I accidently deleted my entire /opt directory and must now replace everything. I have all the disks of sun studio/java studio/java studio creator etc. I have already replaced the lost csw packages (removed from pkg database and reinstalled). However the installer for sun studio will not allow reinstall. It goes throught he entire process without doing anything. There are no permissions errors and the install log returns almost empty.
Please advise.

If you have removed the packages and it stills doesn't want to install them again, I think you need to clean the product registry.

run "prodreg" to see if it still lists Studio packages.

If it does, run prodreg in command line mode (prodreg browse) to identify the UUID of the packages you want to clean.

Then run "prodreg unregister <UUID>" to remove the dangling packages.

See that page for details:

http://docs.sun.com/app/docs/doc/819...4m1vlj7?a=view

Thank you, that worked perfectly for all but one of the packages:

I have unregistered/reinstalled all of my packages except the App server and what came with it.

# prodreg browse
BROWSE # +/-/. UUID # NAME
======== ======== ==================================== == ===================
1 - root 1 System Registry
2 + a01ee8dd-1dd1-11b2-a3f2-0800209a5b6b 1 Solaris 10 System Software
3 + 8f64eabf-1dd2-11b2-a3f1-0800209a5b6b 1 Unclassified Software
4 + Sun Java System Application Server Platform Edition 1
5 + 9da0f2c0-0e08-10dd-c1de-0800209b793b 1 Sun Studio 9 IDE for Solaris
6 + 56f00640-0e08-10dd-c1de-0800209b793b 1 Sun Studio 10 Documentation Set
7 + 6e5cba80-0e08-10dd-c1de-0800209b793b 1 Sun Studio 10 Sun Performance Library
8 + 85e7f340-0e08-10dd-c1de-0800209b793b 1 Sun Studio 10 Source Distribution

as you can see the App server platform has an extremely odd UUID and no name.
the standard syntax doesn't apply, or at least won't work.

in the gui this error comes up when I try to uninstall

Exception in thread "Thread-4" java.lang.NullPointerException
at com.sun.prodreg.util.Utils.getInstalledPkgs(Utils.java:482)
at com.sun.prodreg.core.InteractiveUninstaller.run(InteractiveUninstaller.java:242)
at java.lang.Thread.run(Thread.java:595)

Is there a way tp directly edit a config file or something? The installer will not allow a new install with those entries still there. perhaps /var/sadm/install/productregistry?

Well, the productregistry is a simple text file (xml), you can try removing manually the faulty entries, at your own risks

The file is there: /var/sadm/install/productregistry

Of course, save a copy before attempting any modification.

Ok, I did so, and it worked.
Thank you for your help.