feat: [NODE-1521] Move bootloader off dockerhub (#2475)

Author: Bownairo

.github/workflows/container-mirror-images.json

@@ -5,6 +5,11 @@
       "repo": "docker.io",
       "sha256": "965fbcae990b0467ed5657caceaec165018ef44a4d2d46c7cdea80a9dff0d1ea"
     },
+    {
+      "image": "library/ubuntu",
+      "repo": "docker.io",
+      "sha256": "5d070ad5f7fe63623cbb99b4fc0fd997f5591303d4b03ccce50f403957d0ddc4"
+    },
     {
       "image": "ryantk/minica",
       "repo": "docker.io",

ic-os/bootloader/build-bootloader-tree.sh

@@ -25,11 +25,12 @@ sudo mount -t tmpfs tmpfs-podman "${TMPFS}"
 trap 'rm -rf "${TMPDIR}"; sudo podman --root "${TMPFS}" rm -f "${CONTAINER}"' exit
 TMPDIR=$(mktemp -d -t build-image-XXXXXXXXXXXX)
 
-BASE_IMAGE="docker.io/dfinity/ic-build-bazel@sha256:1978886cfda51b09057bffd60f2e5edb588c6c0b74de87696cd4e964335dba87"
+BASE_IMAGE="ghcr.io/dfinity/library/ubuntu@sha256:5d070ad5f7fe63623cbb99b4fc0fd997f5591303d4b03ccce50f403957d0ddc4"
 
 sudo podman --root "${TMPFS}" build --iidfile ${TMPDIR}/iidfile - <<<"
     FROM $BASE_IMAGE
     USER root:root
+    RUN apt-get -y update && apt-get -y --no-install-recommends install grub-efi faketime
     RUN mkdir -p /build/boot/grub
     RUN cp -r /usr/lib/grub/x86_64-efi /build/boot/grub
     RUN mkdir -p /build/boot/efi/EFI/Boot

ic-os/bootloader/grub.cfg

@@ -1,4 +1,4 @@
-regexp -s boot_disk '^\(([a-z0-9]*),[a-z0-9]*\)/EFI/BOOT' $cmdpath
+regexp -s boot_disk '^\(([a-z0-9]*),[a-z0-9]*\)/EFI/BOOT' $fw_path
 
 set prefix=($boot_disk,gpt2)