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, /sys and /run 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
Display help text and exit.
−V,
−−version
Display version information and exit.
EXIT STATUS
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
AUTHORS
Peter Jones <pjones@redhat.com>
Jeremy Katz <katzj@redhat.com>
Karel Zak <kzak@redhat.com>