just fix it in the code and you'll be allowed to migrate.
we don't officially suport XFs (since it is incompatible with VZ quotas),
but CPT is not dependent on it and should work. 

Dariush Pietrzak wrote:
> Hi,
>  I'm suddenly getting this:
> 
> Setting up checkpoint...
>         suspend...
> 	Can not suspend VE: Invalid argument
> 	Error: unsupported fs type xfs
> 	Checkpointing failed
> 
> and in dmesg this:
> CPT ERR: ffff8100f3c69800,1042 :unsupported fs type xfs
> 
> this is surprising since I've been using xfs almost exclusively and never
> noticed such message ( although I've been playing on x86. and this I got on
> amd64 )...
>  
>  I don't quite follow why CPT would be dependant on filesystem type,
> especially since I'm planning on moving VEs composed of several partitions,
> and since xfs seems very well suited to such tasks (i'm  getting much
> faster VE transfer times with xfsdump/xfsrestore then with rsync).
> 
>   Are there any special requirements for CPTing to work?
>