[syslinux] isolinux problem: recent kernel versions vs. old hardware

[Michael Prokop]

* H. Peter Anvin <hpa at zytor.com> [20080214 20:00]:
> Michael Prokop wrote:
> > * H. Peter Anvin <hpa at zytor.com> [20080214 18:13]:
> >> Michael Prokop wrote:

> >>> Failure mode: nothing isolinux related is visible at all, like if
> >>> there weren't a bootable CD available. Is there anything we could do
> >>> to provide additional information to you?

> >> Meaning it boots the next bootable device, or it just hangs?

> > Booting the next bootable device.

> Hm, that makes it unlikely that ISOLINUX ever even got invoked at all. 
> Has anything other than isolinux changed, e.g. the version of mkisofs?

Hm yeah, there were definitely some changes. The problem is that
there are several months between our old and current version and
different build hosts are involved as well. So it's pretty hard to
find out what was the relevant change.

I'll try to provide several different versions of the ISO using
different mkisofs and isolinux versions to my test users.

What I don't understand yet is the empty /proc/cmdline when using
older isolinux versions. Do you have any idea what might be the
reason for that?

thx! && regards,
-mika-
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