Mac OS X 10.5: Troubleshooting installation, startup, and login issues

Resolution

• Issue: When installing Leopard, destination volumes may not appear in the installation window for a while.
  Solution: See Mac OS X 10.5: Installer destination window does not show drives.
• Issue: When installing Leopard, the only available installation option may be Erase and Install.
  Solution: See Mac OS X 10.5 - Only installation option is Erase and Install.
• Issue: After performing an upgrade installation of Leopard, an administator account may change to a standard one.
  Solution: See Mac OS X 10.5: Administrator user changes to standard.
• Issue: After completing an upgrade installation of Leopard and restarting the computer, a "blue screen" may appear for an extended period of time.
  Solution: See Mac OS X 10.5: "Blue screen" appears after installing Leopard and restarting.
• Issue: After installing Leopard on an aluminum 20-inch or 24-inch iMac (Mid 2007) computer, you may not be able to log in at the login window--your login name and password are accepted, but after a blue screen appears for a few seconds, the login window reappears.
  Solution: See Mac OS X 10.5, iMac (Mid 2007): Stuck in a "loop" at the login window after upgrading to Leopard.
• Issue: You may not be able to log in with a user account that has a password of 8 or more characters if it was originally created in Mac OS X 10.2.8 or earlier, after performing an upgrade installation of Leopard.
  Solution: Mac OS X 10.5: Unable to log in to account after an upgrade install.
• Issue: After installing Leopard, you may not be able to log in to a user account that has no password if it was originally created in Mac OS X 10.2.x, then migrated to Leopard.
  Solution: See Mac OS X 10.5: Can't log in to migrated account that has no password.
• Issue: Setup Assistant unexpectedly appears each time Mac OS X 10.5 starts up, and continues to appear after completing all pages in the assistant.
  Solution: See Mac OS X 10.5: Setup Assistant appears after every restart.