Uninstall GECAMed on OS-X

FATAL: password authentication failed for user “postgres”

This problem occurs when a there has been an old installation of GECAMed on this MAC which has not been completely removed. To remove GECAMed on a MAC you need to do the following things:

1. Delete the folder 'GECAMed' in your Applications folder.
2. Delete the folder 'PostgreSQL 8.3' in your Applications folder.
3. Delete the folder 'PostgreSQL' located in /Library/
4. Delete the folder 'postgresql-8.3' located in /Library/StartupItems/
5. Delete the folder 'jboss' located in /Library/StartupItems/
6. Delete the System User PostgreSQL in your System Preferences→Accounts
7. This is how to enable the root account on OS-X:
   • Enable the root user:
     1. Open Directory Utility, located in the Utilities folder in the Applications folder.
     2. Click the lock to make changes. You will need to enter an administrator name and password.
     3. Choose Edit > Enable Root User.
     4. Enter a secure password for the root user, then enter it again in the Verify field, and click OK.
   • Enable the root user in Snow Leopard 10.6.x
     1. Open the Directory Utility located in /System/Library/CoreServices/.
     2. Click the lock to make changes. You will need to enter an administrator name and password.
     3. From the Edit menu, select Enable Root User.
     4. Enter a secure password for the root user, then enter it again in the “Verify” field, and click OK.
     5. Reboot your system.
8. Now the GECAMed installer should work.