Package: inn2 Version: 2.6.3-1+deb10u2 During an upgrade from stretch to buster, the inn2 postinst script failed like this:
| Setting up inn2 (2.6.3-1+deb10u2) ... | /usr/lib/news/bin/innconfval: error while loading shared libraries: libinn.so.6: cannot open shared object file: No such file or directory | dpkg: error processing package inn2 (--configure): | installed inn2 package post-installation script subprocess returned error exit status 127 The reason being that libinn.so.6 is in the new inn2-inews package, which was not upgraded yet. Manually upgrading inn2-inews solved the problem.