diskid documentation

[Nathan Whitehorn]

On 06/02/14 15:32, Allan Jude wrote:
> On 2014-06-02 11:50, Kurt Lidl wrote:
>>> On Mon, Jun 2, 2014 at 9:26 AM, Allan Jude <allanjude at freebsd.org>
>>> wrote:
>>>> It also tends to sometimes hide the gpt label provider on me (not sure
>>>> in which cases it does this, but it is annoying)
>>> This happens when something (e.g. zfs) happens to open the diskid
>>> provider instead of the gpt label.  For me this ended up being a bit
>>> more than annoying; my swap was mounted in /etc/fstab via a gpt label
>>> so I silently lost my swap when I did an upgrade.
>> I have seen this too, starting from a fresh install.
>>
>> The install process for stable/10 writes a /dev/gpt style label
>> into /etc/fstab for the swap space, and that never gets used,
>> because the /dev/diskid/xxxx stuff appears to take precedence.
>>
>> I put the following into /boot/loader.conf to make the system more
>> sane:
>>
>> kern.geom.label.disk_ident.enable=0
>>
>> -Kurt
>>
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> I have a patch for the installer that solves this issue by explicitly
> using /dev/adaXpY or adaXsYb etc
>
> I thought the label was a nice way to do it, but it backfired.
>

Oh, zfsboot uses labels? The UFS partition editor never has, mostly for 
this reason. Sorry for spreading misinformation -- I'm not really 
familiar with the ZFS code.
-Nathan