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Following commitfee29b05bb("configs/pc_x86_64_efi: use a GPT partition table"), board/pc/grub-efi.cfg is no longer used anywhere: the post-image-efi-gpt.sh script generates the grub configuration. Also, since post-image-efi-gpt.sh generates a grub configuration file that uses the root filesystem partition UUID as the root= kernel argument, the instructions in the readme.txt file to tweak root= from /dev/sda2 to /dev/vda2 is no longer relevant. This was noted in the commit log offee29b05bb: The root filesystem location is passed to the kernel by a partition UUID, so it is possible to boot on QEMU, directly from the disk image, or dump the image to a physical device. Fixes: #11841 Cc: Pete Morici <pmorici@dev295.com> Cc: Carlos A. M. dos Santos <unixmania@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>