I'm fairly new to LVM, but I've been having an intermittant problem that I hope someone can help me with.
Every few (2-10ish) reboots of my machine, my LV fails to be recognised. I'm running Debian Sid with: === 8< === [EMAIL PROTECTED]:~$ wajig status-match lvm Package Installed Previous Now State =======================-===============-===============-===============-===== lvm-common 1.5.20 1.5.20 1.5.20 install lvm2 2.01.04-5 2.01.04-5 2.01.04-5 install [... not-installed-stuff deleted ...] === >8 === My /home partition is set up as the logical volume. It is on the same physical disk as my root partition, so it is not a problem with the disk being recognised. Here is a transcript of a session where the LV /home does not mount: === 8< === [EMAIL PROTECTED]:~# mount /dev/hda5 on / type ext3 (rw,errors=remount-ro) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) tmpfs on /dev/shm type tmpfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/hda1 on /boot type ext3 (rw,errors=remount-ro) usbfs on /proc/bus/usb type usbfs (rw) tmpfs on /dev type tmpfs (rw,size=10M,mode=0755) [EMAIL PROTECTED]:~# pvs PV VG Fmt Attr PSize PFree /dev/hda4 vg lvm2 a- 57.94G 7.94G /dev/hda6 vg lvm2 a- 37.27G 37.27G [EMAIL PROTECTED]:~# lvs LV VG Attr LSize Origin Snap% Move Copy% vol1 vg -wi--- 50.00G [EMAIL PROTECTED]:~# mount /home mount: you must specify the filesystem type [EMAIL PROTECTED]:~# cat /etc/fstab # /etc/fstab: static file system information. # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 /dev/hda5 / ext3 defaults,errors=remount-ro 0 1 /dev/hda1 /boot ext3 defaults,errors=remount-ro 0 1 /dev/vg/vol1 /home auto defaults 0 0 /dev/hdc /media/cdrom0 iso9660 ro,user,noauto 0 0 /dev/hdd /media/cdrom1 iso9660 ro,user,noauto 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto 0 0 /dev/hda3 none swap sw 0 0 /dev/sda /media/flash auto rw,user,noauto 0 0 [EMAIL PROTECTED]:~# mount -t reiserfs /dev/vg/vol1 /home mount: special device /dev/vg/vol1 does not exist [EMAIL PROTECTED]:~# ls -l /dev/vg ls: /dev/vg: No such file or directory [EMAIL PROTECTED]:~# ls -l /dev/vg* crw-rw---- 1 root root 7, 0 2006-04-27 17:29 /dev/vcs crw-rw---- 1 root root 7, 1 2006-04-27 17:30 /dev/vcs1 crw-rw---- 1 root root 7, 2 2006-04-27 17:30 /dev/vcs2 crw-rw---- 1 root root 7, 3 2006-04-27 17:30 /dev/vcs3 crw-rw---- 1 root root 7, 4 2006-04-27 17:30 /dev/vcs4 crw-rw---- 1 root root 7, 5 2006-04-27 17:30 /dev/vcs5 crw-rw---- 1 root root 7, 6 2006-04-27 17:30 /dev/vcs6 crw-rw---- 1 root root 7, 7 2006-04-27 17:30 /dev/vcs7 crw-rw---- 1 root root 7, 128 2006-04-27 17:29 /dev/vcsa crw-rw---- 1 root root 7, 129 2006-04-27 17:30 /dev/vcsa1 crw-rw---- 1 root root 7, 130 2006-04-27 17:30 /dev/vcsa2 crw-rw---- 1 root root 7, 131 2006-04-27 17:30 /dev/vcsa3 crw-rw---- 1 root root 7, 132 2006-04-27 17:30 /dev/vcsa4 crw-rw---- 1 root root 7, 133 2006-04-27 17:30 /dev/vcsa5 crw-rw---- 1 root root 7, 134 2006-04-27 17:30 /dev/vcsa6 crw-rw---- 1 root root 7, 135 2006-04-27 17:30 /dev/vcsa7 [EMAIL PROTECTED]:~# vgscan Reading all physical volumes. This may take a while... /dev/hdc: open failed: No medium found Found volume group "vg" using metadata type lvm2 === >8 === So it seems the device is missing. If I now reboot however: === 8< === [EMAIL PROTECTED]:~# shutdown -r now [... stuff deleted ...] [EMAIL PROTECTED]:~# mount /dev/hda5 on / type ext3 (rw,errors=remount-ro) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) tmpfs on /dev/shm type tmpfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/hda1 on /boot type ext3 (rw,errors=remount-ro) /dev/mapper/vg-vol1 on /home type reiserfs (rw) usbfs on /proc/bus/usb type usbfs (rw) tmpfs on /dev type tmpfs (rw,size=10M,mode=0755) [EMAIL PROTECTED]:~# pvs PV VG Fmt Attr PSize PFree /dev/hda4 vg lvm2 a- 57.94G 7.94G /dev/hda6 vg lvm2 a- 37.27G 37.27G [EMAIL PROTECTED]:~# lvs LV VG Attr LSize Origin Snap% Move Copy% vol1 vg -wi-ao 50.00G [EMAIL PROTECTED]:~# ls -l /dev/vg* total 0 lrwxrwxrwx 1 root root 19 2006-04-27 18:01 vol1 -> /dev/mapper/vg-vol1 [EMAIL PROTECTED]:~# ls -l /dev/mapper/ total 0 crw-rw---- 1 root root 10, 63 2006-04-27 18:01 control brw------- 1 root root 254, 0 2006-04-27 18:01 vg-vol1 [EMAIL PROTECTED]:~# vgscan Reading all physical volumes. This may take a while... /dev/hdc: open failed: No medium found Found volume group "vg" using metadata type lvm2 === >8 === /home is back. I then checked dmesg and compared a good and bad session: === 8< === [EMAIL PROTECTED]:~# diff dmesg.ok dmesg.bad 25c25 < Detected 551.481 MHz processor. --- > Detected 551.217 MHz processor. 50,51c50,51 < ..... CPU clock speed is 551.0155 MHz. < ..... host bus clock speed is 100.0209 MHz. --- > ..... CPU clock speed is 551.0185 MHz. > ..... host bus clock speed is 100.0215 MHz. 132d131 < cdrom: open failed. 136,140d134 < ReiserFS: dm-0: found reiserfs format "3.6" with standard journal < ReiserFS: dm-0: using ordered data mode < ReiserFS: dm-0: journal params: device dm-0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 < ReiserFS: dm-0: checking transaction log (dm-0) < ReiserFS: dm-0: Using r5 hash to sort names === >8 === I've spent a fair bit of time Googling for an answer or at least someone else with the same problem, but so far have not found anything that looks similar. Can someone please assisst, or point me to an appropriate resource to get this fixed? Thanks, Ian. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
