d56dd56881
The bootloader element now has variable DIB_BOOTLOADER_VIRTUAL_TERMINAL to customize or suppress the console=tty0 kernel argument. This is proposed to allow console=tty0 to be removed entirely as it is causing significant performance degredation in DPDK environments. Change-Id: Iba2ee5b8a6b4acdd236a770550dffd29c784ce11 Related: rhbz#2179366
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847 B
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25 lines
847 B
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==========
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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_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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