Comment 1 for bug 1957169

In ironic-conductor.log I can see this error:

2022-01-17 05:52:38.176 2 ERROR ironic.drivers.modules.agent_base [req-ffbdafa8-aa43-4472-af95-b9515773227b - - - - -] Deploy step deploy.prepare_instance_boot failed: Failed to install a bootloader when deploying node 46a21833-e127-4a1e-a40b-7b2a8b6be414. Error: Installing GRUB2 boot loader to device /dev/sda failed with Unexpected error while running command.
Command: chroot /tmp/tmpm6zdlj3w /bin/sh -c "grub2-install /dev/sda"
Exit code: 1
Stdout: ''
Stderr: "grub2-install: error: /usr/lib/grub/x86_64-efi/modinfo.sh doesn't exist. Please specify --target or --directory.\n".