Upgrading to Bullseye (troubleshooting Armbian 21.08.1)
Upgrading Helios64 from Armbian Buster to Bullseye (see below) works as expected on my system.
However, I am using systemd-networkd and just a few services (nextcloud, netatalk, etc. and not ZFS)
EDIT: Upgrading Buster installations to Bullseye also works fine if you use network-manager, even if you have a bridge configured (using bridge-slave; binutils-bridge).
# cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_I
For step 3 there is a way out of tweaking Jumper 10 if you want to boot force boot on SD.
From the serial console press a key on the keyboard while u-boot start. You will get the u-boot prompt.
from this prompt write:
run bootcmd_mmc1
and press enter. Helios64 will boot from SD.
To force boot from eMMC instead of SD, do the opposite:
run bootcmd_mmc0
This saved me from opening the box.
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