Re: [Xen-users] Selecting Xen in Grub causes machine to reboot back to POST

[Scott Garron <xen-users@xxxxxxxxxxxxxxxxxx>]

Scott Garron wrote:
[from:
http://lists.xensource.com/archives/html/xen-users/2010-04/msg00105.html ]
> If I select the Xen entry from my Grub menu, the screen goes black 
> for a few seconds, then the machine reboots back to the power on self
> test (POST) and repeats the process.
     After poking around with this for some time on my own, trying
different serial console and debug level settings as well as putting the
hard drive in a completely different machine, I found that Grub legacy
starts Xen whereas Grub-pc (Grub2) causes the reset problem in my
original post (on both machines).  I'm still not entirely sure what the
actual problem is, but at least I found a work-around.

     When it does boot Xen and the Linux kernel, it seems like Linux
doesn't actually have access to *any* I/O, though; including the
keyboard.  I'm still trying to figure out what's going on there.  I see
it loading drivers for my hardware, but the one for the PATA controller
displays three timeout errors and it never finds the root volume.  When
it finally finishes waiting for it and drops to a busybox shell, the
keyboard doesn't produce any interaction with it.  If I reboot and
select the same kernel without Xen, it boots just fine.

--
Scott Garron

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