Magic SysRq [was Re: X ignores keyboard and mouse input, but shows cursor movement (etch)]
On 09/14/2007 07:24 PM, Andrew Sackville-West wrote:
> just a word to the wise when dealing with these issues... magic sysrq
> key, be sure to google it. The two that are most useful, to me anyway,
> are
>
> Alt-sysrq-s to sync the filesystems (you'll see your drive light come
> on briefly and you;ll get a console message if you happen to be in
> one.)
>
> alt-sysrq-b to reboot.
This is new to me; never knew what that key did!
Etch has sysrq enabled. However, the security implications should be
documented. SysRq isn't even mentioned in securing-debian-howto. It's
mentioned incorrectly as "default installation kernels are not compiled
with this option" in debian reference (
http://qref.sourceforge.net/).
Regards,
Ralph
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