[Bug 1826429] Re: package apparmor 2.13.2-9ubuntu6 failed to install/upgrade: installed apparmor package post-installation script subprocess returned error exit status 1

oh it was my mistake, i was not using the native cp & mv binary, i have solved it now. I will close the report now. Thanks for you support -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826429 Title:

[Bug 1826429] [NEW] package apparmor 2.13.2-9ubuntu6 failed to install/upgrade: installed apparmor package post-installation script subprocess returned error exit status 1

Public bug reported: error when upgrading from ubuntu 18.10 to 19.04 ProblemType: Package DistroRelease: Ubuntu 19.04 Package: apparmor 2.13.2-9ubuntu6 ProcVersionSignature: Error: [Errno 2] No such file or directory: '/proc/version_signature' Uname: Linux 4.20.0-042000-generic x86_64