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Date:      Sat, 15 Feb 2020 17:50:34 +1100
From:      Dewayne Geraghty <dewayne@heuristicsystems.com.au>
To:        David Christensen <dpchrist@holgerdanske.com>, freebsd-questions@freebsd.org
Subject:   Re: some questions about disk partitioning and filesystems and booting
Message-ID:  <d3251644-7b0f-7b5e-7c97-f38b0db62304@heuristicsystems.com.au>
In-Reply-To: <091dd3af-7b99-267f-7d04-541b6d651926@holgerdanske.com>
References:  <20200213150229.GC14144@bastion.zyxst.net> <091dd3af-7b99-267f-7d04-541b6d651926@holgerdanske.com>

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David,
Two small points:
when using "glabel status" I can see both the glabel assigned label and
the tunefs file system label on an MBR usb drive

         label/ss1     N/A  da0s2d
           ufs/ss1     N/A  da0s2d
        label/keys     N/A  da0s2e
          ufs/keys     N/A  da0s2e
perhaps its an enhancement on my 12.1Stable system? :)

In regard to running without swap and crashing, you may have overlooked
setting:
vm.swap_enabled=0
vm.nswapdev=0
(taken from a system without swap that's been running for a few years)

My use of swap, like you, is limited to wanting a mini kernel dump, and
using swap space for memory devices (mdconfig).  Though I do have swap
on another disk when I really need all of memory to be dumped, which has
been about once in 10 years ;)

Cheers.



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