The line: Version kernel-image-std-def#3:4.4.86-alt0.M80C.2#3:4.4.86-alt0.M80C.2 for kernel-image-std-def=4.4.86-alt0.M80C.2 is already installed has a double version postfix in the example below: [root@localhost .in]# apt-get remove kernel-image-std-def=4.4.86-alt0.M80C.2 Reading Package Lists... Done Building Dependency Tree... Done Version kernel-image-std-def#3:4.4.86-alt0.M80C.2#3:4.4.86-alt0.M80C.2 for kernel-image-std-def=4.4.86-alt0.M80C.2 is already installed The following packages will be REMOVED: kernel-image-std-def#3:4.4.86-alt0.M80C.2 0 upgraded, 0 newly installed, 1 removed and 0 not upgraded. Need to get 0B of archives. After unpacking 50.6MB disk space will be freed. Do you want to continue? [Y/n] n Abort. [root@localhost .in]# rpm -q apt --lastchange * Fri May 31 2019 Aleksei Nikiforov <darktemplar@altlinux.org> 0.5.15lorg2-alt53.M80C.2 - Ported https support from Debian via https method to apt-https package. - Dropped processing Realm name in http/https methods. [root@localhost .in]# The same applies to p8 and Sisyphus: [root@prodesk /]# apt-get remove kernel-image-un-def=5.0.19-alt1 Reading Package Lists... Done Building Dependency Tree... Done Version kernel-image-un-def#1:5.0.19-alt1:sisyphus+230627.100.1.3@1559075615#1:5.0.19-alt1:sisyphus+230627.100.1.3@1559075615 for kernel-image-un-def=5.0.19-alt1 is already installed ... [root@prodesk /]# rpm -q apt --lastchange * Ср июн 05 2019 Ivan Zakharyaschev <imz@altlinux.org> 0.5.15lorg2-alt67 - Add disttag to VerStrs (used by APT to identify package versions). This was noticed by Александр Макеенков. It doesn't affect the correctness of APT's work.