since it affects /* and not / the extra flag isn’t necessary
since it affects /* and not / the extra flag isn’t necessary
since it affects /* and not / no-preserve-root
isn’t needed
Take in mind that lot of btrfs features need to be disabled (noCOW flag) for VM workloads to have acceptable performance. I usually just take the hit in performance if i need a VM (it’s not my primary use), but it is there and is noticeable.
YaST has a bootloader tool that allows setting GRUB timeout in GUI.