Upgrade installation of POSIX

The POSIX upgrade installation is required if you have already installed POSIX and wish to retain the existing root and var file systems.

The following procedure steps describe both the upgrade to a new POSIX correction state and a POSIX version change (see section “Installing an upgrade for a new POSIX correction status”), which may, for example, be necessary after changing the BS2000 version (see section “Installing an upgrade for a new POSIX version”).