diff --git a/share/man/man4/vt.4 b/share/man/man4/vt.4
--- a/share/man/man4/vt.4
+++ b/share/man/man4/vt.4
@@ -1,4 +1,4 @@
-.\"-
+.\"
 .\" SPDX-License-Identifier: BSD-2-Clause
 .\"
 .\" Copyright (c) 2014 Warren Block
@@ -25,8 +25,8 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd July 7, 2024
-.Dt "VT" 4
+.Dd February 19, 2025
+.Dt VT 4
 .Os
 .Sh NAME
 .Nm vt
@@ -46,6 +46,7 @@
 .Xr loader.conf 5 :
 .Cd hw.vga.textmode=1
 .Cd hw.vga.acpi_ignore_no_vga=1
+.Cd kern.console=ttyv0,/ttyv0,gdb,
 .Cd kern.vty=vt
 .Cd kern.vt.color.<colornum>.rgb="<colorspec>"
 .Cd kern.vt.fb.default_mode="<X>x<Y>"
@@ -214,6 +215,9 @@
 Note no VGA support is only acknowledged when running virtualized.
 There is too many broken firmware that wrongly reports no VGA support on
 physical hardware.
+.It Va kern.console
+Set to a comma-separated list of terminal interfaces to print kernel
+messages.
 .It Va kern.vty
 Set this value to
 .Ql vt