UEFI Secure Boot Pre-Bootloader Rewritten To Boot All Linux Versions

The Linux Foundation’s UEFI secure boot pre-bootloader is still in the works, and has been modified substantially so that it allows any Linux version to boot through UEFI secure boot. The reason for modifying the pre-bootloader was that the current version of the loader wouldn’t work with Gummiboot, which was designed to boot kernels using BootServices->LoadImage(). Further, the original pre-bootloader had been written using ‘PE/Coff link loading to defeat the secure boot checks.’ As it stands, anything run by the original pre-bootloader must also be link-loaded to defeat secure boot, and Gummiboot, which is not a link-loader, didn’t work in this scenario. This is the reason a re-write of the pre-bootloader was required and now it supports booting of all versions of Linux.

Also in UEFI news: Linus Torvalds announced today that the flaw which was bricking some Samsung laptops if booted into Linux has been dealt with.

Link to the original post on Slashdot

UEFI Secure Boot Pre-Bootloader Rewritten To Boot All Linux Versions was originally published on realcoders.org

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