;hard" shutdown is
> >> almost never necessary. You can send various low-level commands to your
> >> kernel using the "SysRq" Key [1], which will allow you to reboot a
> >> computer without corrupting the filesystem.
> >
> >Nope, this didn&
ommands to your
>> kernel using the "SysRq" Key [1], which will allow you to reboot a
>> computer without corrupting the filesystem.
>
>Nope, this didn't work on my panic-ed kernel.
Yes, the "Magic" SysRq is handled entirely[1] within the kernel, but if y
On 8/17/09, Wolodja Wentland wrote:
> I can't really help you with your problem, but a "hard" shutdown is
> almost never necessary. You can send various low-level commands to your
> kernel using the "SysRq" Key [1], which will allow you to reboot a
> computer without corrupting the filesystem.
Liviu Andronic a écrit :
> Hello,
>
> On 8/18/09, thveillon.debian wrote:
>> I recently bought a HP 6730s with a ATI Mobility Radeon HD 3430 graphic
>> chip. I run Squeeze/Sid AMD64 just like you, and with 2.6.26* kernel and
>> the associated fglrx I ran into all kind of troubles: impossibilit
Hello,
On 8/18/09, thveillon.debian wrote:
> I recently bought a HP 6730s with a ATI Mobility Radeon HD 3430 graphic
> chip. I run Squeeze/Sid AMD64 just like you, and with 2.6.26* kernel and
> the associated fglrx I ran into all kind of troubles: impossibility to
> switch between virtual con
Liviu Andronic wrote:
> (Sorry for the long re-naming, but I fell the thread should get its
> proper name as the issue evolves)
>
> On 8/17/09, Wolodja Wentland wrote:
>> and voilà the system reboots and your data is as safe as possible.
>>
> Thank you, I completely forgot about this one. Two is
(Sorry for the long re-naming, but I fell the thread should get its
proper name as the issue evolves)
On 8/17/09, Wolodja Wentland wrote:
> and voilà the system reboots and your data is as safe as possible.
>
Thank you, I completely forgot about this one. Two issues though:
1. In an older discus
On Mon, Aug 17, 2009 at 14:41 +0100, Liviu Andronic wrote:
[ ... ]
> meaning that I have to resort to using the hard-halt via the power
> button. Rebooting/Halting from Xfce works as expected (and it didn't
I can't really help you with your problem, but a "hard" shutdown is
almost never necessary
2009/4/28 Brad Rogers :
> On Tue, 28 Apr 2009 02:01:44 +0300
> Dotan Cohen wrote:
>
> Hello Dotan,
>
>> Alt-SysRq-[R,S,E,I,S,U,B] in that order.
>
> Why "S" twice? Or just a mistake?
>
As can bee seen in Abhishek's posted link, there is debate as to where
in the processes should the disks be syn
On Mon, Apr 27, 2009 at 11:47 PM, Brad Rogers wrote:
> Why "S" twice? Or just a mistake?
Probably overkill. Habits die hard, and for instance 'sync;sync;sync'
is probably engrained into the fingers of many a Unix admin, but it's
probably overkill.
Reminds me of that line from Kitchen Table So
On Tue, 28 Apr 2009 02:01:44 +0300
Dotan Cohen wrote:
Hello Dotan,
> Alt-SysRq-[R,S,E,I,S,U,B] in that order.
Why "S" twice? Or just a mistake?
--
Regards _
/ ) "The blindingly obvious is
/ _)radnever immediately apparent"
Junk floats on polluted water
H
On Tue, Apr 28, 2009 at 4:31 AM, Dotan Cohen wrote:
> 2009/4/27 green :
>> Erik Xavior wrote at 2009-04-27 09:58 -0600:
>>> I recently read about "Magic SysRq"! wow :)
>>>
>>> # sysctl -a | grep sysrq
>>> kernel.sysrq = 1
>&g
2009/4/27 green :
> Erik Xavior wrote at 2009-04-27 09:58 -0600:
>> I recently read about "Magic SysRq"! wow :)
>>
>> # sysctl -a | grep sysrq
>> kernel.sysrq = 1
>>
>> But it doesn't reboot, when i press "AltGr+sysrq+b",
Le Monday 27 April 2009 17:58:10 Erik Xavior, vous avez écrit :
> Hi
>
> I recently read about "Magic SysRq"! wow :)
>
> # sysctl -a | grep sysrq
> kernel.sysrq = 1
>
> But it doesn't reboot, when i press "AltGr+sysrq+b", what am I missing? :S
>
Erik Xavior wrote at 2009-04-27 09:58 -0600:
>I recently read about "Magic SysRq"! wow :)
>
># sysctl -a | grep sysrq
>kernel.sysrq = 1
>
>But it doesn't reboot, when i press "AltGr+sysrq+b", what am I missing? :S
>2.6.26-2-amd64
Hi
I recently read about "Magic SysRq"! wow :)
# sysctl -a | grep sysrq
kernel.sysrq = 1
But it doesn't reboot, when i press "AltGr+sysrq+b", what am I missing? :S
2.6.26-2-amd64
Thank you!
