upgrading from 2.4 to 2.6 kernel

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

how do i upgrade my kernel from 2.4 to 2.6 iv searched for a howto maybe im looking in the wrong place. thankyou

Rainmaker · Posted: Wed Jun 02, 2004 5:14 am Post subject:

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

k sounds simple enough .i will give it a go thanks fellow aussie ..... i think ?

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

when i use make menuconfig it opens with linux kernel 2.4.25-gentoo-r2 configuration is that correct ???

Raistlin · l33t Joined: 17 May 2004 Posts: 691 Location: Boston, MA

did you recreate a new symlink to "/usr/src/linux-2.6.[whatever]" ?

r.
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spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

i tried as stated above using the new kernel name,but when ls -la /linux it still shows the link to 2.4.25 are the above commands correct?

HydroSan · Posted: Wed Jun 02, 2004 5:33 pm Post subject:

After you emerge the new sources, do:

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

thanks that has fixed it i will continue with the upgrade
cheerz

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

once it has finished compiling what do i have to do to boot from that kernel ?? altering grub i gather ? this should all make sense soon ,i hope

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

the 2.6 kernel that i just compiled is what i meant in the last post , do i still use these commands
mount /boot
cp arch/i386/boot/bzImage /boot/kernel-2.6
thanks for your time

Rainmaker · Posted: Thu Jun 03, 2004 3:50 am Post subject:

yes, use those 2 commands to copy the kernel into your boot partition.

Then alter grub.conf to display a new menuoption when booting. I'm not a GRUB user myself, but I think you have to do it like this:

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

ok i compiled it no probs, altered the grub conf no problem ,when it boots with 2.6.5 i get the error that i didnt compile DEVFS in the kernel .
ill try this
1) As root in a shell, enter the command "mount /boot"
2) cd to the source directory
3) copy the kernel from that directory to your /boot
4) enter "umount /boot"
5) restart computer; notice that you don't get the message anymore.

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

cannot umount /boot ,i must be doing something wrong any help appreciated .thanks

HydroSan · Posted: Thu Jun 03, 2004 4:14 pm Post subject:

Well, what I usually do, and it works all the time, is...

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

mount /boot i cant its already mounted .would this cause a problem or it dosnt matter as it is already mounted? maybe i should do a fresh install
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HydroSan · Posted: Thu Jun 03, 2004 10:25 pm Post subject:

Wart · n00b Joined: 03 Jun 2004 Posts: 66

I tried to follow these directions and now I get a cannot mount root error. It's broken good

Rainmaker · Posted: Fri Jun 04, 2004 12:30 am Post subject:

just reompile, don't start over again.

Take a deep breath

Then go out for a smoke

When you feel relaxed and come back, start up your PC in your "old" 2.4 kernel.

Then do this:

Wart · n00b Joined: 03 Jun 2004 Posts: 66

How do I start with the 2.4 kernel? I tried editing /etc/lilo.conf to point to the old kernel, but everything is mounted as read only..

spockstar · n00b Joined: 02 Jun 2004 Posts: 39 Location: Oztrailya

yep i got it all working now no probs .i was originally having trouble with the nvidia package ,but now with 2.6 it emerged with no problem.what is the easiest way to keep the system up to date???
thanks again for all your help

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