[root@0-0-0:~] ls -l /dev/dm-3 brw-rw---- 1 root disk 253, 3 Feb 16 15:49 /dev/dm-3 [root@0-0-0:~] dmsetup ls system-drbd (253, 3) system-boot (253, 2) system-swap (253, 1) system-root (253, 0) [root@0-0-0:~] dmsetup info Name: system-drbd State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 2 Event number: 0 Major, minor: 253, 3 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhc9oHPRY2F4SleWlmv7OqByeHfF0Jj1zxz Name: system-boot State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 1 Event number: 0 Major, minor: 253, 2 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhcThphquJfIJuDM0xJVAJ3UiGa47WKxTbi Name: system-swap State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 1 Event number: 0 Major, minor: 253, 1 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhc4jQTV496FgvSfkj0IcdTkeOu2DsfSJXZ Name: system-root State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 1 Event number: 0 Major, minor: 253, 0 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhcCldeU919fNcKdkYqSpeoz7h2WLtB3SmB [root@0-0-0:~] dmsetup deps system-drbd: 1 dependencies : (9, 0) system-boot: 1 dependencies : (9, 0) system-swap: 1 dependencies : (9, 0) system-root: 1 dependencies : (9, 0) [root@0-0-0:~] dmsetup table system-drbd: 0 3823992832 linear 9:0 83026304 system-boot: 0 999424 linear 9:0 384 system-swap: 0 62496768 linear 9:0 999808 system-root: 0 19529728 linear 9:0 63496576 [root@0-0-0:~] /sbin/vgscan --ignorelockingfailure --mknodes Reading all physical volumes. This may take a while... Found volume group "vm" using metadata type lvm2 Found volume group "system" using metadata type lvm2 [root@0-0-0:~] /sbin/vgchange -aly --ignorelockingfailure device-mapper: reload ioctl failed: Invalid argument 1 logical volume(s) in volume group "vm" now active 4 logical volume(s) in volume group "system" now active [root@0-0-0:~] /sbin/vgscan --ignorelockingfailure --mknodes -vv Setting global/locking_type to 1 Setting global/wait_for_locks to 1 File-based locking selected. Setting global/locking_dir to /var/lock/lvm Locking /var/lock/lvm/P_global WB Wiping cache of LVM-capable devices Wiping internal VG cache Reading all physical volumes. This may take a while... Finding all volume groups /dev/md0: size is 3907026514 sectors /dev/md0: size is 3907026514 sectors /dev/md0: lvm2 label detected /dev/drbd0: size is 3823876056 sectors /dev/drbd0: size is 3823876056 sectors /dev/drbd0: lvm2 label detected Finding volume group "vm" Locking /var/lock/lvm/V_vm RB Found volume group "vm" using metadata type lvm2 Unlocking /var/lock/lvm/V_vm Finding volume group "system" Locking /var/lock/lvm/V_system RB Found volume group "system" using metadata type lvm2 Unlocking /var/lock/lvm/V_system Finding all logical volumes Locking /var/lock/lvm/V_vm RB Creating directory /dev/vm The link /dev/vm/freeradius should had been created by udev but it was not found. Falling back to direct link creation. Linking /dev/vm/freeradius -> /dev/mapper/vm-freeradius Unlocking /var/lock/lvm/V_vm Locking /var/lock/lvm/V_system RB Unlocking /var/lock/lvm/V_system Unlocking /var/lock/lvm/P_global [root@0-0-0:~] ls -l /dev/dm-3 brw-rw---- 1 root disk 253, 3 Feb 16 15:49 /dev/dm-3 [root@0-0-0:~] dmsetup ls system-drbd (253, 3) system-boot (253, 2) vm-freeradius (253, 4) system-swap (253, 1) system-root (253, 0) [root@0-0-0:~] dmsetup info Name: system-drbd State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 2 Event number: 0 Major, minor: 253, 3 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhc9oHPRY2F4SleWlmv7OqByeHfF0Jj1zxz Name: system-boot State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 1 Event number: 0 Major, minor: 253, 2 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhcThphquJfIJuDM0xJVAJ3UiGa47WKxTbi Name: vm-freeradius State: ACTIVE Read Ahead: 256 Tables present: None Open count: 0 Event number: 0 Major, minor: 253, 4 Number of targets: 0 UUID: LVM-CVuXc2yOz6jEKYv9LBh3ejnAvwursmdNfz3BJfjSyFYu8jy2v9jpg8HJR0Y72lfD Name: system-swap State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 1 Event number: 0 Major, minor: 253, 1 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhc4jQTV496FgvSfkj0IcdTkeOu2DsfSJXZ Name: system-root State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 1 Event number: 0 Major, minor: 253, 0 Number of targets: 1 UUID: LVM-SZg7evkqnqPFhhihrjgwpsLteQZPYwhcCldeU919fNcKdkYqSpeoz7h2WLtB3SmB [root@0-0-0:~] dmsetup deps system-drbd: 1 dependencies : (9, 0) system-boot: 1 dependencies : (9, 0) vm-freeradius: 0 dependencies : system-swap: 1 dependencies : (9, 0) system-root: 1 dependencies : (9, 0) [root@0-0-0:~] dmsetup table system-drbd: 0 3823992832 linear 9:0 83026304 system-boot: 0 999424 linear 9:0 384 vm-freeradius: system-swap: 0 62496768 linear 9:0 999808 system-root: 0 19529728 linear 9:0 63496576 [root@0-0-0:~]