For those of you who are willing to go down the rabbit hole, I hereby present a quick guide to get Debian sid with an LXDE desktop installed reliably on PowerPC based computers.
Quick installation guide
Install an lxde-desktop with the latest sid image:
If you boot into a black screen, follow this page.
Then after reboot make sure that you have ntp installed
apt install ntp
as you need to have the correct time and date. On my old iBook the battery that keeps the date and time correct is dead, so syncing with a time server is needed. You may need to add:
deb [arch=all] http://ftp.debian.org/debian sid main
to the apt sources list with
apt install ntp
then make sure you have the correct time and date
We also want to fix the Home folder:
apt install xdg-user–
Then it is time to edit the apt sources file again:
and add the following line:
deb http://ftp.ports.debian.org/debian-ports unstable main
then it will complain about the missing key for debian-ports (outdated needs to be changed, key is old):
gpg --recv-keys 81DCBC61
gpg -a --export 81DCBC61 | sudo apt-key add -
uncomment the DVD/CD deb line as well as the sid repository you just added
and then update
The better way to have the right key is to download debian-ports-archive-keyring and install it with
dpkg -i debian-ports-archive-keyring_20xx.xx.xx
use the correct date
If everything went well you are in sid/bullseye!
Reboot and enjoy your Debian sid LXDE.
Please feel free to give comments and corrections to this guide. I will try to make a wiki post out of it later.