.Dd January 5, 2016
.Dt SYSUPGRADE 8
.Os
.Sh NAME
.Nm sysupgrade
.Nd operating system upgrader
.Sh SYNOPSIS
.Nm sysupgrade
.Sh DESCRIPTION
.Nm
is an interactive command line program that upgrades another installation to the
current operating system.
It asks basic questions, searches for existing installations, verifies the
upgrade makes sense, and upgrades the target system according to
.Xr upgrade.conf 5
of the target system.
The upgrade proceeds as described in
.Xr upgrade 7 .
.Pp
.Nm
must be run as root with stdin, stdout and stderr all pointing to the terminal.
It is intended to be run from a live environment and not from an actual
installation.
.Sh SEE ALSO
.Xr autoupgrade.conf 5 ,
.Xr upgrade 7 ,
.Xr sysinstall 8