Running '/hurd/mtab /some/mountpoint/' correctly outputs the mount details. However trying with a non-mountpoint still emits a result:
~:/hurd/mtab /any/dir/ /dev/hd0s2 /any/dir ext2fs <various options> where /dev/hd0s2 is '/'. This is probably not intended behaviour. There's also a less important issue: when there's no mountpoint, stderr is spammed by hundreds of lines of the form: /hurd/mtab: /any/path/dev/hd3s12 No such file or directory or /hurd/mtab: /any/path/servers/socket/26 No such file or directory It seems that the filepaths of all the files known to mtab (which seems to mean the whole of /dev/ in particular) get appended to the target dir, and not found. This information is unlikely to be useful to most people. debian gnu/hurd sid, updated today.