Update kernel Linux without reboot?!

 
Thread Tools Search this Thread
Operating Systems Linux Red Hat Update kernel Linux without reboot?!
# 1  
Old 10-14-2016
Update kernel Linux without reboot?!

Hi
Is it a way ? When Linux kernel updated that don't want reboot it means without reboot the new kernel performances

Thanks
# 2  
Old 10-14-2016
No. The kernel is loaded first thing during boot and is the core of the entire system, as discussed in e.g. this thread. How could you imagine it being replaced with the system running?
This User Gave Thanks to RudiC For This Post:
# 3  
Old 10-14-2016
There are actually several technical solutions allowing to hot patch a Linux kernel. The most advanced is ksplice which is a feature of Oracle Linux. Alternatives are kGraft (Suse) and kpatch (Red Hat)

Last edited by jlliagre; 10-14-2016 at 07:14 PM..
These 5 Users Gave Thanks to jlliagre For This Post:
# 4  
Old 10-15-2016
Thanks
Is there a way in centos?
# 5  
Old 10-15-2016
AFAIK, even while part or all of the underlying various implementations are open source, kernel hot patching is always a paid service.
# 6  
Old 10-15-2016
Thanks
It is possible to introduce in the field of educational resources
# 7  
Old 10-15-2016
Your last post looks incomplete.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Emergency UNIX and Linux Support

Reboot does not work after update

Hi guys, thanks for your help. I recently did a yum update on my rhel6.4 server. After this update, user logins take for ever and the reboot command does not work. When I do a reboot, the server hangs. Nothing happens. Any help with this will be appreciated. Thank you (3 Replies)
Discussion started by: cjashu
3 Replies

2. AIX

Loading AIX kernel extensions on reboot

Greetings, Does anyone know how to load AIX kernel extensions on reboot? I know that Oracle loads it's postwait kernel extension via a executable in /etc/inittab. I'm assuming this executable calls the "sysconfig" system call and loads it. What if I wrote my own? What is the proper way in AIX to... (3 Replies)
Discussion started by: jbleistein
3 Replies

3. Red Hat

Linux kernel update

Dear all, I have some linux servers in my prod environment. For two years i have not done any kernel updates or required patches ...should i have to this activity. My kernel version is 2.6.18-164.el5xen and linux release is release 5.4 (Tikanga). And reboot also not done for 2 years is... (2 Replies)
Discussion started by: jegaraman
2 Replies

4. Red Hat

Kernel panic after hard reboot and fsck

Could you please help with problem with megaraid controller and Dell PowerEdge 2850, all that I can see on thi screenshot: All drives successfuly passed verifing from LSI controllers (Ctrl+A at startup), also I tried to boot from rescue llive cd and mount all the morrored drives and check... (22 Replies)
Discussion started by: nikkadim
22 Replies

5. UNIX for Dummies Questions & Answers

Script to automatically reboot to newly compiled kernel with fallback

Hi, I'm new here. Just started playing around with kernel compilation. I need a little bit of advice. I'm trying to do a bash script to automatically compile a kernel package and reboot to that new kernel by default, with fallback to the old kernel. So far, I'm getting stuck at the part... (0 Replies)
Discussion started by: tridus_08
0 Replies

6. Red Hat

Kernel Update

1. Where do i obtain new kernels in ".rpm" format to update my RHEL5? is it only available to RHN subscribers? 2. i downloaded latest kernel (linux-2.6.31.5.tar.bz2) from kernel.org. #tar -xjvf linux-2.6.31.5.tar.bz2 after this i have a directory with lots of stuff in there. how do... (2 Replies)
Discussion started by: dplinux
2 Replies

7. Solaris

kernel update

Hi I am installeing Solaris Kernel update in my solaris Server. The Solaris Kernel update skipps the patch 120011-14. saying that it had already been installed. But it is not found in /var/sadm/patch directory where all the patches will be there. And also i could not install other... (11 Replies)
Discussion started by: jegaraman
11 Replies

8. Solaris

Solaris kernel Update

Hi All, I am installing kernel Update 3.0 in my Solaris servers. It actually installs most of the patches in this update , but for some packages it is not installing. It is saying ... Version of package SUNWcakr from directory SUNWcakr.us in patch 137137-09 differs from the package... (7 Replies)
Discussion started by: jegaraman
7 Replies

9. AIX

update w/o reboot

Hi, The apar instructions is to reboot on the ibm site. Is there's a way to update apar w/o reboot? I think I heard something before that it's possible. Thanks in any idea you will type... (1 Reply)
Discussion started by: itik
1 Replies

10. Linux

kernel patch update how to

Hi All, I need to update my redhatas4 kernel with kernel-2.6.9-67.0.20.EL.src.rpm. When I run this # rpm -ivh kernel-2.6.9-67.0.20.EL.src.rpm warning: user brewbuilder does not exist - using root warning: group brewbuilder does not exist - using root warning: user brewbuilder does... (2 Replies)
Discussion started by: itik
2 Replies
Login or Register to Ask a Question