Fulltext results:
- Bootloader
- sdX update-grub If update-grub echos: "cannot find device for / in fstab" and you have a btrfs roots
- RAID
- dm/mdadm.conf you need to update initramfs: to find the root raid make sure these modules are includ
- Multiboot Stick
- come root (su / sudo -i) * attach usb stick * find device of the stick fdisk -l *replace sdX b