An LVM thin pool has an associated metadata volume, and it can be
assumed that the size of this volume on the image is minimized for
distribution.
This change grows the metadata volume by 1GiB, which is recommended[1] as
a reasonable default. This fixes a specific issue with the metadata
volume being exausted when growing into a 2TB drive.
Other minor changes include:
- Human readable printed values have switched to GiB, MiB, KiB, B
- Growth percentage volumes are adjusted down to not over-provision
the thin volume
[1] https://access.redhat.com/solutions/6318131
Change-Id: I1dd6dd932bb5f5d9adac9b78a026569165bd4ea9
Resolves: rhbz#2149586
00ca126287