How do I know when it is done? Terminal says, "Copying installer files to disk..."
We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:
#1) Respect the privacy of others.
#2) Think before you type.
#3) With great power comes great responsibility.
Password:
Ready to start.
To continue we need to erase the disk at /Volumes/ELCAPITAN.
If you wish to continue type (Y) then press return: Y
Erasing Disk: 0%... 10%... 20%... 30%...100%...
Copying installer files to disk...
I got this far, and I am waiting.
iMac, OS X Yosemite (10.10.5)