Date: Tue, 13 Dec 2005 07:47:34 -0600 From: Eric Anderson <anderson@centtech.com> To: Mark Bucciarelli <mark@gaiahost.coop> Cc: freebsd-geom@freebsd.org Subject: Re: How to recover a gmirror from a disaster Message-ID: <439ED0F6.2070507@centtech.com> In-Reply-To: <20051213131637.GC2188@rabbit> References: <20051213131637.GC2188@rabbit>
next in thread | previous in thread | raw e-mail | index | archive | help
Mark Bucciarelli wrote: >The disaster: > > 1. gmirror setup (full disk mirror, da0 + da1) > > 2. disk head crash into platter on da1 > > 3. reboot > > 4. mirror starts to sync, hits bad spot on da1, halts > > 5. restart (can work for a while b/f bad spot hit) > > 6. Enter command "gmirror remove gm0 da1" > > 7. Now on restart, da0 will not boot. > >On attempting boot on da0, this is the last output b/f system hangs: > > GEOM_MIRROR: Device gm0 created (id=...) > GEOM_MIRROR: Device gm0: provider da0 detected > GEOM_MIRROR: Device gm0 destroyed > GEOM_MIRROR: Device gm0 created (id=...) > GEOM_MIRROR: Device gm0: provider da0c detected > GEOM_MIRROR: Device gm0 destroyed > GEOM_MIRROR: Device gm0 created (id=...) > GEOM_MIRROR: Device gm0: provider da0 detected > GEOM_MIRROR: Device gm0 destroyed > SMP: AP CPU #1 Launched! > Mounting root from ufs:/dev/mirror/gm0s1a > setrootbyname failed > ffs_mountroot: can't find rootvp > Root mount failed: 6 > >This is 5.4-RELEASE. > >The da0 disk is good (I did a surface scan) and I can mount it and >backup the data when I put it in bay #2. > >So ... > > Did my command in step #6 cause this mess? If so, what should I > have used--forget first? > > How can I get this disk to boot again? > > I think you wanted to do a 'forget'.. Can you set root to /dev/da0s1a, boot up, and then check gmirror status? Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?439ED0F6.2070507>