From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040616 Description of problem: my pxelinux.cfg: default linux display boot-RHEL4_64.msg label linux kernel vmlinuz-RHEL4_64 append ksdevice=eth0 initrd=initrd-RHEL4_64.img devfs=nomount ramdisk_size=32768 ks=nfs:beano:/export/lair/RHEL4_64/ks.cfg network swiotlb=16384 mem=4000M text acpi=off apm=off usb-handoff I've tried without all the options after "network". None of them seem to help. I also get these errors <7> Losing some ticks... checking if CPU frequency changed. warning: many lost ticks. Your time source seems to be instable or some driver is hogging interupts rip handle_IRQ_event+0x21/0x55 This is an HP xw8200 with LSI scsi built-in. I upgraded the firmware. I was able to install the x86 version of this same distribution without problems (RHEL4 U1 beta for x86) on this same system. Version-Release number of selected component (if applicable): x86_64 RHEL4 Update1 beta How reproducible: Always Steps to Reproduce: 1. pxe boot to install over nfs 2. 3. Actual Results: md: --- autorun DONE. VFS: Cannot open root device "<NULL>" or unknown-block(3,2) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mouint root fs on unknown-block(3,2) <7> Losing some ticks... checking if CPU frequency changed. warning: many lost ticks. Your time source seems to be instable or some driver is hogging interupts rip handle_IRQ_event+0x21/0x55 Expected Results: anaconda starts it's install Additional info: I installed x86, fine after this problem, then went back to x86_64 and had the problem again. Don't charge me for this. I'm evaluating redhat workstation and am submitting this problem as a courtesy!
I just tried the pxe vmlinuz and initrd from RHEL4 (not the update beta) and got the same results.
This URL has a potential workaround for an ISO based install. What's causing it is a mystery. I was able to load FC4 which already had a FC3 installation on a dual processor Opteron after trying this out. http://kerneltrap.org/node/4746
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