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Brother Dysk
Tux's lil' helper
Joined: 29 Sep 2003
Posts: 131
Location: Hong Kong SAR PRC
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 Posted: Wed Dec 17, 2003 2:42 am Post subject: Help a n00b (kernels) |
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I have 2.4.20-gentoo-r7 as my kernel.
I want to get to using the 2.4.20-gentoo-r9 kernel, do_brk fix, and all that.
How? I take it it's not quite as easy as just 'emerge world' or 'emerge gentoo-sources' |
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steel300
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Joined: 10 Jul 2003
Posts: 1155
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| Posted: Wed Dec 17, 2003 2:57 am Post subject: |
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| Code: |
emerge gentoo-sources
rm /usr/src/linux
ln -sf /usr/src/linux-2.4.20-gentoo-r9 /usr/src/linux
cd /usr/src/linux
cp ../linux-2.4.20-gentoo-r7/.config ./
make dep && make clean bzImage modules modules_install
mount /boot
cp arch/i386/boot/bzImage /boot
umount /boot
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That should take care of the job. I'm just guessing on the actual directories that the trees are in, but linux-2.4.20-gentoo-r7 and linux-2.4.20-gentoo-r9 sound right. Since they are in the same kernel branch (both 2.4.x), just copying the config file and recompiling should take care of everything. If you used genkernel, you can skip anything past the make line.
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triad
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Joined: 10 Jul 2003
Posts: 234
Location: Dark Side of the Moon
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Brother Dysk
Tux's lil' helper
Joined: 29 Sep 2003
Posts: 131
Location: Hong Kong SAR PRC
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| Posted: Wed Dec 17, 2003 3:19 am Post subject: |
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Thankyou, doing that now  |
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steel300
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| Posted: Wed Dec 17, 2003 3:20 am Post subject: |
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No Problem. Write back and let us know how it went.
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Brother Dysk
Tux's lil' helper
Joined: 29 Sep 2003
Posts: 131
Location: Hong Kong SAR PRC
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| Posted: Wed Dec 17, 2003 3:25 am Post subject: |
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| Oh, just a though, I'll be able to boot both my old kernel and the new one after this, I take it (obviously setting up GRUB accordingly) |
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steel300
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Joined: 10 Jul 2003
Posts: 1155
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| Posted: Wed Dec 17, 2003 3:36 am Post subject: |
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Yeah, just copy the new bzImage file to /boot as bzImage-new. Then edit grub.conf and add an entry identical to your the entry for your old kernel, except for the line where you specify the kernel.
Something like this:
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default 0
timeout 10
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
title = Gentoo
root (hd0,0)
kernel (hd0,0)/boot/bzImage root=/dev/hda3
title = New Gentoo
root (hd0,0)
kernel (hd0,0)/boot/bzImage-new root=/dev/hda3
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Brother Dysk
Tux's lil' helper
Joined: 29 Sep 2003
Posts: 131
Location: Hong Kong SAR PRC
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| Posted: Wed Dec 17, 2003 3:40 am Post subject: |
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| Well, I'll find out now: reboot time. |
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Brother Dysk
Tux's lil' helper
Joined: 29 Sep 2003
Posts: 131
Location: Hong Kong SAR PRC
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| Posted: Wed Dec 17, 2003 3:43 am Post subject: |
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Success!!
Thanks ever so much. |
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steel300
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| Posted: Wed Dec 17, 2003 3:45 am Post subject: |
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Don't mention it. Just glad to help.
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Brother Dysk
Tux's lil' helper
Joined: 29 Sep 2003
Posts: 131
Location: Hong Kong SAR PRC
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| Posted: Wed Dec 17, 2003 10:42 am Post subject: |
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| Hrm. Say I wanted to try a 2.6 kernel, what would I do instead of copying my old kernel config file over? |
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Brother Dysk
Tux's lil' helper
Joined: 29 Sep 2003
Posts: 131
Location: Hong Kong SAR PRC
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| Posted: Wed Dec 17, 2003 11:33 am Post subject: |
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| Yep, that gives me a bunch of unresolved symbol issues. How'd I get around that? |
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steel300
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Joined: 10 Jul 2003
Posts: 1155
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| Posted: Wed Dec 17, 2003 2:41 pm Post subject: |
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Did you remember to create the new symlink?
| Code: |
rm /usr/src/linux
ln -sf /usr/src/your_new_2.6_kernel /usr/src/linux
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floffe
Guru
Joined: 24 Nov 2003
Posts: 414
Location: Linköping, Sweden
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| Posted: Wed Dec 17, 2003 4:21 pm Post subject: |
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If you get a 2.6 kernel, it would probably be wise to before you | Code: | make
make modules_install |
(Yes, it is that easy to compile 2.6  )
Be sure to include devfs into the kernel though. There are many who forget that... |
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Installing Gentoo
