I followed instructions here carefully however I haven't get this working right. Here is what I did:
- Run WinSCP enter Hostname (Elastic IP of my Instance)
- enter username "ec2-user"
- enter public key file
- chose SCP for the protocol
- Under SCP/Shell settings I chose "sudo su -"
- Hit Login
- WinSCP asks me for passphrase key, Hit OK
- Shows up this error
Error skipping startup message. Your shell is probably incompatible with the application (BASH is recommended).
NOTE: This works on Putty