Problem booting 5.4
rduffner at ip-tech.ch
Sat May 14 13:19:56 PDT 2005
Doug White writes:
> On Thu, 12 May 2005, Rainer Duffner wrote:
>> I installed FreeBSD5.4 on a server with a 3ware 7006-2 controller and
>> two 120GB disks as RAID1
>> I cannot boot this install. (I get some kind of panic or endless loop,
>> but the display is re-painted so fast I cannot read it).
>> What I *can* do is insert my SuSE9.2-pro cd1, boot from that and at the
>> grub-menu say "boot from harddisk".
>> That boots FreeBSD.
>> On advice from IRC, I tried:
>> # boot0cfg -B twed0
>> -which leads to this output
>> boot0cfg: write_mbr: /dev/twed0: No such file or directory
> This is a erroneous message. The actual problem is:
> 484 boot0cfg NAMI "/dev/twed0"
> 484 boot0cfg RET open -1 errno 1 Operation not permitted
> This is a known problem with certain MBR layouts. To work around this
> problem, set:
> sysctl kern.geom.debugflags=16
> then try your boot0cfg. There's a protection mechanism that sometimes gets
> confused by certain partition table layouts. Flag 16 disables that
> protection. I don't recommend running this unless you are explicitly
> trying to updating something in a partition table-like area; its very easy
> to destroy your system with the flag set!
I booted from CD and ran the boot0cfg "offline" - however, this worked only
on one server. I have two more identical servers that now just beep
endlessly at the F1-prompt.
I was told it is a geometry problem, but what else can I do?
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