Date: Thu, 24 Apr 2008 10:21:20 +0100 From: Doug Rabson <dfr@rabson.org> To: Marcel Moolenaar <xcllnt@mac.com> Cc: cvs-src@freebsd.org, src-committers@freebsd.org, cvs-all@freebsd.org, John Baldwin <jhb@freebsd.org> Subject: Re: cvs commit: src/sbin/gpt gpt.c Message-ID: <1B15246A-CA20-4448-B3AA-303C154D0729@rabson.org> In-Reply-To: <D88F8D5D-982D-417F-A3CB-8EE0B3A1F3EB@mac.com> References: <200804231848.m3NImajV044275@repoman.freebsd.org> <24ADF1BE-47FF-43DD-A189-10D876FBE515@rabson.org> <200804231509.31424.jhb@freebsd.org> <D88F8D5D-982D-417F-A3CB-8EE0B3A1F3EB@mac.com>
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On 23 Apr 2008, at 21:54, Marcel Moolenaar wrote: > > On Apr 23, 2008, at 12:09 PM, John Baldwin wrote: > >> On Wednesday 23 April 2008 02:54:40 pm Doug Rabson wrote: >>> >>> On 23 Apr 2008, at 19:48, John Baldwin wrote: >>> >>>> jhb 2008-04-23 18:48:36 UTC >>>> >>>> FreeBSD src repository >>>> >>>> Modified files: (Branch: RELENG_7) >>>> sbin/gpt gpt.c >>>> Log: >>>> MFC: Add 'zfs' as an alias for the FreeBSD ZFS UUID. >>> >>> Does it make sense to have a FreeBSD ZFS UUID? ZFS is a portable >>> filesystem format - shouldn't we use whatever UUID Solaris uses for >>> ZFS in GPT? >> >> That's a good question. Maybe pjd@ or marcel@ have opinions on the >> matter? > > There's no such UUID as far as I know, so I thought it safer > to create a FreeBSD-specific one because we already have > incompatibilities between operating systems for things like > UFS and BSD labels. While ZFS may be portable, I'm not at all > sure that different OSes are feature compatible and for that > it's good to know where the ZFS originates from. Also, we may > create an UUID with the intend that it's a common UUID, but > getting other OSes to use that UUID is far from easy. As far as I can make out from the Solaris source, it uses: 6a898cc3-1dd2-11b2-99a6-080020736631 V_USR Unfortunately it seems to use this UUID for lots of other things too. I think it sets the partition name to "zfs" for partitions that are part of a ZFS pool.
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