[CentOS] 5.6 is out, great my first upgrade didn't work...

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>> Please post a follow-up, I'm curious what went wrong. :)
>>
> Maybe your server is hanging at fsck recovery shell waiting for root
> password (or user interaction).
Probably that.

> Do you have a option to reboot you system into rescue mode or better a
> KVM over IP ?
Sorry, no, that server was not bought with rmm3 from intel, so we don't 
have a kvm for it. I'll repost on monday to let you know what it was.