Date: Thu, 26 Nov 2009 14:19:18 +0200 From: Andriy Gapon <avg@icyb.net.ua> To: "James R. Van Artsdalen" <james-freebsd-fs2@jrv.org> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: kernel update svn 195757->199260, zpool.cache prevents boot Message-ID: <4B0E7246.8090102@icyb.net.ua> In-Reply-To: <4B0E51DE.1090707@jrv.org> References: <4B0E51DE.1090707@jrv.org>
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on 26/11/2009 12:01 James R. Van Artsdalen said the following: > I upgraded a ZFS system from svn 195757 to 199260 and it would not > boot. Booting from UFS reported a corrupt pool with many faulted > devices and vdevs. > > It turns out that the pool was fine and that zpool.cache was the > problem: it was depending on the drive names being immutable but they > changed between svn 195757 and 199260 for me (and will for many or most > people 7.2->8.0 using the new AHCI driver) > > Why not have GEOM record the ZFS GUID of each leaf dev when GEOM > "tastes" the drive (similar to the way GEOM does that for UFS today), > and then use the GUID field from zpool.cache to find the disk instead of > the PATH field? I don't see that ever failing. Hmm, I thought that FreeBSD ZFS already did something like that. -- Andriy Gapon
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