Comment 4 for bug 260868

Some more update:

I was using the following boot options:

noquiet nosplash acpi=off

After that, I was able to read the messages, probably because acpi=off prevents the reboot.

It stopped at

io scheduler cfq (registered)

I have disabled legagy USB support in the BIOS of the latop, after that, I got beyond this point.

I played a bit with various options and it looks like at least

nosplash and
acpi=off

are required in order to boot.

I have also seen a strange message:

sda<4>:Driver 'sr' needs updating - please use buy_type methods

together with some I/O errors on sr1.

Not sure what that means.

Interesting enough, neither just acpi=off nor nosplash does not do the trick.

I should add that since reporting the bug, I have switched to the nightly build of the LiveCD from Oct 9th, 2008.

Of course it would be nice to

a) fix ACPI
b) fix the "io scheduler cfq (registered)" hang

But I have no idea how one might debug ACPI related problems, because as soon as the problem is there, the laptop will reboot and you cannot access it anymore.