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docs/BOOT_LOADER_INTERFACE: mention that menu-* options are strings

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To be on the safe side, explicitly mention that apart from the numerical
entries we can allow string ones.

Implementation-wise, bootctl will use internal numerical values that
match sd-boot's ABI. The latter also accepts the string options.

Going forward we'd like to avoid adding more internal magic and be more
explicit.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
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Emil Velikov 2023-10-04 12:55:52 +01:00 committed by Emil Velikov
parent 41231bec0c
commit b9de6a7b94
1 changed files with 2 additions and 1 deletions
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docs/BOOT_LOADER_INTERFACE.md
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@ -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