what does "boot in safe mode" enable / disable?

[Henrik Hudson]

I emailed a few days back, to -stable,  about having issues running 8-STABLE in a
Xen environment. I solved this, sort of. However, I didn't get any
bites over there.

I have a XEN HVM environment and it was given to me running 8-REL-p2
and it was working fine. I moved up to -STABLE and GENERIC wouldn't
boot. After some fiddling, etc.. I tried booting it in "safe mode"
and viola it boots fine.

The system doesn't show any errors it just stops on "trying to mount
disk: /dev/xxxx". Enabling "logging mode" doesn't show any
difference between the stable kernel and the rel kernel when
booting.

So, I'm guessing there was some sort of regression, but I'm trying
to isolate this. What does "booting in safe mode" enable / disable
that would allow the system to boot successfully?

Thanks.

Henrik
-- 
Henrik Hudson
lists at rhavenn.net
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"God, root, what is difference?" Pitr; UF