(In reply to Ignaz Forster from comment #4) > (In reply to Michael Chang from comment #3) > > (In reply to Jiri Srain from comment #2) Thanks for the elaborate explanation. I could understand why health_checker_flag expected to be in btrfs header. For that we can give it the residence permit to env_block (ie btrfs header) and also fix the error about read only file system in grub2-editenv if env_block are used. Just let me know about your thoughts then I can start to work on it.