Migration fails
This article contents known reasons of migration failures.
Reason #1
Symptomps
After giving vzmigrate -v --online <ip address> <veid> the following message appears:
Error: undump failed: Invalid argumentStopping VE ... Restoring failed: iptables-restore exited with 1 rst_restore_net: -22
Reason
The VE, which you wish to migrate, uses some iptables modules, that are not loaded on destination node. Consequently iptables-restore fails.
Workaround
Load all iptables kernel modules that are used by VE on destination node.
