Date: Fri, 21 Jan 2011 12:19:00 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: Gpart and gmirror 8.2 from 18 januari Message-ID: <ihbq34$ahc$1@dough.gmane.org> In-Reply-To: <57200BF94E69E54880C9BB1AF714BBCBDD3043@w2003s01.double-l.local> References: <57200BF94E69E54880C9BB1AF714BBCBDD3043@w2003s01.double-l.local>
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On 19/01/2011 12:30, Johan Hendriks wrote: > Hello all, i used to have disk configured with gpart and gmirror. > > > > But with the latest 8.2, my server will not boot anymore if i label the > disk with gmirror. > > > > Gpart status > > Name Status Components > > ad4p1 OK ad4 > > Then i do a gmirror label -v -b load gm0 /dev/ad4 > > > Edit /etc/fstab > > And change /dev/ad4px to /dev/mirror/gm0px > > > I reboot, and it hangs when tring to Mount the root device. > > I get an error about an corrupt gpt label. Yes, GPT has the unfortunate property that it records its data both at the beginning of a drive and at the end, so you cannot use it this way (because gmirror wants the last sector for itself). I haven't tried it but I think from the GPT specification that it records where the secondary table is, so maybe you could do it the other way around: first do a gmirror configuration, then create GPT partitions within the gmirror device (i.e. on /dev/mirror/gm0, not on /dev/ad4).
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