man: Describe --root option requirements

These requirements have been described in

b133feae/libcontainer/container_linux.go (L1265)

Signed-off-by: Radostin Stoyanov <rstoyanov1@gmail.com>
This commit is contained in:
Radostin Stoyanov 2019-11-03 20:35:18 +00:00 committed by Andrei Vagin
parent 8ab3e40e3e
commit 9a50fbce72

View file

@ -414,6 +414,8 @@ usually need to be escaped from shell.
*-r*, *--root* 'path'::
Change the root filesystem to 'path' (when run in a mount namespace).
This option is required to restore a mount namespace. The directory
'path' must be a mount point and its parent must not be overmounted.
*--external* 'type'*[*'id'*]:*'value'::
Restore an instance of an external resource. The generic syntax is