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#1 2010-01-16 20:39:41
- vit
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- Registered: 2008-12-28
- Posts: 79
Reloading kernel without reboot
I've heard couple of times, that in Linux kernel can changed without the actual reboot.
Today googled a bit, but still can't actual state of this feature. Does anybody know about it? or may be someone have tried and have experience of doing it?
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#2 2010-01-16 21:03:17
- roy_hu
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- Registered: 2009-10-29
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Re: Reloading kernel without reboot
I've heard of this kexec thing, but never tried it. You may use kexec as the keyword for searching.
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#3 2010-01-16 21:39:49
- mikesd
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- From: Australia
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Re: Reloading kernel without reboot
I hadn't heard of kexec before. Sounds interesting. A similar project is ksplice[1] which allows you to apply kernel updates without rebooting.
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#4 2010-01-16 22:18:18
- Skoll
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- Registered: 2009-09-23
- Posts: 36
Re: Reloading kernel without reboot
Weren't some parts of these technologies patented by Microsoft?
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#5 2010-01-16 22:39:07
- mikesd
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#6 2010-01-17 06:46:35
- vit
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- Registered: 2008-12-28
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Re: Reloading kernel without reboot
I found ksplice package in AUR, but most info I've found in internet, is about nonfree ksplice software.
And kexec is a kind of fast reboot. It's a bit different.
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#7 2010-01-17 06:54:22
- roy_hu
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- Registered: 2009-10-29
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Re: Reloading kernel without reboot
Weren't some parts of these technologies patented by Microsoft?
Yes, there's rumors about that. Google ksplice lwn patent.
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#8 2010-01-17 06:56:11
- roy_hu
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- Registered: 2009-10-29
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Re: Reloading kernel without reboot
I hadn't heard of kexec before. Sounds interesting. A similar project is ksplice[1] which allows you to apply kernel updates without rebooting.
I believe it only has native support for Ubuntu. On Arch I'll simply do pacman -Syu and reboot.
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#9 2010-01-17 12:14:47
- forkboy
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- From: Blackpool, England
- Registered: 2005-09-03
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Re: Reloading kernel without reboot
The latest opensuse uses kexec instead of rebooting during the installation, you can install the whole system in one go and be at your desktop without any reboots.
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#10 2010-01-17 12:35:09
- Ramses de Norre
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- From: Leuven - Belgium
- Registered: 2007-03-27
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Re: Reloading kernel without reboot
http://wiki.archlinux.org/index.php/Kexec
http://www.ibm.com/developerworks/linux … kexec.html
Last edited by Ramses de Norre (2010-01-17 12:35:40)
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#11 2010-07-26 05:25:14
- martin77
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- Registered: 2010-03-14
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Re: Reloading kernel without reboot
This is a very interesting discussion, thanks Ramses for the links.
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#12 2010-07-26 07:49:19
- ngoonee
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- From: Between Thailand and Singapore
- Registered: 2009-03-17
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Re: Reloading kernel without reboot
This is a very interesting discussion, thanks Ramses for the links.
Is there any particular reason you decided to bump a thread from 6+ months ago without having anything meaningful to add?
http://wiki.archlinux.org/index.php/For … Bumping.27
Closing the thread.
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