Date: Wed, 12 Jan 2005 20:54:02 -0600 From: Doug Poland <doug@polands.org> To: questions@freebsd.org Subject: gmirror problem on 5.3-R i386 Message-ID: <20050113025339.GC1218@polands.org>
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Hello, I'm having a problem with gmirror. It would seem that I cannot add my first disk to the mirror after booting off the second drive. My current status is a degraded mirror and I cannot see any of the partitions on disk one. For a guide, I'm using the excellent instructions at: http://people.freebsd.org/~rse/mirror/ My system has identical WD 80GB SATA drives (ad4 and ad6). I've followed the steps in the document that are labeled: "GEOM mirror Approach 2: Single Slice, Preferred, More Flexible" # dd if=/dev/zero of=/dev/ad6 bs=512 count=79 # fdisk -v -B -I /dev/ad6 # gmirror label -v -n -b round-robin gm0s1 /dev/ad6s1 # gmirror load # bsdlabel -w -B /dev/mirror/gm0s1 # bsdlabel -e /dev/mirror/gm0s1 # newfs -U /dev/mirror/gm0s1a # mount /dev/mirror/gm0s1a /mnt # dump -L -0 -f- / | (cd /mnt; restore -r -v -f-) # newfs -U /dev/mirror/gm0s1d # mount /dev/mirror/gm0s1d /mnt/var # dump -L -0 -f- /var | (cd /mnt/var; restore -r -v -f-) # newfs -U /dev/mirror/gm0s1e # mount /dev/mirror/gm0s1e /mnt/tmp # dump -L -0 -f- /tmp | (cd /mnt/tmp; restore -r -v -f-) # mount /dev/mirror/gm0s1f /mnt/usr # dump -L -0 -f- /usr | (cd /mnt/usr; restore -r -v -f-) # cp -p /mnt/etc/fstab /mnt/etc/fstab.orig # sed -e 's/dev\/ad4s1/dev\/mirror\/gm0s1/g' </mnt/etc/fstab.orig # echo 'swapoff="YES"' >>/mnt/etc/rc.conf # echo 'geom_mirror_load="YES"' >>/mnt/boot/loader.conf # echo "1:ad(6,a)/boot/loader" >/boot.config # shutdown -r now # dd if=/dev/zero of=/dev/ad4 bs=512 count=79 # gmirror configure -a gm0s1 # gmirror insert gm0s1 /dev/ad4s1 At this point I see... "Unknown provider ad4s1" A gmirror list reveals: Geom name: mirror State: DEGRADED Components: 2 Balance: load Slice: 2048 Flags: NONE SyncID: 2 ID: 4216140117 Providers: 1. Name: mirror/mirror Mediasize: 80026361344 (75G) Sectorsize: 512 Mode: r0w0e0 Consumers: 1. Name: ad4 Mediasize: 80026361856 (75G) Sectorsize: 512 Mode: r0w0e0 State: ACTIVE Priority: 0 Flags: NONE SyncID: 2 ID: 3073402045 Geom name: mirror.sync Geom name: gm0s1 State: COMPLETE Components: 1 Balance: round-robin Slice: 4096 Flags: NONE SyncID: 1 ID: 3205827760 Providers: 1. Name: mirror/gm0s1 Mediasize: 80026329088 (75G) Sectorsize: 512 Mode: r5w5e1 Consumers: 1. Name: ad6 Mediasize: 80026361856 (75G) Sectorsize: 512 Mode: r5w5e2 State: ACTIVE Priority: 0 Flags: DIRTY SyncID: 1 ID: 1606771156 Geom name: gm0s1.sync Here's a snippet of /var/log/messages after the first reboot: Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1 created (id=3205827760). Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 detected. Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 activated. Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider mirror/gm0s1 launched. Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device mirror created (id=4216140117). Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 detected. Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Force device mirror start due to timeout. Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Cannot update metadata on disk ad4 (error=1). Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 activated. Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider mirror/mirror launched. Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Cannot update metadata on disk ad4 (error=1). Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 disconnected. Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider mirror/mirror destroyed. Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror destroyed. Jan 12 17:57:32 webhost02 syslogd: kernel boot file is /boot/kernel/kernel Subsequent reboots reveal: Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror created (id=4216140117). Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 detected. Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1 created (id=3205827760). Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 detected. Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 activated. Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider mirror/gm0s1 launched. Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Force device mirror start due to timeout. Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 activated. Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror: provider mirror/mirror launched. Jan 12 17:57:32 webhost02 kernel: Mounting root from ufs:/dev/mirror/gm0s1a Here's my bsdlabels, if that helps: webhost02# bsdlabel /dev/mirror/gm0s1 # /dev/mirror/gm0s1: 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 524288 0 4.2BSD 2048 16384 32776 b: 4142160 524288 swap c: 156301424 0 unused 0 0 # "raw" part, don't edit d: 16777216 4666448 4.2BSD 2048 16384 28552 e: 2097152 21443664 4.2BSD 2048 16384 28552 f: 132755506 23540816 4.2BSD 2048 16384 28552 webhost02# bsdlabel /dev/ad6 # /dev/ad6: 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 524288 0 4.2BSD 2048 16384 32776 b: 4142160 524288 swap c: 156301424 0 unused 0 0 # "raw" part, don't edit d: 16777216 4666448 4.2BSD 2048 16384 28552 e: 2097152 21443664 4.2BSD 2048 16384 28552 f: 132755506 23540816 4.2BSD 2048 16384 28552 bsdlabel: partition c doesn't cover the whole unit! bsdlabel: An incorrect partition c may cause problems for standard system utilities webhost02# bsdlabel /dev/ad4 bsdlabel: /dev/ad4: no valid label found Thanks for your help! -- Regards, Doug
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