Hi. Is there no support for btrfs in the latest armbian-ubuntu-xenial for Pine64s?

Linux pine54 3.10.104-pine64 #2 SMP PREEMPT Thu Feb 23 22:26:21 CET 2017 aarch64 aarch64 aarch64 GNU/Linux

root@pine54:~# mkfs.btrfs /dev/sda1
btrfs-progs v4.4
See http://btrfs.wiki.kernel.org for more information.

failed to open /dev/btrfs-control skipping device registration: No such file or directory
Label:              (null)
UUID:               d8362fb9-1b9c-4d92-8222-6745f842efcf
Node size:          16384
Sector size:        4096
Filesystem size:    7.04GiB
Block group profiles:
  Data:             single            8.00MiB
  Metadata:         DUP             368.62MiB
  System:           DUP              12.00MiB
SSD detected:       no
Incompat features:  extref, skinny-metadata
Number of devices:  1
Devices:
   ID        SIZE  PATH
    1     7.04GiB  /dev/sda1

root@pine54:~# mount /dev/sda1 /opt/
mount: unknown filesystem type 'btrfs'

root@pine54:~# modprobe btrfs
modprobe: FATAL: Module btrfs not found in directory /lib/modules/3.10.104-pine64

 

BTRFS is enabled only on kernels 4.4 and higher. You can recompile this kernel with BTRFS support, but dealing with any issues, instability and possible incompatibilities with such an old version is up to you.