On Tuesday 03 April 2007, Erick Perez wrote: > Hi, > I just changed the motherboard of a centos 4.4 installation for a new one. > this new one has a SIS chipset. > Now when i boot from the hard disk i get a kernel panic (unable to find > root, no hdd found , etc) > > I have identified the module I need to load to make centos "see" the disks. > Now the question is what do I need to modify in my existing installation, > to tell centos to use the new sis module and to *not* use the old intel? It's quite simple, stuff that is needed to access the thingy the /-filesystem lives on needs to be in the initrd.img-file. So if your disk-controller needs driver xyz.ko then that needs to be in there. The initrd.img-file is typically created with the mkinitrd command. mkinitrd, among other things, reads /etc/modprobe.conf to figure out which kernel modules to put into the new initrd.img-file. So, you'll have to create a new initrd.img-file with mkinitrd after adding something like "alias scsi_hostadapter xyz" to your modprobe.conf. If you run mkinitrd with -v you'll get to see which drivers it includes. Good luck, Peter
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