Mark, Thanks for all the help! The IBM OCO LCS driver is working with RH 7.2 (2.4.9-17) now. I was initially getting this error at boot time: depmod: depmod: *** Unresolved symbols in /lib/modules/2.4.9-17tape/kernel/net/lcs.o I noticed yesterday that IBM had replaced the OCO driver tar file on 1/15/2002, so I downloaded and reinstalled and now it's working!! A couple of things I ran into on the RH 7.2 and OCO install: 1. The zipl command that gets executed at the end of the RHSETUP script fails because it is trying to reference a misspelled image name. I believe it was referencing vmlinuz-2.4.9-17.tape and it should have been vmlinuz-2.4.9-17tape I built a /boot/parmfile (use all lower case!!) and reran zipl. zipl -t /boot -p /boot/parmfile -i /boot/vmlinuz-2.4.9-17tape 2. In section3 of the "How to install the LCS...." document the "tar" command is in error. The correct syntax should be: tar -xzOf redhat-oco-2.4.9-17-s390-2.tar.gz redhat-oco/redhat-oco-2.4.9-17-2.tar.gz | tar -C / -xzf - ./lib Thanks to Jochen from IBM on getting back to me on this. FYI Dave