I've got a strange problem: fresh install of Fedora 11 x86_64, with three disks (wiped them all for the install). sda has 2 partitions (/boot is one), sdb and sdc each have one partition. After booting, the root filesystem works, but the lvm system is complaining that it can't find the device that is supposed to be /dev/sda2. So I can't do any lvm operations: --------------------------------- # pvscan Couldn't find device with uuid 'xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh'. PV unknown device VG vg_xxx lvm2 [136.63 GB / 126.88 GB free] PV /dev/sdb1 VG vg_xxx lvm2 [136.73 GB / 97.66 GB free] PV /dev/sdc1 lvm2 [136.73 GB] Total: 3 [410.09 GB] / in use: 2 [273.36 GB] / in no VG: 1 [136.73 GB] --------------------------------- The partition table on sda appears to have an anomaly: --------------------------------- # fdisk -l /dev/sda Disk /dev/sda: 146.8 GB, 146815733760 bytes 255 heads, 63 sectors/track, 17849 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00000080 Device Boot Start End Blocks Id System /dev/sda1 * 1 26 204800 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 26 17849 143167261 8e Linux LVM --------------------------------- # fdisk -l /dev/sdb Disk /dev/sdb: 146.8 GB, 146815733760 bytes 255 heads, 63 sectors/track, 17849 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00000081 Device Boot Start End Blocks Id System /dev/sdb1 1 17849 143372061 8e Linux LVM --------------------------------- The system is working, but I can't add more LVs to the VG until this gets fixed. I can't remove the device either: --------------------------------- # vgreduce vg_xxx /dev/sda2 Couldn't find device with uuid 'xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh'. Physical Volume "/dev/sda2" not found in Volume Group "vg_xxx" # pvmove /dev/sda2 No physical volume label read from /dev/sda2 Physical volume /dev/sda2 not found --------------------------------- # pvdisplay Couldn't find device with uuid 'xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh'. Couldn't find device with uuid 'xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh'. --- Physical volume --- PV Name unknown device VG Name vg_xxx PV Size 136.63 GB / not usable 1.83 MB Allocatable yes PE Size (KByte) 4096 Total PE 34977 Free PE 32481 Allocated PE 2496 PV UUID xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh Couldn't find device with uuid 'xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh'. --- Physical volume --- PV Name /dev/sdb1 VG Name vg_xxx PV Size 136.73 GB / not usable 3.78 MB Allocatable yes PE Size (KByte) 4096 Total PE 35002 Free PE 25002 Allocated PE 10000 PV UUID KEO2PO-W0YO-xnl1-c6wc-VtFe-EDRK-4UkLFS "/dev/sdc1" is a new physical volume of "136.73 GB" --- NEW Physical volume --- PV Name /dev/sdc1 VG Name PV Size 136.73 GB Allocatable NO PE Size (KByte) 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID VNK8oq-Ydrf-WsI5-tvR9-QhLy-ZOgm-tt6A7l --------------------------------- I even tried the 'dangerous' operation here: http://tldp.org/HOWTO/LVM-HOWTO/recovermetadata.html, but to no avail: --------------------------------- # pvcreate --uuid "xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh" --restorefile /etc/lvm/archive/vg_xxx_00000.vg /dev/sda2 Couldn't find device with uuid 'xeGSsL-9YAf-13lC-Uy4y-L3en-8YdG-Pxo8Uh'. Physical extents end beyond end of device /dev/sda2! /dev/sda2: Format-specific setup of physical volume failed. Failed to setup physical volume "/dev/sda2" --------------------------------- It looks like some of the extents on my "unknown device" are used, so just removing it by force would most likely render my system unusable. My best guess is that the 'cylinder boundary' issue with the partition table is to blame, so in the morning I'm going to just fdisk manually to ensure that the partitions are better aligned, and just re-install. If anyone has a crazy / dangerous suggestion, I'll try it (I've nothing to lose, except re-install time, and it looks like I'll be paying that price anyway). But you'll have to post before about 9am eastern ;-) Matt _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
