Originally posted by: orphy
If you haven't created the mksysb, you can run mkszfile, fix up /image.data, and run mksysb without the -i option (man mksysb for more info) to create a mksysb with all the right things for reinstall.
If the mksysb is already on tape, I would recommend doing a reinstall and followed the steps above to create a new mksysb with the right PPSIZE and use that to reinstall. Trying to fix image.data on the tape is doable but it gets very complicated and it's probably not worth the effort.
If you use NIM, you can specify your own image.data to use for the install.
It depends on what exactly your needs are, you might also consider simply restoring the current mksysb and use "chvg -t..." to increase the PPSIZE.
Orphy