> Then your problem is clear. You have a BIOS bug.

Dang... Ok, that's something we can deal with.. have to go hunting on
the MSI site for a new BIOS and flash it.  My brother can do that... I
hope :-)


> sata controller BIOS). Explanation: The EDD code calls into the BIOS
> before the kernel enters protected mode, so if that call hangs, your
> machine will not boot.

Interesting.. that's good to know...


> Hm, is your computer by any chance manufactured by Fujitsu-Siemens?

Nope.  It's a "home built" system, assembled from various individual bits.


> Did I understand correctly that you can boot into Linux with SATA
> enabled and edd=off? If not, can you find a pattern when Linux with SATA
> works, like only the first time after switching on the machine, or only
> if no CD/DVD was in any drive or something like that?

I tried listing all the combinations we've tried... but I have ot check
again with my brother... just to be sire... so I'll try to follow up on
this later.

We do have a fairly repeatable pattern where Linux will boot initially
(without the edd=off param), but if we enable SATA at any point and boot
to Windows, then disable SATA and try to boot Linux it's dead, and
remains dead.  only a reinstall seems to "resurrect" it again.

Using edd=off, and with SATA enabled, we were able to get it working,
but there were still intermittent boot problems - sometimes it will take
3 or 4 tries to get Linux to boot.

We will try a BIOS update, and I'll try to get a complete list of the
combinations we've tried and results...

C.

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