What are the steps you follow?
1. unload 16 binaries
2. install fresh 16 ASE
3. unmount user databases on 157
4. mount user database on 16 + online (- no upgrade)
5. run upgrade manually (- no upgrade either)
updatease you will need only if the ASE 16 has not been installed from scratch - it simply reinstalls the catalog procs...
or your steps are:
1. unload 16 binaries
2. unmount user DBs on 157 + shutdown 157 ASE
3. set automatic upgrade to true
4. boot ASE 16 using ASE 157 master device (+automatic system upgrade)
5. reinstall catalog (I'm not sure if you can use updatease or it is reserved for minor upgrades only - check doco).
6. mount user databases on 16 + online (-no upgrade).
7. run upgrade manually (-no upgrade either)
Which one of the above you use (or what is your alternative)?