Admin accounts inadvertently converted to standard after Leopard install; fix
Accounts accidentally demoted.
Users are reporting a strange phenomenon where their administrator user accounts are converted to standard user accounts after installation of Mac OS X 10.5 (Leopard).
MacFixIt reader Ed Anderson writes:
"Installing Leopard reconfigured my primary user account to 'standard', and in doing so, played havoc with many apps and processes that require it to be at admin level; multiple requests for user names and passwords that I knew were correct, yet denials of service anyway. It would not even let me use the login/keychain update. Spent a half day going through user name and password reconfigurations to get things running again. Even now, I still get asked for a password where before I did not (like mounting network drives) - keychain still seems to be partially broken."
Another reader adds:
"The only account was converted from an Administrator account to a Standard account and thus I couldn't alter anything in System Preferences."
The solution for this issue is to create a root account and then assigning admin privileges to the relegated account by starting in single-user mode and entering these commands:
- mount -uw /
- passwd root (you will be prompted to create a password)
- passwd yourusername (again, you will be prompted to create a password)
- shutdown -r now
You can then startup normally, login into the root account and assign admin priveleges as you choose.
Alternatively, if you have a backup, you can perform reinstall Leopard using the "Erase and install" process, establish a new administrator account, and manually restore your data.