2015-02-02 12:34:26 -05:00
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.Dd February 2, 2015
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.Dt SWITCH_ROOT 8
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.Os ubase
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.Sh NAME
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.Nm switch_root
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.Nd switch to another filesystem as the root of the mount tree
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.Sh SYNOPSIS
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.Nm
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.Op Fl c Ar console
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.Ar newroot init
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.Sh DESCRIPTION
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.Nm
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removes all files and directories on the current root filesystem and
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overmounts it with
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.Ar newroot .
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If a
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.Ar console
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is specified, redirect stdio and stderr to it. After the switch, execute
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.Ar init .
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.Pp
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.Nm
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can only be run as PID 1 in an initramfs or tmpfs with a regular and
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executable /sbin/init.
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.Sh OPTIONS
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.Bl -tag -width Ds
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.It Fl c
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Redirect stdio and stderr to
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.Ar console
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after switching to
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.Ar newroot .
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.El
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