pivot_root() and FreeBSD

[Julian Elischer]

On 8/3/15 3:13 PM, Adrian Chadd wrote:
> .. and it won't work for upgrading routers, as the MIPS things don't use loader.

it can also be compiled into the kernel...
I've done that... a picobsd filesystem linked into the kernel

grub can also handle it if grub works on mips.
>
> On 3 August 2015 at 00:11, Edward Tomasz Napierała <trasz at freebsd.org> wrote:
>> On 0803T1148, Julian Elischer wrote:
>>> On 3/4/15 12:51 AM, Dirk-Willem van Gulik wrote:
>>>> I am trying to do, in effect an PXE boot/install on a local volume - and would like the machine to cut over into normal running without a reboot*.
>>>>
>>>> So effectively I would like to do the equivalent of pivot_root() and perhaps something special for init(8), and then jettison md, nfs and what not.
>>>>
>>>> Is there any way to do this on 10.1 or -current ? Or has anyone recently done work on Adrian Steinmann his 'Pivot Root for BSD’** ?
>>>>
>>>> Thanks,
>>> there is SOME work going on on a similar thing.. It was in the recent
>>> project status.
>>>
>>> https://www.freebsd.org/news/status/report-2015-04-2015-06.html#Root-Remount
>>>
>>> Also have you tried simply using a small memory filesystem loaded with
>>> the kernel?
>> Note that this functionality is kind of broken as well:
>>
>> https://reviews.freebsd.org/D3204
>>
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>