diff --git a/man/systemd-boot.xml b/man/systemd-boot.xml
index 8c64aa21e4..dacd49cd7b 100644
--- a/man/systemd-boot.xml
+++ b/man/systemd-boot.xml
@@ -176,8 +176,8 @@
- The following keys may be used during bootup or in the boot menu to
- directly boot a specific entry:
+ The following keys may be pressed during bootup or in the boot menu to directly boot a specific
+ entry:
@@ -214,6 +214,17 @@
+ The boot menu is shown when a non-zero menu timeout has been configured. If the menu timeout has
+ been set to zero, it is sufficient to press any key — before the boot loader initializes — to bring up
+ the boot menu, except for the keys listed immediately above as they directly boot into the selected boot
+ menu item. Note that depending on the firmware implementation the time window where key presses are
+ accepted before the boot loader initializes might be short. If the window is missed, reboot and try
+ again, possibly pressing a suitable key (e.g. the space bar) continuously; on most systems it should be
+ possible to hit the time window after a few attempts. To avoid this problem, consider setting a non-zero
+ timeout, thus showing the boot menu unconditionally. Some desktop environments might offer an option to
+ directly boot into the boot menu, to avoid the problem altogether. Alternatively, use the command line
+ systemctl reboot --boot-loader-menu=0 from the shell.
+
In the editor, most keys simply insert themselves, but the following keys
may be used to perform additional actions: