diskimage-builder/diskimage_builder/elements/bootloader/environment.d/10-bootloader-default-cmdline
Steve Baker d56dd56881 Allow custom console=tty0 argument
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
2023-04-11 17:15:12 +12:00

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export DIB_BOOTLOADER_DEFAULT_CMDLINE=${DIB_BOOTLOADER_DEFAULT_CMDLINE:-"nofb nomodeset gfxpayload=text"}
export DIB_BOOTLOADER_SERIAL_CONSOLE=${DIB_BOOTLOADER_SERIAL_CONSOLE:-""}
if [ ! -v DIB_BOOTLOADER_VIRTUAL_TERMINAL ]; then
# DIB_BOOTLOADER_VIRTUAL_TERMINAL is unset
export DIB_BOOTLOADER_VIRTUAL_TERMINAL=tty0
else
# DIB_BOOTLOADER_VIRTUAL_TERMINAL is set to empty string or other value
export DIB_BOOTLOADER_VIRTUAL_TERMINAL=${DIB_BOOTLOADER_VIRTUAL_TERMINAL}
fi