diskimage-builder/diskimage_builder/elements/centos/pre-install.d/03-reset-bls-entries
Steve Baker 0d0f7f8075 Rename existing BLS entry with the new machine-id
This change replaces the call to grub2-switch-to-blscfg with a file
rename to update it to the actual machine-id.

grub2-switch-to-blscfg has issues in some build environments:
- When the build host is EFI boot, it assumes the image is, and
  fails when config file /etc/grub2-efi.cfg is missing
- With recent cento9 images and a fedora build host it fails with:
  grub2-probe: error: cannot find a device for / (is /dev mounted?)

Change-Id: I74ad800b702f2b491d958555cef8d7c7f63d74ac
2022-01-21 15:36:49 +13:00

32 lines
775 B
Bash
Executable file

#!/bin/bash
if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
if [[ ! '9-stream' =~ ${DIB_RELEASE} ]]; then
exit 0
fi
# This is a workaround for the grub issue reported upstream with
# https://bugzilla.redhat.com/show_bug.cgi?id=2032680
# This renames the BLS entries from the upstream .qcow2 image in
# /boot/loader/entries with the current machine-id. This means that in the
# bootloader setup, grub2-mkconfig will update config options as required.
pushd /boot/loader/entries
machine_id=$(</etc/machine-id)
for entry in *; do
new_entry=$(echo $entry | sed "s/^[a-f0-9]*/$machine_id/")
echo "renaming $entry to $new_entry for new machine-id"
mv $entry $new_entry
done
popd
echo "--- Show kernels ---"
grubby --info=ALL