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-rw-r--r--docs/BOOT_LOADER_INTERFACE.md3
1 files changed, 2 insertions, 1 deletions
diff --git a/docs/BOOT_LOADER_INTERFACE.md b/docs/BOOT_LOADER_INTERFACE.md
index 7131baf005..79d1224057 100644
--- a/docs/BOOT_LOADER_INTERFACE.md
+++ b/docs/BOOT_LOADER_INTERFACE.md
@@ -31,7 +31,8 @@ variables. All EFI variables use the vendor UUID
* The EFI variable `LoaderConfigTimeout` contains the boot menu timeout
currently in use. It may be modified both by the boot loader and by the
host. The value should be formatted as numeric, NUL-terminated, decimal
- string, in UTF-16. The time is specified in seconds. A value of `menu-force`
+ string, in UTF-16. The time is specified in seconds. In addition some
+ non-numeric string values are also accepted. A value of `menu-force`
will disable the timeout and show the menu indefinitely. If set to `0` or
`menu-hidden` the default entry is booted immediately without showing a menu.
The boot loader should provide a way to interrupt this by for example