systemimager in oscar 5.1rc1 suffers from the same e1000 PXE issues that
plague sles10sp2 and similar distros.

That is, you have to remove AC power after the systemimger kernel is loaded for
the first time.  Since I never booted a distro kernel, it is known for sure that
it's the oscar systemimager kernel causing it.

In summary, what happens is if you plug in AC power, power up the machine
(power button, or bmc), it will PXE fine and boot the systemimager kernel.
After that, the system will never be able to PXE boot again.  Even if
you power off the system from the BMC, it will still not be able to PXE
boot.  Not until you actually unplug the darn thing will it properly PXE
the next time.  So you get one valid PXE per AC power cycle.

SGI has had a sad history with this problem it turns out.  We've hit it in
varoius distros of RHEL and SLES, for example.  We've even patched a
systemimager kernel we use to include a newer e1000 driver to work around this
problem.  We've had the problem on a few different mainboards using e1000.

It was suggested that I try the UYOK option so that the distro kernel would
be used for imaging instead of the one that is built with systemimager
itself and I'll say I have not done this but since sgi has had success
patching an older systemimager for this problem, I suspect it has a high
chance for success assuming the distro itself doesn't suffer from the problem.

So given that, a valid answer might be "make sure the distro repo has a kernel
that doesn't suffer from this and use UYOK..."

Erik

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