Adding upstream version 2.33.1.upstream/2.33.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/sys-utils/switch_root.8 b/sys-utils/switch_root.8
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+.\" Karel Zak <kzak@redhat.com>
+.TH SWITCH_ROOT 8 "June 2009" "util-linux" "System Administration"
+.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
+.RI [ arg ...]
+.SH DESCRIPTION
+.B switch_root
+moves already mounted /proc, /dev, /sys and /run 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"
+Display help text and exit.
+.IP "\fB\-V, \-\-version\fP"
+Display version information and exit.
+
+.SH RETURN VALUE
+.B switch_root
+returns 0 on success and 1 on failure.
+
+.SH NOTES
+switch_root will fail to function if
+.B 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:
+.sp
+.nf
+.RS
+mount --bind $DIR $DIR
+.RE
+.fi
+
+.SH "SEE ALSO"
+.BR chroot (2),
+.BR init (8),
+.BR mkinitrd (8),
+.BR mount (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 package and is available from
+https://www.kernel.org/pub/linux/utils/util-linux/.