path: root/sys-utils/switch_root.8

.\" Karel Zak <kzak@redhat.com>
.TH SWITCH_ROOT 8 "June 2009" "Linux"
.SH NAME
switch_root \- switch to another filesystem as the root of the mount tree.
.SH SYNOPSIS
.B switch_root
.RB [\-hV]
.LP
.B switch_root
.I newroot
.I init
.RB [ \fIarg\fP
.RB ...]
.SH DESCRIPTION
.B switch_root
moves already mounted /proc, /dev and /sys to
.I newroot
and makes
.I newroot
the new root filesystem and starts
.I init
process.

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

.SH OPTIONS
.IP "\fB\-h, \-\-help\fP"
show help and exit
.IP "\fB\-V, \-\-version\fP"
show version number and exit

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

.SH "SEE ALSO"
.BR mount (8)
.BR chroot (2)
.BR init (8)
.BR mkinitrd (8)
.SH AUTHORS
.nf
Peter Jones <pjones@redhat.com>
Jeremy Katz <katzj@redhat.com>
Karel Zak <kzak@redhat.com>
.fi
.SH AVAILABILITY
The switch_root command is part of the util-linux-ng package and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.