Quick Recompile Kernel Question

CrEsPo · 03-28-2006, 09:17 AM

Right now I'm running the kernel, 2.4.31, from the Slackware 10.2 install. I haven't done anything with it yet. I don't want to compile a new kernel yet, just want to update the one I have. How would I go about doing this? I want to keep the same kernel and settings that Patrick originally had, but just want to include one more option.

I know how to compile the kernel if I wanted to upgrade from say 2.4 to 2.6, just not sure on how to recompile my current kernel and not loose the previous settings.

Thanks

odevans · 03-28-2006, 09:41 AM

The Slackware 2.4.31 config is here:

ftp://ftp.slackware.com/pub/slackwar...ource/k/config

EDIT:

The config file may be in your /boot directory too (config-ide-2.4.31)

kilgoretrout · 03-28-2006, 09:56 AM

If you just want to tweak your existing kernel by including one more option, that is easy. If you do "make menuconfig" or "make xconfig" if you like a graphical interface, all the options set in your original kernel will be selected and you just have to add the additional one you want and recompile a new kernel with that option.

CrEsPo · 03-28-2006, 12:05 PM

Thanks for the replies, so am I right if I follow this?

----
1. make menuconfig
- Add option
2. make -j5 bzImage
3. cp System.map /boot/System.map-2.4.31-aad
4. cp .config /boot/config-2.4.31-aad
5. cp /usr/src/linux/arch/i386/boot/bzImage /boot/vmlinuz-2.4.31-aad
6. mv /boot/vmlinuz /boot/vmlinuz-old
7. rm /boot/System.map
8. rm /boot/config
9. rm /boot/vmlinuz
10. cd /boot
11. ln -s System.map-2.4.31-aad System.map
12. ln -s config-2.4.31-aad config
13. ln -s vmlinuz-2.4.31-aad vmlinuz
14. vi /etc/lilo.conf
- Edit old kernel and add new kernel
15. /sbin/lilo
-----

I'm assuming I won't need to make and install the modules if I don't add the option I'm adding in as a module. This will keep my old kernel in case something screws up and create a kernel with my one option I need to add?

cwwilson721 · 03-28-2006, 03:13 PM

Looks good, except, just in case, do a 'make modules_install' anyways....Sometimes, it can be a life saver....

danieldk · 03-28-2006, 04:24 PM

0. Copy the current configuration. The config files are also on the first Slack CD. E.g. if you use the bare.i kernel, and have the Slack CD mounted on /mnt/cdrom:

cp /mnt/cdrom/kernels/bare.i/config /usr/src/linux/.config

CrEsPo · 03-28-2006, 06:04 PM

Thanks for all the replies. I think I'm set, I don't have time to do it today, but tomorrow I'll do it as soon as I get home from my tests. Thanks

.

Update: Everything worked, at least I think. Thanks to everyone who replied in this thread, I appreciate it.

By the way, I did need to do the 'make modules' also because the first boot everything failed. At least it's working now, thanks again everyone.

In case some on looker wants to know, here's exactly what I did:

-----
0. cp /mnt/cdrom/kernels/bare.i/config /usr/src/linux/.config
1. make menuconfig
- Add option
2. make -j5 bzImage
3. make modules
4. make modules_install
5. cp System.map /boot/System.map-2.4.31-aad
6. cp .config /boot/config-2.4.31-aad
7. cp /usr/src/linux/arch/i386/boot/bzImage /boot/vmlinuz-2.4.31-aad
8. mv /boot/vmlinuz /boot/vmlinuz-old
9. rm /boot/System.map
10. rm /boot/config
11. rm /boot/vmlinuz
12. cd /boot
13. ln -s System.map-2.4.31-aad System.map
14. ln -s config-2.4.31-aad config
15. ln -s vmlinuz-2.4.31-aad vmlinuz
16. vi /etc/lilo.conf
- Edit old kernel and add new kernel
17. /sbin/lilo
-----

Edit: Sorry, another edit

. Just noticed, ALSA no longer works. If I use alsaconf I get the following:

Code:

No supported PnP or PCI card found.

Would you like to probe legacy ISA cards/chips?

Any ideas? I got a Audigy 2 ZS card. I tried the following:

Code:

bash-3.00# modprobe emu10k1
/lib/modules/2.4.31/kernel/drivers/sound/emu10k1/emu10k1.o: init_module: No such device
/lib/modules/2.4.31/kernel/drivers/sound/emu10k1/emu10k1.o: Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters.
      You may find more information in syslog or the output from dmesg
/lib/modules/2.4.31/kernel/drivers/sound/emu10k1/emu10k1.o: insmod /lib/modules/2.4.31/kernel/drivers/sound/emu10k1/emu10k1.o failed
/lib/modules/2.4.31/kernel/drivers/sound/emu10k1/emu10k1.o: insmod emu10k1 failed

Do I need to reinstall ALSA?

Also noticed /etc/modules.conf is now empty, anybody got the default Slackware modules.conf?

CrEsPo · 03-29-2006, 11:21 PM

I followed this link to try and fix this problem. ALSA compiled with no errors and the modules loaded fine, but still no sound. Any ideas? I'm really not in the mood to reinstall the whole OS

.

wchild · 03-30-2006, 12:33 AM

After every kernel modification you have to reinstall alsa-modules.
Remember, in 2.4 alsa is not included into the kernel.
And you've got no sound because probably all sound channels are muted by default like alsa uses to do. Run alsamixer and see.

CrEsPo · 03-30-2006, 06:14 AM

Is there a specific alsa-modules package that I need? I tried two ways:

1. Installing the alsa packages from the Slackware 10.2 CD:
- alsa-driver-1.0.9b_2.4.31-i486-1
- alsa-lib-1.0.9-i486-1
- alsa-utils-1.0.9a-i486-2

2. Installing from a manual compile

I always checked alsamixer and the master was unmuted. I seen somewhere to unmute 'Audigy Analog/Digital Output Jack', which I did, but when I do that I hear static sounds. Is there anything else I should unmute?

Thanks for the reply.

Edit: I seemed to have solved it. I was doing some searches and noticed that I did not use the following when I compiled alsa.

Code:

./snddevices

chmod a+rw /dev/dsp /dev/mixer /dev/sequencer /dev/midi

I must of missed this on the page I followed. Just ran those commands and unmuted the 'Audigy Analog/Digital Output Jack' and it seems to be working. Thanks for all the replies

.

wchild · 03-30-2006, 07:39 AM

Quote:

Originally Posted by CrEsPo

Is there a specific alsa-modules package that I need?

It's called alsa-driver and it contains alsa kernel modules.
Sorry for confusing you

b0nd · 03-30-2006, 09:18 AM

hi,
me too had the same issue of "sound" everytime i compiled my 2.4.26 slackware kernel.
finally it was sorted out.
you can check out the link:
http://www.linuxquestions.org/questi...d.php?t=400204

regards