Error inserting dm_snapshot

[udi]

hi,
after upgrading today my backub jobs fail:

INFO: FATAL: Error inserting dm_snapshot (/lib/modules/2.6.32-6-pve/kernel/drivers/md/dm-snapshot.ko): Invalid module format
INFO:   /sbin/modprobe failed: 1
INFO:   snapshot: Required device-mapper target(s) not detected in your kernel

# pveversion -v

pve-manager: 2.0-18 (pve-manager/2.0/16283a5a)
running kernel: 2.6.32-6-pve
proxmox-ve-2.6.32: 2.0-55
pve-kernel-2.6.32-6-pve: 2.6.32-55
lvm2: 2.02.88-2pve1
clvm: 2.02.88-2pve1
corosync-pve: 1.4.1-1
openais-pve: 1.1.4-1
libqb: 0.6.0-1
redhat-cluster-pve: 3.1.8-3
pve-cluster: 1.0-17
qemu-server: 2.0-13
pve-firmware: 1.0-14
libpve-common-perl: 1.0-11
libpve-access-control: 1.0-5
libpve-storage-perl: 2.0-9
vncterm: 1.0-2
vzctl: 3.0.29-3pve8
vzprocps: 2.0.11-2
vzquota: 3.0.12-3
pve-qemu-kvm: 1.0-1
ksm-control-daemon: 1.1-1

 

[udo]

Hi,
I guess you don't reboot since the kernel-upgrade?
Due to the same name of the kernel pve-kernel-2.6.32-6-pve the name of the modules are also the same - but for an different kernel.
You need an reboot and the module should fit.

Udo

 

[udi]

yeah the reboot did the trick, thank you udo.

should i reboot after every kernel upgrade?

 

[tom]

yes, a kernel update always need a reboot.

 

[udi]

yeah, nobody told me to do so until today - i learn every day something new