Hello Steve, I have a similar problem with HP xw9300 When the prompt is displayed: boot: _ At the boot prompt, enter linux acpi=off Koray -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Steve Gaarder Sent: Wednesday, February 01, 2006 11:11 PM To: redhat-list@xxxxxxxxxx Subject: Dell 260 runs RH7, panics on RHEL 4 I have a Dell Optiplex 260, a P4 box with 1 GB of memory. It's been running Red Hat 7 for years. When I try to boot the Red Hat Enterprise 4 install disk, the kernel panics. WHen I move a hard drive containing a RHEL4 installation to this machine and boot it, the kernel panics. Knoppix will not boot either. Memtest86 ran overnight without any errors. I'm flummoxed! Any ideas? thanks, Steve Gaarder System Administrator, Dept of Mathematics Cornell University, Ithaca, NY, USA gaarder1@xxxxxxxxxxxxxxxx -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list