If the name of a package and the name of the file installing that package differ and the package requires use of an admin file to install and uninstall, the package can be installed on a target host using an OS Update, but the OS Update (the package) cannot subsequently be uninstalled from the N1 System Manager.
Workaround: You can do one of the following to delete the improperly-named package:
Rename the package file to match the name of the package before using N1 System Manager to install the package.
Rename the admin file in the provisionable server's /tmp directory to match the name of the package. For example, package-name.admin instead of package-filename.admin.
Manually remove the package from the provisionable server using pkgrm.