Active slice, only for a next boot

[Chris Rees]

On 28 May 2011 10:04, "Julian Elischer" <julian at freebsd.org> wrote:
>
> On 5/27/11 11:34 AM, Warner Losh wrote:
>>
>> On May 27, 2011, at 10:47 AM, rank1seeker at gmail.com wrote:
>>
>>> ----- Original Message -----
>>> From: Alexander Best<arundel at freebsd.org>
>>> To: rank1seeker at gmail.com
>>> Cc: hackers at freebsd.org
>>> Date: Fri, 27 May 2011 13:47:54 +0000
>>> Subject: Re: Active slice, only for a next boot
>>>
>>>> On Fri May 27 11, rank1seeker at gmail.com wrote:
>>>>>
>>>>> Idea is ...
>>>>> I have i.e; 3 slices, of which first is active.
>>>>> Now I wana set slice 2 active, but only for a one/next boot.
>>>>> Once slice 2 is booted and system is shutdown or rebooted, once again,
>>>
>>> first slice is active and booted, without user's intervention.
>>>>>
>>>>> Is this possible or should be implemented?
>
>
> nextboot(8) USED to do this before it was broken by someone to "look into
the filesystem"
> for it's next boot hint which is obviously broken if you are trying to get
to another filesystem
> because the main one is broken.
>

Doesn't sound that useful to me- I think of the main use for nextboot being
to try new kernels on a one-time basis. If you're rescuing a broken
filesystem surely it's better to just set another slice active?

Chris