Debian 6.0 AMD 64 Kernel Switch

AsadMoeen · 02-16-2012, 06:44 AM

Well I'm running a Debian 6.0 AMD64 machine and I'm wondering how to switch it to another Kernel. I am currently hosting game servers and I want to use a pre-compiled kernel for Debian 6.0 64-bit one of my friends made for me.

I have the following files with me,

linux-headers-3.0.0-ub-100hz.deb
linux-image-3.0.0-ub-100hz.deb

Now I need to know how do I switch to them. I've searched a lot of guides but many haven't helped. I also want to retain the old kernel just so if anything goes wrong to switch back to what I had.

Also, I know about the dpkg -i .deb file command but I don't know what I should do this for both files? And that many guides stated something like /boot/grub/menu.conf to change.

Any help regarding it? Thank you.

ukiuki · 02-16-2012, 07:03 AM

You can install the image and you will still have the current kernel at boot grub will show you both and you can pick which one to boot. If you are not going to compile any kernels then you don't need the headers.

Regards

AsadMoeen · 02-16-2012, 07:04 AM

Quote:

Originally Posted by ukiuki

You can install the image and you will still have the current kernel at boot grub will show you both and you can pick which one to boot. If you are not going to compile any kernels then you don't need the headers.

Regards

Yeah but since what I use is a Xen VPS, I wont see the option.

Anyway to directly activate?

AsadMoeen · 02-16-2012, 10:24 AM

And if I have to set it to auto ?

AsadMoeen · 02-16-2012, 12:23 PM

Code:

dpkg -i KernelImageName.deb

was successful and now I can see my image located in /boot .

However update-grub failed with the following:

Code:

 update-grub
Searching for GRUB installation directory ... found: /boot/grub
warning: grub-probe can't find drive for /dev/xvda1.
grub-probe: error: cannot find a GRUB drive for /dev/xvda1.  Check your device.map.

While my /boot/grub/grb.conf looks like this :

Code:

default=0
timeout=10
title vmlinuz-2.6.32-5-amd64
root (hd0,0) 
kernel /boot/vmlinuz-2.6.32-5-amd64 console=hvc0 root=/dev/xvda1 ro
initrd /boot/initrd.img-2.6.32-5-amd64

What should I do? Haven't tried restarting but does this mean it has been installed?

ukiuki · 02-16-2012, 03:23 PM

Yes looks like it is installed, did you run update-grub as root? Aren't you using the Xen VPS?

AsadMoeen · 02-16-2012, 11:22 PM

Quote:

update-grub

Gave me errors which I fixed using this guide posted right here.

http://www.hosthop.com/hop/knowledge...orkaround.html

After which the system didn't boot at all and showed this at console:

Quote:

Can't access TTY; job control turned off

ukiuki · 02-17-2012, 06:21 AM

Was the kernel compiled in different computer? Did you give to your friend your current kernel config to compile it with your machine parameters?

Regards