| View previous topic :: View next topic |
| Author |
Message |
iceland
n00b
Joined: 14 May 2004
Posts: 6
Location: reykjavik
|
 Posted: Fri May 14, 2004 8:00 pm Post subject: Installing new kernel without reboot? |
 |
|
Is it possible to install a new kernel without doing a hard reboot?
Like... the old kernel shutting itself down, closing all apps, and then instead of rebooting just telling the system to execute the new kernel? |
|
| Back to top |
|
 |
eNTi
Veteran
Joined: 20 Oct 2002
Posts: 1011
Location: Salzburg, Austria
|
| Posted: Fri May 14, 2004 8:04 pm Post subject: |
|
|
iirc, no.
_________________
If you fall off a cliff, you might as well try to fly. After all, you got nothing to lose.
-- John Sheridan - Babylon 5, Season 4 |
|
| Back to top |
|
|
andrewy
l33t
Joined: 07 Apr 2004
Posts: 602
|
| Posted: Fri May 14, 2004 8:07 pm Post subject: |
|
|
Short answer: Nope.
Long answer: I remember seeing an article about this somewhere, but I don't think it would be worth the trouble. |
|
| Back to top |
|
|
Gentree
Watchman
Joined: 01 Jul 2003
Posts: 5350
Location: France, Old Europe
|
| Posted: Fri May 14, 2004 8:45 pm Post subject: |
|
|
It;s trure this would be handy.
I have to reboot to get back to console after X becasue my nvidia driver seems to dump on the frame buffer.
It would save quite a bit of time if I could reboot from grub rather than rebooting the BIOS.
I'm playing with a few X settings and everytime something does not work I need to reboot. Looong.
Would also be nice to get my console back without rebooting of course but so far no ideas have come forward on that one.
 |
|
| Back to top |
|
|
ipower
Tux's lil' helper
Joined: 07 Jan 2004
Posts: 120
|
| Posted: Fri May 14, 2004 8:48 pm Post subject: |
|
|
| You Must reboot. |
|
| Back to top |
|
|
Wedge_
Advocate
Joined: 08 Aug 2002
Posts: 3614
Location: Scotland
|
| Posted: Fri May 14, 2004 8:49 pm Post subject: |
|
|
| iceland wrote: | | Like... the old kernel shutting itself down, closing all apps, and then instead of rebooting just telling the system to execute the new kernel? |
There is a kernel patch called kexec that is intended to allow you to do that kind of thing, but I think it's still pretty far away from being ready for general use. It can be made to work at the moment with some effort, but it's really not worth the trouble.
_________________
Per Ardua Ad Astra
The Earth is the cradle of the mind, but we cannot live forever in a cradle - Konstantin E. Tsiolkovsky
Gentoo Radeon FAQ |
|
| Back to top |
|
|
darksbane
n00b
Joined: 15 Apr 2004
Posts: 28
Location: Fredonia, NY
|
| Posted: Fri May 14, 2004 9:51 pm Post subject: Re: Installing new kernel without reboot? |
|
|
| iceland wrote: | | Like... the old kernel shutting itself down, closing all apps, and then instead of rebooting just telling the system to execute the new kernel? |
If you have to close all apps to start a new kernel, is there a reason to want to not reboot? I could see this being useful from an uptime standpoint, if you had services that had to stay going.
_________________
:wq |
|
| Back to top |
|
|
Hayl
Guru
Joined: 28 Jan 2003
Posts: 442
Location: Calgary, Alberta, Canada
|
| Posted: Sat May 15, 2004 2:10 pm Post subject: |
|
|
i think kexec resets your uptime iirc because init gets restarted when the new kernel loads. i think the only benefit of the kexec is that you don't have to go through the POST which isn't really a benefit imho as the post only takes a few seconds anyway. i suppose it woudl be useful on some large server that took an age to POST??
_________________
"I do not fear computers. I fear lack of them." - Isaac Asimov |
|
| Back to top |
|
|
|
Kernel & Hardware
