[syslinux] Intel DX79TO localboot problem with CentOS

[Jonas Keidel]

2013/8/5 H. Peter Anvin <hpa at zytor.com>

> On 08/05/2013 06:04 AM, Jonas Keidel wrote:
> > 2013/8/5 H. Peter Anvin <hpa at zytor.com>
> >
> >> On 08/05/2013 05:37 AM, Jonas Keidel wrote:
> >>> I have problems with the current syslinux (6.02-pre16) booting CentOS
> 6.4
> >>> 64bit via LOCALBOOT 0 with the Intel DX79TO.
> >>
> >> Did it work in previous versions?
> >>
> >
> > As i have written, in every previous syslinux version it didn't work.
> >
> >
> >>> Also in every previous version there is problem exiting the pxe-stack.
> It
> >>> boots again from bios.
> >>
> >> What do you mean with "exiting the PXE stack" in this context?
> >>
> >
> > So i mean looking for the next boot device in the bios boot order. The
> > screen output says:
> >
> > Boot from local hdd ...
> > Exiting PXE.
> >
> > And then it reboots.
> >
>
> I don't know how much we can do about that.  "localboot 0" and
> "localboot -1" are effectively different ways to request the same
> service from the BIOS, but it seems one is broken.  Other than having a
> huge quirks table, of course, but that is problematic in itself.
>
> chain.c32 may be a better option all around... instead of exiting to the
> BIOS to let it pick up the next device, it loads the boot data from disk
> directly.
>
>
So i've also tried to use chain.c32, but there are also some problems.
For example FreeBSD doesn't boot with chain.c32, so we've decided to use
localboot, because it works in 90%, except with that board.
Maybe you have an idea how to fix that? Or what do you think is broken?


>         -hpa
>