"gpart set -a active" not changing boot loader

[Uffe Jakobsen]

On 2011-08-16 20:16, Ask Bjørn Hansen wrote:
>
> # gpart set -a active -i 2 ad0
> active set on ad0s2
>
> `gpart show` confirms that it was done.
>
> However, when booting I get:
>
> 1   FreeBSD
> 2   FreeBSD
>
> Default: 1
>
> … and `gpart show` now shows the first partition as the active one.
>
> Is my boot loader too old or some such?   This is a NanoBSD system that might have been upgraded since some 6.x version.
>

boot0 setting and the active partition mark in the partition table is 
having the usual disagreements... I've never come around to get the 
completely picture of the problem - but see the problem it quite ofent.

Display boot0 settings:
boot0cfg -v /dev/ad0

Update boot0 settings to reflect your gpart wish:
boot0cfg -v -s 2 /dev/ad0

/Uffe