Permissions For Mounted Backup Disk I just dropped a new SSD into where the optical drive was on my macbook pro. 

I did a clean install of 10.9, and i left the old drive as is without running migration assistance. 

My Old HD is now mounted and visible on my desktop.

When i try and goto /Volumes/OldDrive/Users/Foo or /Volumes/OldDrive/Users/Bar i now get a permission denied error. 

How do i grant myself super user powers to navigate through my old files in Finder?
One option is: 


select the folder
press Command-i,
expand Sharing &amp; Permissions
click the lock to authenticate
then click the plus button
add your active user account to the list
Optional: then click the gear menu and choose "apply to enclosed items". (this action is recursive and could take a while as it touches every file...)