4fbf564615
Set the grub timeout style to display the menu. By default it set to 'hidden' but can be changed to 'menu' to display the menu and then wait for the timeout expire before booting the default entry. Change-Id: I8c58407ef645d528dd77efe866bfe0389cbbbd33 Signed-off-by: Maksim Malchuk <maksim.malchuk@gmail.com>
30 lines
1.1 KiB
ReStructuredText
30 lines
1.1 KiB
ReStructuredText
==========
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bootloader
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==========
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Installs ``grub[2]`` on boot partition on the system.
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Arguments
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=========
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* ``DIB_GRUB_TIMEOUT`` sets the ``grub`` menu timeout. It defaults to
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5 seconds. Set this to 0 (no timeout) for fast boot times.
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* ``DIB_GRUB_TIMEOUT_STYLE`` sets the visibility of the ``grub`` menu.
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It defaults to ``hidden`` (or ``countdown`` as an alias). Set this to
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``menu`` to display the menu and then wait for the timeout set by
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``DIB_GRUB_TIMEOUT`` to expire before booting the default entry.
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* ``DIB_BOOTLOADER_DEFAULT_CMDLINE`` sets parameters that are appended
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to the ``GRUB_CMDLINE_LINUX_DEFAULT`` values in ``grub.cfg``
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configuration. It defaults to ``nofb nomodeset gfxpayload=text``.
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* ``DIB_BOOTLOADER_SERIAL_CONSOLE`` sets the serial device to be
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used as a console. It defaults to ``hvc0`` for PowerPC,
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``ttyAMA0,115200`` for ARM64, otherwise ``ttyS0,115200``.
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* ``DIB_BOOTLOADER_VIRTUAL_TERMINAL`` sets the virtual terminal be
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used as a console. It defaults to ``tty0``. When explicitly set
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to an empty string then no virtual terminal console kernel argument
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is added.
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