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Date:      Tue, 6 Jan 2015 13:00:51 -0600
From:      Bob Willcox <bob@immure.com>
To:        Warren Block <wblock@wonkity.com>
Cc:        Kevin Oberman <rkoberman@gmail.com>, Chris H <chrish@ultimatedns.net>, FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>
Subject:   Re: I need some swap partion help on new 10.1 install
Message-ID:  <20150106190051.GA62395@rancor.immure.com>
In-Reply-To: <alpine.BSF.2.11.1501060905580.24390@wonkity.com>
References:  <20150103172527.GI867@rancor.immure.com> <745af5f28074a940e743f6094be15991@ultimatedns.net> <CAN6yY1tAZfp-nDqhYrd63hcxA%2BBKayF3FypOeNvk5cY3e125sg@mail.gmail.com> <54A88D7B.8010901@protected-networks.net> <alpine.BSF.2.11.1501041836540.33242@wonkity.com> <20150105225028.GC57206@rancor.immure.com> <alpine.BSF.2.11.1501051957390.30334@wonkity.com> <CAN6yY1tqs4cNN36Nu6%2BaA5adMOnGVgCLpF7xbqTKcSuXhRbzQw@mail.gmail.com> <20150106155623.GA61837@rancor.immure.com> <alpine.BSF.2.11.1501060905580.24390@wonkity.com>

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On Tue, Jan 06, 2015 at 09:11:19AM -0700, Warren Block wrote:
> On Tue, 6 Jan 2015, Bob Willcox wrote:
> 
> > So, what should I put in /boot/loader.conf? Can I enable both GPT and GPT IDs
> > with this:
> >
> > kern.geom.label.gpt.enable="1"
> > kern.geom.label.gptid.enable="1"
> >
> > And if I do, should I expect any problems with doing that?
> 
> Both are enabled by default.  Disabling GPTID can remove some confusion, 
> but is not required.
> 
> Make certain the swap partition has a GPT label.  'gpart show -l' shows 
> them.  If it does not have one, set one with gpart modify.
> 
> Then use that label in fstab, in the form of /dev/gpt/labelname.

Well, here's what I have on the system currently:

bob@maul:7 /home/bob> sysctl -a |grep label\\.gpt
kern.geom.label.gpt.enable: 1
kern.geom.label.gptid.enable: 0

bob@maul:7 /home/bob> gpart show -l        
=>       34  488397101  diskid/DISK-S21NNSAFC51114F  GPT  (233G)
         34       1024                            1  gptboot0  (512K)
       1058   16777216                            2  swap0  (8.0G)
   16778274  471618861                            3  zfs0  (225G)

So is this to be expected? Is it the gptid setting that creates the /dev/ada0
entries?

I have another system here that has a UFS root disk and another disk that's a
ZFS disk. It is also a recent 10.1 install and it's output looks like this:

bob@tavion:5 /home/bob> sysctl -a |grep label\\.gpt
kern.geom.label.gpt.enable: 1
kern.geom.label.gptid.enable: 1

bob@tavion:5 /home/bob> gpart show -l
=>       34  976773101  ada0  GPT  (466G)
         34          6        - free -  (3.0K)
         40   16777216     1  (null)  (8.0G)
   16777256  959995872     2  (null)  (458G)
  976773128          7        - free -  (3.5K)

=>       34  156301421  ada1  GPT  (75G)
         34       1024     1  (null)  (512K)
       1058  148896768     2  (null)  (71G)
  148897826    7403628     3  (null)  (3.5G)
  156301454          1        - free -  (512B)

=>       1  31266815  da0  MBR  (15G)
         1        31       - free -  (16K)
        32  31266784    1  (null)  (15G)

=>       1  31266815  diskid/DISK-4C530011940607120335  MBR  (15G)
         1        31                                    - free -  (16K)
        32  31266784                                 1  (null)  (15G)


-- 
Bob Willcox    | Men who cherish for women the highest
bob@immure.com | respect are seldom popular with them.
Austin, TX     |         -- Joseph Addison




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