After problems with linux software raid have been fixed, I am unable to start using LVM again - no device nodes are created for logical volumes and virtual groups. My system is debian etch Please help - I am attaching vgdisplay and lvdisplay outputs root:/root# vgdisplay -vv Setting global/locking_type to 1 Setting global/locking_dir to /var/lock/lvm File-based locking enabled. Finding all volume groups /dev/ram0: No label detected /dev/md0: No label detected /dev/ram1: No label detected /dev/md1: No label detected /dev/ram2: No label detected /dev/sda2: No label detected /dev/md2: lvm2 label detected Incorrect metadata area header checksum /dev/ram3: No label detected /dev/ram4: No label detected /dev/ram5: No label detected /dev/ram6: No label detected /dev/ram7: No label detected /dev/ram8: No label detected /dev/ram9: No label detected /dev/ram10: No label detected /dev/ram11: No label detected /dev/ram12: No label detected /dev/ram13: No label detected /dev/ram14: No label detected /dev/ram15: No label detected /dev/sdb2: No label detected /dev/sdc2: No label detected Locking /var/lock/lvm/V_vg-array5 RB Finding volume group "vg-array5" /dev/md2: lvm2 label detected Incorrect metadata area header checksum /dev/md2: lvm2 label detected Incorrect metadata area header checksum Incorrect metadata area header checksum WARNING: Volume group "vg-array5" inconsistent --- Volume group --- VG Name vg-array5 System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 6 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 594.17 GB PE Size 4.00 MB Total PE 152107 Alloc PE / Size 152107 / 594.17 GB Free PE / Size 0 / 0 VG UUID 89aSmX-bREo-1nEu-yW7s-0UAF-adKn-sIOJ1D --- Logical volume --- LV Name /dev/vg-array5/lv-array5 VG Name vg-array5 LV UUID aStagy-newt-4p75-XM25-EOlx-mfS7-mRAKbI LV Write Access read/write LV Status NOT available LV Size 594.17 GB Current LE 152107 Segments 1 Allocation inherit Read ahead sectors 0 --- Physical volumes --- PV Name /dev/md2 PV UUID 0QcJ3N-gT87-U00u-DWP1-zBLM-6Rff-PdwxSe PV Status allocatable Total PE / Free PE 152107 / 0 Unlocking /var/lock/lvm/V_vg-array5 root:/root# lvdisplay -vv Setting global/locking_type to 1 Setting global/locking_dir to /var/lock/lvm File-based locking enabled. Finding all logical volumes /dev/ram0: No label detected /dev/md0: No label detected /dev/ram1: No label detected /dev/md1: No label detected /dev/ram2: No label detected /dev/sda2: No label detected /dev/md2: lvm2 label detected Incorrect metadata area header checksum /dev/ram3: No label detected /dev/ram4: No label detected /dev/ram5: No label detected /dev/ram6: No label detected /dev/ram7: No label detected /dev/ram8: No label detected /dev/ram9: No label detected /dev/ram10: No label detected /dev/ram11: No label detected /dev/ram12: No label detected /dev/ram13: No label detected /dev/ram14: No label detected /dev/ram15: No label detected /dev/sdb2: No label detected /dev/sdc2: No label detected Locking /var/lock/lvm/V_vg-array5 RB /dev/md2: lvm2 label detected Incorrect metadata area header checksum /dev/md2: lvm2 label detected Incorrect metadata area header checksum Incorrect metadata area header checksum Unlocking /var/lock/lvm/V_vg-array5 Volume group "vg-array5" inconsistent Locking /var/lock/lvm/V_vg-array5 WB /dev/md2: lvm2 label detected Incorrect metadata area header checksum /dev/md2: lvm2 label detected Incorrect metadata area header checksum Incorrect metadata area header checksum Inconsistent metadata copies found - updating to use version 6 Incorrect metadata area header checksum Automatic metadata correction failed Unlocking /var/lock/lvm/V_vg-array5 Device '/dev/md2' has been left open. _______________________________________________ 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/