Quote Originally Posted by !gm View Post
This means I have to remove all packages via opkg remove, install desired packages again,...
No. Package architecture name has changed, so you can't install new packages with old opkg.
  • Save your configuration files from /opt folder and clean it,
  • follow installation manual to (surprise!!^) package installation,
  • restore your configuration files.

Quote Originally Posted by !gm View Post
checkout the repo-trunk at my build-machine and recompile the packages pyload and minidlna...?
pyload and minidlna is in the OpenWRT repo. Feel free to use it.