Backup keychains from hard drive
You have two ways to copy the Keychains directory

Finder -&gt; Go -&gt; Go to folder... -&gt; /Library/Keychains


or something like

cp -r /Library/Keychains ~/Desktop/MyKeychainsBackup [in terminal window]


However, the Keychains is saved with iCloud; you don't really need to make a local backup.