[CentOS] How to prevent loading qla2300.o module

[Will McDonald]

On 12/08/05, Alfred von Campe <alfred at 110.net> wrote:
> On Aug 11, 2005, at 0:45, Shawn M. Jones wrote:
> 
> > Alfred von Campe wrote:
> >
> >> How can I configure the kernel to ignore the QLogic HBA? It's not
> >> that critical for the kickstart process (although that would be nice
> >> too).
> >
> > Off of the top of my head, I don't know what to do about kickstart,
> > but look in the /etc/modprobe.conf to see what options are passed to
> > loaded modules. If your module is in there, try removing the line. If
> > it is not in there, try the /etc/modules file (if it exists, RH/CentOS
> > doesn't usually have one these days).
> 
> Nope, that didn't work.  The good news is that in RHEL4 (CentOS 4) the
> delay is only 20 seconds instead of 60 for each channel (so 40 total),
> which is almost tolerable :-).

Again, the module's probably included in the initrd because it was in
/etc/modprobe.conf when the initrd was built. To have a shufty at
what's in your initrd try something like the following...

[wmcdonald at willspc initrd]$ pwd
/home/wmcdonald/initrd
[wmcdonald at willspc initrd]$ cp /boot/initrd- 2.6.9-5.0.5.EL.img
initrd-2.6.9-5.0.5.EL.img.gz
[wmcdonald at willspc initrd]$ gunzip initrd-2.6.9-5.0.5.EL.img.gz
[wmcdonald at willspc initrd]$ ls
initrd-2.6.9-5.0.5.EL.img
[wmcdonald at willspc initrd]$ file initrd-2.6.9-5.0.5.EL.img 
initrd-2.6.9-5.0.5.EL.img: ASCII cpio archive (SVR4 with no CRC)
[wmcdonald at willspc initrd]$ cpio -i initrd-2.6.9-5.0.5.EL.img
(Doh)
[wmcdonald at willspc initrd]$ cat initrd-2.6.9-5.0.5.EL.img | cpio -i
<snip errors>
4016 blocks
[wmcdonald at willspc initrd]$ ls -l
total 2048
drwxr-xr-x  2 wmcdonald wmcdonald    4096 Aug  4 16:23 bin
drwxr-xr-x  2 wmcdonald wmcdonald    4096 Aug  4 16:23 dev 
drwxr-xr-x  4 wmcdonald wmcdonald    4096 Aug  4 16:23 etc
-rwxr-xr-x  1 wmcdonald wmcdonald    1139 Aug  4 16:23 init
-rw-r--r--  1 wmcdonald wmcdonald 2056192 Aug  4 16:23 initrd-2.6.9-5.0.5.EL.img
drwxr-xr-x  2 wmcdonald wmcdonald    4096 Aug  4 16:23 lib 
drwxr-xr-x  2 wmcdonald wmcdonald    4096 Aug  4 16:23 loopfs
drwxr-xr-x  2 wmcdonald wmcdonald    4096 Aug  4 16:23 proc
lrwxrwxrwx  1 wmcdonald wmcdonald       3 Aug  4 16:23 sbin -> bin
drwxr-xr-x  2 wmcdonald wmcdonald    4096 Aug  4 16:23 sys 
drwxr-xr-x  2 wmcdonald wmcdonald    4096 Aug  4 16:23 sysroot

Then have a prod around in /lib. If the qla module isn't listed in
there it could be compiled into your kernel which might necessitate a
rebuild if you can be bothered.

Will.