trusty (8) switch_root.8.gz

Provided by: util-linux_2.20.1-5.1ubuntu20.9_amd64 bug

NAME
       switch_root - switch to another filesystem as the root of the mount tree


SYNOPSIS
       switch_root [-hV]

       switch_root newroot init [arg...]


DESCRIPTION
       switch_root  moves  already  mounted  /proc,  /dev  and  /sys  to  newroot and makes newroot the new root
       filesystem and starts init process.

       WARNING: switch_root removes recursively all files and directories on the current root filesystem.


OPTIONS
       -h, --help
              show help and exit

       -V, --version
              show version number and exit


RETURN VALUE
       switch_root returns 0 on success and 1 on failure.


NOTES
       switch_root will fail to function if newroot is not the root of a mount. If you want to switch root  into
       a  directory that does not meet this requirement then you can first use a bind-mounting trick to turn any
       directory into a mount point:

              mount --bind $DIR $DIR


SEE ALSO
       mount(8) chroot(2) init(8) mkinitrd(8)


AUTHORS
       Peter Jones <pjones@redhat.com>
       Jeremy Katz <katzj@redhat.com>
       Karel Zak <kzak@redhat.com>


AVAILABILITY
       The   switch_root   command   is   part   of   the   util-linux   package   and   is    available    from
       ftp://ftp.kernel.org/pub/linux/utils/util-linux/.