switch_root newroot init [arg...]
DESCRIPTIONswitch_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.
- -h, --help
- Display help text and exit.
- -V, --version
Display version information and exit.
RETURN VALUEswitch_root returns 0 on success and 1 on failure.
NOTESswitch_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
Peter Jones <[email protected]> Jeremy Katz <[email protected]> Karel Zak <[email protected]>
AVAILABILITYThe switch_root command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.