gptids are not symlinks to /dev/da*

Warren Block wblock at
Mon Feb 24 22:55:36 UTC 2014

On Mon, 24 Feb 2014, Chris Stankevitz wrote:

> Warren,
> Thank you for your reply.
> On Mon, Feb 24, 2014 at 11:26 AM, Warren Block <wblock at> wrote:
>> Not device name, but a label.  Although the correct one should work in place
>> of a device name.  I use GPT partition labels, but have never bothered with
>> the GUIDs.
>> ...
>> Generated when the structure is created, I think.
> Now I just need to find out what is "GPT patition label", a "GUID",
> and "structure creation"!  I will read glabel(8) and see if that
> clears it up for me. is pretty good.

>> smartctl wants a device, but GPTIDs refer to partitions.
> Okay, although I am a bit surprised to hear that a GPTID refers to a
> partition.  I'm using FreeNAS and I thought I instructed the zpool to
> consist entirely of unpatitioned disks.  I gather that FreeNAS is,
> somewhere in the process, creating partitions which triggers
> "structure creation" which creates unique GPTIDs.

Probably.  One problem with canned single-purpose software like FreeNAS 
is that it is not as transparent as using FreeBSD directly.

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