[ovirt-users] Run Once install -> reboot loop

[Alexander Wels]

On Friday, February 19, 2016 10:23:02 AM Jamie Lawrence wrote:
> > On Feb 18, 2016, at 11:45 PM, René Koch <rkoch at rk-it.at> wrote:
> > 
> > Hi Jamie,
> > 
> > That reason for this is, that the iso will be mounted as long as you're in
> > run once mode.
> > 
> > You can fix this by powering off your vm after the installation and run it
> > again in "normal" mode. As you don't want to run the vm in run once mode
> > forever, you have to shut it down anyway.
> But it seems that this has worked for me in the past, when I was creating
> these through the GUI. In other words, after the OS installer reboots, it
> would correctly reboot in “normal” mode. Am I hallucinating that?
> 

It works in the UI because the HD is the first boot device and the CDROM is 
lower in the order. When you boot, it sees the HD doesn't have a boot record 
and continues to the next one. Once installed the reboot will have given the 
HD a boot record and it will start from there.

Make sure that in your case the CDROM is NOT the first device and I think you 
should be alright.

> In any case, I’m sure there’s a power-off API method, but I’m not sure how
> to reliably detect when to call it. I could do something hacky like call my
> own API endpoint as the last action of the installer somehow (I know how to
> with Debian, and I’m sure the RH family can do it as well), but that seems
> fragile.
> 
> Maybe hack the installer to power power off instead of reboot, and detect
> that? I hate the idea of having to fork/maintain my own installer
> patches...
> 
> What do other people do for automating this situation?
> 
> -j
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