SLES10SP4 certain LVM actions report device-mapper targets not detected in kernel
This document (7010069) is provided subject to the disclaimer at the end of this document.
Environment
Situation
Setting chunksize to 16 sectors.
snapshot: Required device-mapper target(s) not detected in your kernel
Please see the additional information section for a successful run of creating a snapshot device.
Resolution
Cause
On systems where the update cannot be installed immediately the interim solution is to load the modules manually using the modprobe command:
- modprobe dm-snapshot
- modprobe dm-mirror
Additional Information
test64:~ # lvcreate -v -L 300M -s -n newsnapvol /dev/system/test
Setting chunksize to 16 sectors.
Executing: /sbin/modprobe dm-snapshot
Finding volume group "system"
Archiving volume group "system" metadata (seqno 2).
Creating logical volume newsnapvol
Creating volume group backup "/etc/lvm/backup/system" (seqno 3).
Found volume group "system"
Creating system-newsnapvol
Loading system-newsnapvol table
Resuming system-newsnapvol (253:1)
Clearing start of logical volume "newsnapvol"
Found volume group "system"
Found volume group "system"
Creating system-test-real
Loading system-test-real table
Resuming (253:2)
Loading system-test table
Creating system-newsnapvol-cow
Loading system-newsnapvol-cow table
Resuming (253:3)
Loading system-newsnapvol table
Suspending system-test (253:0) with filesystem sync.
Suspending system-test-real (253:2) with filesystem sync.
Found volume group "system"
Loading system-test-real table
Suppressed system-test-real identical table reload.
Resuming system-test-real (253:2)
Loading system-newsnapvol-cow table
Suppressed system-newsnapvol-cow identical table reload.
Resuming system-newsnapvol (253:1)
Resuming system-test (253:0)
Creating volume group backup "/etc/lvm/backup/system" (seqno 4).
Logical volume "newsnapvol" created
test64:~ #
Disclaimer
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- Document ID:7010069
- Creation Date: 27-Jan-2012
- Modified Date:22-Dec-2021
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- SUSE Linux Enterprise Server
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