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, /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
Print version and exit.
EXIT STATUS
switch_root returns 1 on failure, it never returns on success.
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 [AT] redhat.com>, Jeremy Katz <katzj [AT] redhat.com>, Karel Zak <kzak [AT] redhat.com>
SEE ALSO
chroot(2), init(8), mkinitrd(8), mount(8)
REPORTING BUGS
For bug reports, use the issue tracker at <https://github.com/util-linux/util-linux/issues>;.
AVAILABILITY
The switch_root command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>;.