[CRIU] external mountpoint issue for docker

[Pavel Emelyanov]

On 06/04/2014 10:27 PM, Bing X wrote:
> OK, I find the error occurs at the line pivot_root
> 
> I modified this line to to move my container root to "./$odir"
> 
> my command is:
> 
> pivot_root "/var/lib/docker/containers/a4aec40cc802b258990c538852387b14ec7f7404ca397c66f2ee6ff9862f4a16/root/" "./$odir"
> 
> the error is: pivot_root: Invalid argument
> 
> any suggestion what's happening here?

The pivot_root() only works if the target directory is a mount point.

> thanks,
> Bing