I have a "Banana PRO"
One USB disk, 2TB with three partitions in ext4, the first partition is mounted (hdb1), the other two are not mounted.
One USB disk, 4TB with a single ext4 partition mounted (hdc1).
One SATA SSD disk with a single ext4 partition unmounted (hda1).
Several aesthetic considerations:

After the upgrade, reboot and login, the welcome screen and 100% battery!!! Hurrah!!!
It seems that the MMC is 9% occupancy and ... oh! my hdb disk has only one partition? ah no, only reads hdb1. And the other two disks? I have two mounted partitions but only shows one.

Turn off the system with the poweroff order and boot from the power button again, the battery is down to 97%? 30 minutes later still 97% ... I think we will have to discharge the battery to calibrate.

It is a bit ugly to show the battery charge on two lines.

 

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| __ )  __ _ _ __   __ _ _ __   __ _
|  _ \ / _` | '_ \ / _` | '_ \ / _` |
| |_) | (_| | | | | (_| | | | | (_| |
|____/ \__,_|_| |_|\__,_|_| |_|\__,_|


Welcome to ARMBIAN Debian GNU/Linux 8 (jessie) 4.4.1-sunxi

System load:   0.10             Up time:       2 min
Memory usage:  4 % of 997Mb     IP:            192.168.187.89
CPU temp:      38°C
Usage of /:    9% of 15G        storage/:      88% of 1.8T      Battery:       9
7% charging

Last login: Sat Feb 13 01:49:50 2016 from remote.intranet
root@mybanana:~#

Well, storage monitoring was meant to be a choice - to monitor one / two mounts. I'll develop a user config for next, since this file is overwritten on every upgrade.

 

It is a bit ugly to show the battery charge on two lines.

 

Who uses 80 column mode ? OK, Will be fixed in next.

 

Battery.

Well, I do not know exactly how the script works. I propose an idea, find out first mounted partitions and display the data later.
df -l excluding tmpfs, for example, do that.
I do not know programming, I'm too old for that  but certainly with your magic you know how.

 

A query, how do I show the data with the session already started?

This is the script. It's not complicated ...

https://github.com/igorpecovnik/lib/blob/master/scripts/update-motd.d/30-sysinfo

 

No need to fix it by yourself. We will find a way to make this as simple as possible to adjust to user desires. I made the basics, design and beauty of the output is a subjective manner. Always

 

An idea / txt output how to shape date is enough, perhaps here where those changes begin:

http://forum.armbian.com/index.php/topic/602-new-motd-for-ubuntudebian/