The problem is with the 'i' attribute. From the man page "A file with the ‘i’ attribute cannot be modified: it cannot be deleted or renamed, no link can be created to this file and no data can be written to the file. Only the superuser or a process possessing the CAP_LINUX_IMMUTABLE capability can set or clear this attribute."
Runnig the following commands shoud do the trick: sudo chattr -i /bin/ps sudo apt-get install --reinstall procps If it doesn't fix your problem then remove the 'a' and 's' attributes and please attach the output of the command "mount" How did you achieved in this state. Did you changed the attributes, are you using a remote fs (nfs, smb, ...) ? Your 'ls' command seems barely broken too. Any alias ? Thanks -- procps failed to install/upgrade :unable to make backup link of `./bin/ps' before installing new version: Operation not permitted https://bugs.launchpad.net/bugs/280533 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
