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feature uki

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Alexey Gladkov edited this page Dec 22, 2024 · 1 revision

Feature: uki

Unified kernel image (UKI) is a single executable which can be booted directly from UEFI firmware, or automatically sourced by boot-loaders with little or no configuration.

See https://uapi-group.org/specifications/specs/unified_kernel_image/

Parameters

  • UKI_FEATURES -- Variable contains a list of features that will be added to the UEFI image.
  • UKI_SPLASH_FILE -- Variable contains a filename which will be used as a splash image when creating an UEFI. Requires bitmap (.bmp) image format.
  • UKI_CMDLINE -- Variable contains a list of kernel cmdline parameters. If the variable is not specified, the parameters from /etc/cmdline.d/*.conf will be taken. If the directory /etc/cmdline.d does not exist, the parameters from /proc/cmdline will be taken.
  • UKI_VMLINUZ -- The variable specifies the kernel image filename. If not specified, the image will be guessed.
  • UKI_SBAT -- CSV lines encoded the SBAT metadata for the image.
  • UKI_UEFI_STUB -- A simple UEFI kernel boot stub. By default, systemd-stub(7) is used. But an independent stubby can also be used.

ToDo

  • Multi-Profile UKIs
  • PE Addons
  • UKI TPM PCR Measurements
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