Preparing to replace xtrojka 123-12 (using .../archives/xtrojka_123-13.deb) ... Unpacking replacement xtrojka ... Setting up xtrojka (123-13) ... chown: invalid option -- 1 Try `chown --help' for more information. dpkg: error processing xtrojka (--configure): subprocess post-installation script returned error exit status 1 Errors were encountered while processing: xtrojka E: Sub-process returned an error code Some errors occurred while unpacking. I'm going to configure the packages that were installed. This may result in duplicate errors or errors caused by missing dependencies. This is OK, only the errors above this message are important. Please fix them and run [I]nstall again
...this appeared after I tried to update this package (among others) in the latest potato. Peter.