Date: Tue, 27 Sep 2011 22:12:39 +0100 From: peter harrison <four.harrisons@googlemail.com> To: questions@freebsd.org Subject: GEOM_MIRROR GPT table corrupt or invalid Message-ID: <CAA3eX7YXUM03de8HJbYr2f_VBgvKsy-jSsFXAti=e72i6HK8jg@mail.gmail.com>
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Hello list, I have a problem with a software RAID1. This was created under Freenas 0.7.2 (using the web interface - FreeBSD 7.3 under the hood) which as I understand it uses GPT and GEOM_MIRROR. This Freenas is running on AMD64 on an ESXi 4.1 host with the 2 drives for the mirror passed through as raw disks to the Freenas guest - if that makes a difference. This mirror now fails to mount on boot. Checking the boot messages I see this straight after the drives are detected: GEOM: da1: the secondary GPT table is corrupt or invalid. GEOM: da1: using the primary only -- recovery suggested Further on I see: GEOM_MIRROR: Force device data start due to timeout GEOM_MIRROR: Device mirror/data launched (1/2) The mirror is not mounted when booting is completed - no further messages during boot - mount says: freenas:~# mount /dev/da0s1a on / (ufs, local, soft-updates) devfs on /dev (devfs, local) procfs on /proc (procfs, local) When I try to mount it manually I get a continually scrolling g_vfs error: g_vfs_done():mirror/datap1[READ(offset=-636932692096956416, length =16384)] error = 5 and the guest becomes unresponsive. GEOM isn't something I'm really familiar with - so any insight on how this happened would be interesting. But the main question is, is there anyway of getting the data off this disk? (I have some backups, but they're not complete). Thanks for any help. Peter Harrison.
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