At one time, we used to have to put "apm=power-off" on the kernel
command line to get systems to reboot. Not sure if that's still
something. You could try it though...
Paul Krizak 7171 Southwest Pkwy MS B200.3A
Senior Systems Engineer Austin, TX 78735
Advanced Micro Devices Desk: (512) 602-8775
Linux/Unix Systems Engineering Cell: (512) 791-0686
Silicon Design Division Fax: (512) 602-0468
On 12/11/09 12:08, Tom Sightler wrote:
On Fri, 2009-12-11 at 09:04 -0500, Jason Edgecombe wrote:
Through my own testing, I have found that the reboot=pci kernel boot
option will enable reboots to work properly, but that option only exists
in kernels newer than that included in RHEL5.4. I see my options as
patching the kernel or running a fedora/mainline kernel. Patching isn't
easy because the reboot=pci feature is in the kernel 10 versions newer
than RHEL5.4 and there is significant divergence, and I'm not much of a
kernel developer. I'm not sure what trials lie with running a fedora kernel.
Have you tried all of the "reboot=" options that RHEL5.4 does support?
For example, "reboot=b" (the 'b' stands for BIOS) works for many 32-bit
systems that can't otherwise reboot. I've also had success with
'h' (hard), 'c' (cold), and 's' (SMP) as various options to force 32-bit
systems to reboot.
I don't think 64-bit system support as many options, but I know one
options it "reboot=t" which I think stands for something like
"triple-fault" and I think there's a 'f' for "force" although I have no
idea what that does.
If you exhaust all those options, as perhaps you already have, and it
still won't reboot with any of them, then I would lean toward running
Fedora, and if you have to have RHEL5 for compatibilty with some apps,
run it virtualized via KVM.
Later,
Tom
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