
gracefully),
kIll (send SIGKILL to all processes, forcing them to terminate
immediately),
Sync (flush data to disk),
Unmount (remount all filesystems read-only),
eBoot.
Hold down the Alt and SysRq (Print Screen) keys.
While holding those down, type the following keys in order, several
seconds
apart:
REISUB
Computer should reboot.
=================================================================
> On Tue, 2012-08-21 at 15:27 -0500, Aaron Konstam wrote:
>> Theree seems to be general agreement if you don't include the CTRL
key
>> only a snapshopt is genrqated the function is not executed.
>
> Depends on your user interface... If you're using something like
Gnome,
> it's assigned its own function to ALT and PrintScreen (to
screengrab
the
> current active window), versus PrintScreen (by itself, to
screengrab
the
> whole desktop).
>
> Whereas, at a basic text-only console, it may be ignoring presses of
the
> PrintScreen/SystemRequest key, and pass it along, for something
else
to
> deal with.
>
> The same goes for other hotkeys. Outside of Gnome, for instance, you
> can switch between terminals simply by pressing ALT and one of the
> Function keys. Inside Gnome, it's using those key combinations for
its
> own purposes, so another key sequence is used. Again, adding
CTRL to
> it, does the job.
>
I did all these things in a alt-f2 console (no Gnome). And they still
did not work. I want some one to tell me they hit: cntl+alr+sysrq b
and
got a reboot.
i explained you in my last mail that CTRL+ALT+PRINT+B is plain
stoopid, so nobody will do this - i CONFIRMED multiple
times that STRG+ALT+PRINT+S does a sync, i hear the drives and
i get messages in dmesg, /var/log/messages AND also in a ALT-F2
console independent if there is a login or not, if there is the
login-prompt i get
SysRq : Emergency Sync
Emergency Sync complete
directly below the prompt
===========================================================
When I type ctrl+alt+sysrq+s
I get no sync sound from the disk on either of my two machines
although dmesg tells me one has ocurred.
I have read thew web sitsw content you say no one reads and have
triwewd to follow its instrctions to no effect.
I guess it is a matter of hand size but it is almost impossible for me
to type REISB while holding down ctrl+alt+sysrq on my keyboard. On my
laptop we need to add Fn which makes it even more impossible.
I applaudew any one who can do that as some of oyu say you can.
I have almost finished a python program where you can type:
magic reisb which will make thwe whole process less trying..
As many times before it is counter productive to call someone stupid,
even if you mispell stupid.
I have neve seen a message:
SysRq : Emergency Sync
Emergency Sync complete
in a alt-F2 console.
So I remain confused.
--
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Computers are like air conditioners -- they stop working properly if you
open WINDOWS
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Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam(a)sbcglobal.net