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== Auto detection ==
== Auto detection ==
−In case one wants CRIU to autodetect and dump all the external bind mounts, and there is no need to change host mount points on restore, one can use a special syntax:
+ criu dump ... --external mnt[]:''flags''
+Note here is nothing inside square brackets, and the optional <code>:''flags''</code> argument can contain the following characters:
+; <code>m</code>
+: Also enable dumping of external master mounts (as in <code>mount --make-slave</code>)
+; <code>s</code>
+: Also enable dumping of external shared mounts (as in <code>mount --make-shared</code>)
+By default, neither master nor shared external mounts are not dumped (if found, dump is aborted). Note if <code>''flags''</code> are not given, semicolon is optional.
+=== Examples ===
+ criu dump ... --external 'mnt[]'
+Auto detect and dump all external bind mounts.
+ criu dump ... --external 'mnt[]:s'
+Auto detect and dump all external bind mounts, including the shared ones.
+ criu dump ... --external 'mnt[]:sm'
+Auto detect and dump all external bind mounts, including the shared and the master ones.
== Old days ==
== Old days ==