I have RedHat 4.0 in /dev/sdb9 (I have hda, sda and sdb), but the upgrade
program does not see the /dev/sdb9, it only sees the other Linux
partitions. The reason why I have Linux on sdb9 is that it is the fastest
drive and I think it is clever to have root on the fastest drive.
I have used the latest supp.img, so that should not be the problem.