how to replace an existing kernel image with new one

manik123mit · 09-17-2008, 02:20 PM

hi
i am using fedora9 which has kernel 2.6.25 version.I had compiled a new kernel 2.6.26.I want to replace an existing kernel image in an installed linux
machine with this kernel...

pixellany · 09-17-2008, 02:39 PM

Quote:

Originally Posted by manik123mit

Now i have both versions running.

I don't think you meant that---you can't have 2 kernels running at the same time.

Quote:

Originally Posted by manik123mit

please let me know this very soon...

This is a volunteer site---some here do not respond well to "customers" being in a hurry......

Look at the GRUB configuration file (typically /boot/grub/menu.lst, but sometimes .../grub.conf) This tells you the name of the kernel file that will be used. I typically always alias the file to a generic "vmlinuz". I never change the config file, only the alias (link).

Depending on the kernel, you may also need to build a new initrd file.

neilcpp · 09-17-2008, 04:07 PM

only one kernel can be running at one time. you can remove the kernel reference from your boot loader. eg if using grub edit the menu.lst file deleting the entry you dont want.

if you did a make install - you dont have anything really ro worry about other than the old kernel image - which you can easily delete by hand.