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Login credentials for genuine Armbian images are always root / 1234
For 3rd party images we cannot help.

Also possible but not recommended. https://docs.armbian.com/User-Guide_Getting-Started/#how-to-upgrade-distribution-like-focal-to-jammy-or-bullseye-to-bookworm
Keep in mind that Bullseye will continue receive userspace upgrades until "roughly July 2024 to June 2026": https://wiki.debian.org/LTS

Correct. Ubuntu and Debian userspaces are incompatible.

https://forum.armbian.com/forum/214-nanopi-duo2/
 
??

code { font-family: Consolas,"courier new"; color: crimson; background-color: rgba(0, 0, 0, 0.2); padding: 2px; font-size: 105%; } dpkg-reconfigure locales to make sure en_US UTF8 is available and set default
code { font-family: Consolas,"courier new"; color: crimson; background-color: rgba(0, 0, 0, 0.2); padding: 2px; font-size: 105%; } dpkg-reconfigure keyboard-configuration should do the rest

Standard comes with all standard tool to be ready to do most common tasks oob.
Minimal comes, as the name implies, with a bare minimum of packages to get a somehow running system.
You can check the build repository on github for package lists.

Armbian does not provide updates for userspace packages. Firmware (u-boot, kernel) however may (or may not) receive further updates until something breaks (and nobody volunteers to fix).

Bullseye images have been replaced in favor of upcoming Bookworm.
All links here working perfectly: https://www.armbian.com/orangepi-r1plus-lts/
You can build your own image with Bullseye userspace if you want: https://docs.armbian.com/Developer-Guide_Build-Preparation/

A backup is the correct option
 

Hm did you run apt update beforehand?
Download works for me
 
apt-get download linux-headers-current-sunxi Get:1 http://fi.mirror.armbian.de/apt buster/main armhf linux-headers-current-sunxi armhf 23.02.2 [12.0 MB] Fetched 12.0 MB in 4s (3,045 kB/s)  

Two ways:
Get a UART serial adapter and use debug console to get in
get an eMMC-USB adapter to mount it on a different computer and restore functionality.
 
Also worth a try: write a fresh image to an sdcard, plug it in and boot. Ideally it should boot from SD, then mount eMMC and do adjustments.

try https://archive.armbian.com
If not there they are gone.

https://github.com/McMCCRU/rtl8188gu

We only provide a small quantity of image combinations that are possible because building and providing them all would be just insane.
 
Check here for building your own customized image: https://github.com/armbian/build

You cannot install amd64 binaries on arm hardware.

As always the solution pops up once I start complaining
 
Seems like my 64G microSD is cursed. It works well on common usage but it refuses to work properly on SBCs. Not wrote the same image to a 32G SD of same quality and brand and it works...

Posting the same question on multiple occasions is considered abusive behavior.

Is that arm'ish enough?

Thanks
 
https://github.com/armbian/build/pull/4466

Correct. That way of installation has been removed by HASS and therefore broke our installer which then got removed:https://github.com/home-assistant/supervised-installer/commit/ece9fcc9468be41c67d052e043a9e70bad16a67a
 
You have to figure some manual way of installation. No idea though what packages are available and so on.

Did you do apt update beforehand?

This sounds quite confusing.
 
PHY is set to DHCP by default so it tries to aquire a lease by a DHCP server available in the network. If you don't have one you have to find another way to make the board connectable via copper. Like using UART serial console or build your own script using custom configuration.
Cannot say about using Pi as DHCP since I dont know your full network setup and therefore no idea if that would work. A dhcp server is usually also some kind a router to NAT data to a different network or WAN.

With MS Windows you can also try https://gitlab.com/bztsrc/usbimager
With Linux I'd simply go for dd if to create an image from an sdcard.

Depending n Armbian flavor (Bullseye, Jammy....) various Python versions are available for install via apt.

https://github.com/armbian/build/blob/master/config/boards/tinkerboard-2.wip
Feel free to join development