How does MAAS pick which volume to boot from?

[Daniel K]

I have a feeling that something(hpe?) is trying to be too smart and
swapping the drive locations.

It'd be easily fixable if I knew where to tweak the knobs that tells the
PXE loader which drive to boot.


On Mon, Dec 4, 2017 at 9:03 PM, Lloyd Parkes <lloyd at must-have-coffee.gen.nz>
wrote:

> This is a me too post. Sorry about that.
>
> > On 4/12/2017, at 3:27 PM, Daniel K <sathackr at gmail.com> wrote:
> >
> > I'm having an issue installing to the micro-sd card of some HP SL230S
> servers. The card is detected, I configure the node to mount the card at
> "/" using the btrfs filesystem and tick the boot radio button next to it.
> Deploying completes up to the final reboot. the PXE boot selects the wrong
> drive and I get a "illegal opcode" error.
>
> I’ve seen the same thing on other HPE gear with Red Hat Satellite booting.
> In my case Linux is installed onto a SAN volume and server knows that when
> booting from disk it should boot from the SAN volume. If the server PXE
> boots and the PXE boot image says to boot from the local disk, then the
> booter appears to select the wrong drive and I get a "illegal opcode" error.
>
> I haven’t bothered tracking this down for … reasons, but I would be
> interested to hear from anyone who might know what’s going on. I suspect
> that PXELinux simply doesn’t do as good a job as the BIOS of knowing which
> disk to boot from, or even what disks are bootable.
>
> Cheers,
> Lloyd
> p.s. I’m (fortunately?) not in the right country to get at MAAS right now.
> I do however have access to a lagoon, a mask and a snorkel.
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