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Date:      Mon, 16 Dec 2013 20:18:14 +0000
From:      "Teske, Devin" <Devin.Teske@fisglobal.com>
To:        Adam McDougall <mcdouga9@egr.msu.edu>
Cc:        "stable@FreeBSD.org" <stable@FreeBSD.org>, Devin Teske <dteske@freebsd.org>, "Teske, Devin" <Devin.Teske@fisglobal.com>
Subject:   Re: bsdinstall, zfs booting, gpt partition order suitable for volume expansion
Message-ID:  <73E28A82-E9FE-4B25-8CE6-8B0543183E7F@fisglobal.com>
In-Reply-To: <2D40298B-39FA-4BA9-9AC2-6006AA0E0C9C@fisglobal.com>
References:  <20131210175323.GB1728@egr.msu.edu> <93C924DB-E760-4830-B5E2-3A20160AD322@fisglobal.com> <2D40298B-39FA-4BA9-9AC2-6006AA0E0C9C@fisglobal.com>

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On Dec 14, 2013, at 7:44 PM, Teske, Devin wrote:

>=20
> On Dec 10, 2013, at 11:00 AM, Devin Teske wrote:
>=20
>>=20
>> On Dec 10, 2013, at 9:53 AM, Adam McDougall wrote:
>>=20
>>> I was wondering if either the default gpt partition order could become
>>> p1=3Dboot, p2=3Dswap, p3=3Dzpool, or if the installer could be enhanced=
 at
>>> some point to allow the user to select the order.  It seems like it wou=
ld
>>> be easier to expand the size of the raw device (VM, iscsi, etc) and exp=
and
>>> the zpool if it is the last partition.  I am not in a hurry to get this
>>> solved, but if a change to the default order is worthwhile, it seems li=
ke
>>> before 10.0 would be a good time to set precedent.  I'm trying to think=
 ahead
>>> where people will be installing 10 to VMs or expandable volumes so they=
 can
>>> take advantage of expansion with less hassle.  I pinged Allen Jude on t=
his
>>> briefly, I think he said it used to be that way but it was changed to
>>> accomodate MBR partitioning (I think, apologies for not remembering det=
ails).
>>=20
>> Excellent idea. Let me put that into a patch. I'll let you know when I h=
ave
>> something that tests clean.
>=20
> GPT proved trivial.
> MBR on the other hand... that proved challenging.
>=20
> While trying to best that challenge... I uncovered more than a couple nas=
ty bugs
> while iterating over every possible combination in the installer.
>=20
> That being said... I'm coming out of the "tunnel" since you sent this e-m=
ail and
> will soon have something to commit that implements this suggestion while =
at
> the same time, plugging a few edge-cases.

Alrighty-then... time to share...

Here's the commit that does what you want...

http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259476

But just keep in-mind that the whole ball of wax that I "tested to death"
is actually a combination of the following (in order):

http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259468
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259469
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259470
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259472
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259474
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259476
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259477
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259478
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259479
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259480
http://svnweb.freebsd.org/base?view=3Drevision&revision=3D259481

Needless to say, I'm going to take that break now.
--=20
Devin

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