When I have a 2-device btrfs: devid 1 = /dev/vdb1 devid 2 = /dev/vdc1
Regardless of the mount command, df and /proc/mounts shows /dev/vdb1 is mounted. If I flip the backing assignments in qemu, such that: devid 2 = /dev/vdb1 devid 1 = /dev/vdc1 Now, /dev/vdc1 is shown as mounted by df and /proc/mounts. But this isn't scientific. Is there a predictable logic? Is it always the lowest devid? -- Chris Murphy
