topic Re: detecting module automatically in Operating System - Linux

detecting module automatically

K.C. Chan — Mon, 14 Jan 2002 18:03:44 GMT

All, I need help adding 2 modules so that during a reboot the modules will be added in automatically with doing:
modprobe snd-pcm-oss and
modprobe snd-card-emu10k1. Will adding this to /etc/modules.conf help and if so, what is the format of adding in this conf file. Thanks.

Re: detecting module automatically

Erich Huebner_1 — Mon, 14 Jan 2002 18:27:39 GMT

Hello,
To load a kernel module on startup add the command
/sbin/insmod
somewhere at the end of your /etc/rc.d/rc.local file.

Re: detecting module automatically

James Purtell — Mon, 14 Jan 2002 20:39:14 GMT

To have any new modules loaded automatically you'll need to make a new initrd image.
Use the command mkinitrd. This will create a new initial ramdisk image for your system.
Here are the steps I would take.
1) Make a boot disk (mkbootdisk)
2) Copy your current image to a .old file so you can go back if need be. ( cp /boot/initrd-2.4.2-2.img /boot/initrd-2.4.2-2.img.old)
3) Remove your initrd image file (rm /boot/initrd-2.4.2-2.img)
4) Make a new image.(mkinitrd /boot/initrd-2.4.2-2.img 2.4.2-2smp (kernel version - uname -a)

This should do it.
PS: Check out your /etc/lilo.conf file to make sense of all this.

Regards
Jim

Re: detecting module automatically

K.C. Chan — Fri, 15 Feb 2002 14:52:32 GMT

James, I've tried it and it did not work. How does initrd knows which module to load during boot up? Thanks.

Re: detecting module automatically

Malcolm Cowe — Mon, 18 Feb 2002 14:06:49 GMT

Red Hat Linux provides a command line tool, "/sbin/sndconfig", which ought to configure your system files appropriately. If this does not work for you (as is normal for SoundBlaster Live cards), then it is necessary to edit the kernel modules parameter file, which will be either of "/etc/modules.conf" (newer systems), or "/etc/conf.modules" (older systems).

For the emu10k1 module, try adding the following entry into the file, on a line by itself:

alias sound emu10k1

It may also be necessary to add the following (but try your system without them first):

alias sound-service-0-0 sound
alias sound-slot-0 sound

Assuming you are using a SoundBlaster Live card of one sort or another, look at this page for details:

http://sourceforge.net/projects/emu10k1