Subject: Re: GPT guids
To: Jeff Rizzo <>
From: matthew sporleder <>
List: tech-userlevel
Date: 12/16/2007 17:04:50
On 12/16/07, Jeff Rizzo <> wrote:
> Now that I'm doing my semiannual playing around with wedges and gpt and
> all that, I'm thinking about the fact that NetBSD doesn't yet have any
> GUIDs assigned specifically for our use - we're using FreeBSD's UFS ID
> by default.
> Now, I'm not nearly as knowledgeable about this as some folks that I
> hope will pipe up in this discussion, but re-using FreeBSD's ID seems
> like we're just asking to duplicate the whole "MBR partition type 165 vs
> 169" situation.  Unless I'm very much mistaken, our UFS isn't exactly
> like FreeBSD's - plus, there's times when you want to be able to tell
> for certain what OS is on a disk without having to look at its contents.
> In addition, we need to assign numbers for some other types - RAID, LFS
> - others folks can think of?  I think we should do something along the
> lines of what FreeBSD did - pick a base GUID to indicate "NetBSD", and
> increment one of the digits for various types therein.

Sounds like a smart idea.  What can it hurt to have some space set
aside for netbsd?