Autoloaded modules from genkernel during bootup

Message

Vlad · Post by **Vlad** » Fri Jun 22, 2007 7:50 am

I'm curious what mechanism the genkernel created initramfs uses to determine what modules to load during bootup. It seems they're not dynamically detected or anything, as it loads up modules for hardware I don't have. I'm interested in modifying this list to load modules I will be using (took me a while to figure out the ATA drivers for my hardware were modules and were not being loaded during bootup).

Thanks for any help.

-Vlad

warrawarra · Post by **warrawarra** » Fri Jun 22, 2007 6:31 pm

make menuconfig
or
make xconfig

then specify the drivers needed and compile the kernel.

Or not sure when this loads but it is very close to the beginning:

/etc/modules.autoload.d/kernel-2.6

I sometimes add wireless modules to this above file and it works think it is close to or before udev detecting.

Insmod bcm43xx force
or
modprobe bcm43xx force
once inside a live cd /dvd enviroment and then "update-module force" .

ATA = think the newer kernels uses sata as the default module and this is a combination of ata and sata and scsi or at least that is how it works on mine.

Might also be able to use a cheat code during startup or at least on live cd's /dvd's and say generic-ata or noacpi or xres or similar not sure if you can add this to grub and have it do the job ?

Hope this helps.

Vlad · Post by **Vlad** » Fri Jun 22, 2007 7:30 pm

I've already configured the kernel to contain the modules (note that they're modules and not statically compiled). There are drivers loaded before INIT is ever called and before the real_root filesystem has been mounted (in fact the modules I want to load are required to access this file system!). I don't know if genkernel supports livecd-style command line instructions, but even if it does, I have no idea what the commands would be to load any arbitrary driver.

Post by **John R. Graham** » Fri Jun 22, 2007 9:25 pm

Vlad wrote:I don't know if genkernel supports livecd-style command line instructions, but even if it does, I have no idea what the commands would be to load any arbitrary driver.

See [topic=544642]Specify modules to load from an initramfs?[/topic]

- John

Vlad · Post by **Vlad** » Fri Jun 22, 2007 10:56 pm

Thank you ever so much, that's exactly what I was looking for. :)

Post by **John R. Graham** » Fri Jun 22, 2007 11:23 pm

Yeah, me, too, minus 3 months.

- John

Vlad · Post by **Vlad** » Sat Jun 23, 2007 1:41 am

Hm, do you know if there's a way to limit the modules loaded by default? It loads a ton of sata and networking drivers I don't need loaded.