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
- Display help text and exit.
- -V, --version
- Display version information 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:
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/.