To install an upgrade, you need simultaneous access to the POSIX product files <oldversion> and <newversion>.
If additional products (e.g. JENV) are installed in POSIX then these products should be uninstalled before starting with the following steps or the associated product files have to be copied on the new pubset, too.
The following steps must be taken:
Create a new HOME pubset for continued use of the POSIX data.
Copy the old root and var file systems and the old POSIX product files (file names S*.POSIX-BC.<oldver>*) onto the new HOME pubset.
Read in the SOLIS delivery of the new POSIX version and proceed as follows:
Enter the file name of the root file system in the parameter file
SYSSSI.POSIX-BC.<newversion> in the line for the ROOTFSNAME parameter.Activate the version of the POSIX subsystem which has been changed in the subsystem by shutting down the BS2000 system and then restarting it.
Start the POSIX subsystem with the command /START-SUBSYSTEM POSIX.
The new POSIX version is started up with the old file systems.
After 'POSIX ready' (message at the console):
Start the POSIX installation program (/START-POSIX-INSTALLATION) and select 'Install packages on POSIX'.
Install the product 'POSIX-BC' with the new version number <newvers>.
Then stop the POSIX installation program.
Subsequently the product files of the old POSIX version can be deleted.