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SWITCH_ROOT
Section: Maintenance Commands (8)
Updated: June 2009
Index
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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
-
show help and exit
- -V, --version
-
show version number 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:
- mount --bind $DIR $DIR
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-ng package and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- RETURN VALUE
-
- NOTES
-
- SEE ALSO
-
- AUTHORS
-
- AVAILABILITY
-
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