I have two disks dedicated for the root filesystem and the rest form a BTRFS array for extra storage, so I want to make sure not to overwrite the BTRFS disks. The root disks for Container Linux currently register as
/dev/sdb. My understanding is that the names of these disks depends on which Linux kernel you are using and other random boot factors.
How can I make sure I pick the right disks in my Ignition configuration? I guess this is a very common issue but I can't find anything specific to Container Linux/Flatcar Linux.