Re: 5.x separate /boot slice?
From: Garance A Drosehn (gad_at_FreeBSD.org)
Date: 08/05/05
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Date: Thu, 4 Aug 2005 19:35:44 -0400 To: Michael Dexter <dexter@ambidexter.com>, freebsd-questions@FreeBSD.org
At 12:56 AM +0300 8/5/05, Michael Dexter wrote:
>>> I would like to try a separate /boot slice as permitted
>>>by FreeBSD 5.x...
I missed the beginning of this thread. Where did you get the
impression that FreeBSD will work if you create /boot as a
separate partition?
>>Search the list. This comes up about once a month, and I've
>>yet to see anyone succeed.
It came up on this very mailing list back on July 19th, with
the subject of: 'Re: /boot on a separate partition'
>>Aside from "it's the way Linux does it", do you have any good
>>reason for wanting this?
>
>All of my questions seem to generate that response. :) Trust me,
>they are informed questions. In short:
>I was thinking that previous and updated kernels could both coexist
>in /boot and a second root slice (plus usr ... as appropriate) could
>be mounted under /mnt and receive a fresh installation of the updated
>OS, rather than a overlay that requires mergemastering. ....
>In some respects this is a question of dual-booting FreeBSD and
>FreeBSD and I was hoping to share some partitions that are not
>affected by the update process, likely including var and tmp.
But why does that shared partition have to be '/boot', and not '/'?
FreeBSD tends to have a small-ish '/' partition, and then have
separate partitions for /var and /usr, and often for /tmp.
I do exactly what you'd like to do, but the partition I duplicate
is '/'. I have a '/' partition and a '/xRoot' partition, and I
use FreeBSD's snapshot feature (in 5.x and better) to duplicate
that partition into /xRoot. This gives me a nice backup of
/boot, /root, and /etc. I then upgrade the running system. It
seems to work fine for me. This is where we get back to the
question, "Why *must* your goal be done using a separate
partition for '/boot'?".
I do not mean that to be a hostile question. I'm just saying
that I seem to be doing exactly what you want to do, and I've
never needed a separate /boot partition to do it.
The one trick involved is that you duplicate '/' to '/xRoot',
and then you have to remember to change '/xRoot/etc/fstab' so
that it points to itself as the '/' partition... I do that
in a script, so that change is handled automatically...
-- Garance Alistair Drosehn = gad@gilead.netel.rpi.edu Senior Systems Programmer or gad@FreeBSD.org Rensselaer Polytechnic Institute; Troy, NY; USA _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
- Previous message: Lucas Holt: "Trying to use FreeBSD as a home router, how to setup VOIP to pass through?"
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