#3 > Are you running from a cdrom/flash drive?
Yes. And trying to run $ sudo apt upgrade as well where inevitably the issue described at #2 occurs for at least this package and libgl1-mesa-dri:i386 and the solution to proceed is to delete the referenced file and continue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1884366 Title: package libkrb5-3 1.16-2build1 failed to install/upgrade: unable to make backup link of './usr/lib/i386-linux-gnu/libkrb5.so.3.3' before installing new version: Input/output error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1884366/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs