It's been a few months since I have build my Helios 4 NAS server, with a major update to the Armbian OS made just recently. It's clearly the time to upgrade operating system!
We're moving from ARMBIAN 5.77 (based on Debian Linux 9 – Stretch) to a more recent of the same OS. There's Armbian Next available – based on Debian 10 Buster – but I'm not going to use it yet because NAS software OpenMediaVault is not fully ready for it (but is available as a beta).
Kobol (makes of the Helios 4) has a great post on this: major release – Armbian 5.91.
Since Armbian is a Debian based Linux, it's very easy to upgrade it:
$ sudo apt-get update $ sudo apt-get upgrade $ shutdown -r now
And this is where we are:
To confirm that this is Armbian 5.91 we'll need to check the /etc/armbian-release file now: