Comment 2 for bug 1839500

# apt install btrfs-progs
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'btrfs-tools' instead of 'btrfs-progs'
The following additional packages will be installed:
  liblzo2-2
The following NEW packages will be installed:
  btrfs-tools liblzo2-2
0 upgraded, 2 newly installed, 0 to remove and 86 not upgraded.
Need to get 570 kB of archives.
After this operation, 3910 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://archive.ubuntu.com/ubuntu xenial/main amd64 liblzo2-2 amd64 2.08-1.2 [48.7 kB]
Get:2 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 btrfs-tools amd64 4.4-1ubuntu1.1 [521 kB]
Fetched 570 kB in 0s (907 kB/s)
Selecting previously unselected package liblzo2-2:amd64.
(Reading database ... 12323 files and directories currently installed.)
Preparing to unpack .../liblzo2-2_2.08-1.2_amd64.deb ...
Unpacking liblzo2-2:amd64 (2.08-1.2) ...
Selecting previously unselected package btrfs-tools.
Preparing to unpack .../btrfs-tools_4.4-1ubuntu1.1_amd64.deb ...
Unpacking btrfs-tools (4.4-1ubuntu1.1) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Setting up liblzo2-2:amd64 (2.08-1.2) ...
Setting up btrfs-tools (4.4-1ubuntu1.1) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...

All is good!