New kernel causes kernel panic/unable to mount root

[martyn at drake.org.uk (Martyn Drake)]

Just to say, the solution was to remake the initrd manually, which has been
suggested.  The magic combination was this:

mkinitrd /boot/initrd-2.4.21-27.0.4.ELsmp.img 2.4.21-27.0.4.ELsmp 
--with=scsi_mod --with=sd_mod --with=libata --with=sata_sil --with=3w-xxxx 
--with=ata_piix --with=sata_sis

(remembering to remove the RPM installed initrd image file first)

Not entirely sure why this particular RPM kernel installation didn't include
the driver, but it seems to be okay now.

Thanks to all for their suggestions and advice.

Regards,

	Martyn