doug at doug at
Wed Oct 19 18:23:42 UTC 2011

On Wed, 19 Oct 2011, Lowell Gilbert wrote:

> doug at writes:
>> On Wed, 19 Oct 2011, Lowell Gilbert wrote:
>>> doug at writes:
>>>> I have a system with two physical disks with a version of FreeBSD
>>>> installed on each disk. With various 7.x systems I had:
>>>>   F1 disk1 on slices ads5x
>>>>   F5 disk2 on slices ads6x
>>>> I installed 8.2 on disk2, incorrectly saying leave the mbr alone. So
>>>> when I boot from the second disk I get
>>>>   F6 PXE
>>>>   Boot:  F1
>>>> I can then hit F1 or wait and all goes okay. I tried using sysinstall
>>>> to rewrite the FBSD boot manager but that not effect any change. Must
>>>> I rewrite the mbr on disk 1 also?
>>> That's what I would expect to have to do...
>> Pre 8.2 the behavior the selected system just boot without the extra
>> message. I had a 7.0 and a 7.4 system installed. I replaced the 7.4
>> system with 8,2 With the boot setup I understand the FreeBSD boot
>> manager would be on sector 0 track 0 of disk 1. The boot record for
>> disk 1 is in the first logical sector for the drive. The boot record
>> for disk 2 should be similarly placed on disk 2.
>> What I think is missing is putting the boot manager on disk 2. If that
>> is the case, is there a way to do that without reinstalling?
> boot0cfg(8) from the system that does boot.
> Or boot in "rescue" mode from a CD (or other removable media)
> and use sysinstall.


Douglas Denault
doug at
Voice: 301-217-9220
   Fax: 301-217-9277

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