On Wed, Sep 19, 2007 at 09:56:35AM -0700, Andrew Sackville-West wrote:
> your point is that an undocumented method of rebooting the computer is
> a security issue not because of the rebooting but because of the lack
> of documentation of a method of rebooting. I agree. you are right to
> report t
On Tue, Sep 18, 2007 at 06:05:05PM -0400, Ralph Katz wrote:
> On 09/18/2007 05:17 PM, David Brodbeck wrote:
> >
> > On Sep 18, 2007, at 11:19 AM, Ralph Katz wrote:
> >> This is a local vulnerability, yes. No worse than pulling the plug. Of
> >> course that IS the problem. Only keyboard access i
On 09/18/2007 05:17 PM, David Brodbeck wrote:
>
> On Sep 18, 2007, at 11:19 AM, Ralph Katz wrote:
>> This is a local vulnerability, yes. No worse than pulling the plug. Of
>> course that IS the problem. Only keyboard access is needed for this.
>>
>> To test, I booted a second etch computer whic
On Sep 18, 2007, at 11:19 AM, Ralph Katz wrote:
This is a local vulnerability, yes. No worse than pulling the
plug. Of
course that IS the problem. Only keyboard access is needed for this.
To test, I booted a second etch computer which comes up to a gnome
desktop, and hit alt-sysrq-i. The
ord 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 09/18/2007 01:12 PM, Andrew Sackville-West wrote:
> On Sun, Sep 16, 2007 at 09:06:49AM -0400, Ralph Katz wrote:
>> 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 su
On Sun, Sep 16, 2007 at 09:06:49AM -0400, Ralph Katz wrote:
> 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,
> > a
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 c
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Sat, Mar 22, 2003 at 03:11:54AM +0100, Michael Naumann wrote:
> According to /usr/src/kernel-source-2.4.18/Documentation/sysrq.txt
> I have to set CONFIG_MAGIC_SYSRQ when configuring the kernel to
> enable this feature.
>
> Yet, I do not find this
On Saturday 22 March 2003 03:42, nate wrote:
> Michael Naumann said:
> > According to /usr/src/kernel-source-2.4.18/Documentation/sysrq.txt I have
> > to set CONFIG_MAGIC_SYSRQ when configuring the kernel to
> > enable this feature.
> >
> > Yet, I do not find this key in .config nor under "make men
Michael Naumann wrote:
According to /usr/src/kernel-source-2.4.18/Documentation/sysrq.txt
I have to set CONFIG_MAGIC_SYSRQ when configuring the kernel to
enable this feature.
Yet, I do not find this key in .config nor under "make menuconfig".
Any hint what I'm missing here?
TIA, Michael
It's un
Michael Naumann said:
> According to /usr/src/kernel-source-2.4.18/Documentation/sysrq.txt I have
> to set CONFIG_MAGIC_SYSRQ when configuring the kernel to
> enable this feature.
>
> Yet, I do not find this key in .config nor under "make menuconfig".
>
> Any hint what I'm missing here?
it's in th
said Michael Naumann (on 2003-03-22),
> According to /usr/src/kernel-source-2.4.18/Documentation/sysrq.txt
> I have to set CONFIG_MAGIC_SYSRQ when configuring the kernel to
> enable this feature.
>
> Yet, I do not find this key in .config nor under "make menuconfig".
Look under "Kernel Hacking",
According to /usr/src/kernel-source-2.4.18/Documentation/sysrq.txt
I have to set CONFIG_MAGIC_SYSRQ when configuring the kernel to
enable this feature.
Yet, I do not find this key in .config nor under "make menuconfig".
Any hint what I'm missing here?
TIA, Michael
--
To UNSUBSCRIBE, email to
On Sat, Aug 25, 2001 at 10:12:06AM +0700, A. Didit Mifanto wrote:
> Dear Debian User:
>
> What is the meaning of Magic SysRq key in the kernel hacking config?
>
See your linux-src-root/Documentation/sysrq.txt
Hope that helps.
> Thanks
>
> Didit
>
>
>
A. Didit Mifanto wrote:
Dear Debian User:
What is the meaning of Magic SysRq key in the kernel hacking config?
Thanks
Didit
http://lxr.linux.no/source/Documentation/sysrq.txt
"It is a 'magical' key combo you can hit which kernel will respond to
regardless of what
Dear Debian User:
What is the meaning of Magic SysRq key in the kernel hacking config?
Thanks
Didit
want to mess
with the packaging system.
> Has it always been the case that /proc/sys/kernel/sysrq could disable
> the magic sysrq key?
This is new in 2.4, AFAIK.
> I've heard some consider the sysrq key a security
> hole, but if it can be disabled then there's no big deal.
To
Cyan Ogilvie wrote:
>
> On Fri, Aug 24, 2001 at 12:53:26AM +0200, thomas wrote:
> > > Is there a way to enable the magic SysRq key without compiling a custom
> > > kernel?
> > > Why is it not built in the Debian kernel? If policy demands that it
> > > sho
On Fri, Aug 24, 2001 at 12:53:26AM +0200, thomas wrote:
> > Is there a way to enable the magic SysRq key without compiling a custom
> > kernel?
> > Why is it not built in the Debian kernel? If policy demands that it
> > should be disabled by default then this could be done
> Is there a way to enable the magic SysRq key without compiling a custom
> kernel?
> Why is it not built in the Debian kernel? If policy demands that it
> should be disabled by default then this could be done via proc during
> the boot process.
I don't see any reason why
On Thu, Aug 23, 2001 at 10:43:30PM +0200, Walter Hofmann wrote:
> Is there a way to enable the magic SysRq key without compiling a custom
> kernel?
> Why is it not built in the Debian kernel? If policy demands that it
> should be disabled by default then this could be done via proc
Is there a way to enable the magic SysRq key without compiling a custom
kernel?
Why is it not built in the Debian kernel? If policy demands that it
should be disabled by default then this could be done via proc during
the boot process.
Walter
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