Where has "Keychain First Aid" gone? On my machine running OS X El Capitan, there is no "Keychain First Aid" option in the Keychain Access app.

All documentation, including Mac OS Help in El Capitan, says to go to the Keychain Access menu and select Keychain First Aid. But my Keychain Access menu looks like this:



Where is Keychain First Aid??
Starting in OSX 10.11, you will need to open the Keychain Access app and go to Preferences &gt; Reset My Default Keychain.  "Reset" is a bit of misnomer; actually, it will move your old keychain to a separate database file, and create a new, clean keychain.

Next, if you do File &gt; Add Keychain, you can re-add your old keychain (for example, login_renamed_1) to the viewer.  You can then manually copy over your keys from the old keychain to the new keychain.  

You will have to re-enter your root password for each key that you copy, and it will throw errors at you, but in the end they will get copied over.