After Upgrading MP Hard Drive...?

[Mac In School]

Okay, It's stupid question day...

I'm going to upgrade my primary hard drive, then erase the old one and use it for data. I figure I'll give Carbon Copy Cloner a try.

After I copy stuff over, how do I specify that I want to boot from the new one? How will I even know which one it is? Won't they both have the same "Macintosh HD" name?

Any tips for making the old one "unbootable"?

I'm a little nervous about this. Thanks.

 

[zmttoxics]

The quickest way to see which disk is the one you booted off of is to get info for the drive on the desktop and check the size to see if it matches your new drive.

A better way is to open the terminal and type: df -h :to see which disk is mounted for root ( / ).

sh-3.2# df -h
Filesystem      Size   Used  Avail Capacity  Mounted on
/dev/disk0s2   233Gi  123Gi  109Gi    53%    /

As for picking which one to boot off, I believe you hold down the Alt (option) key during boot to pick a bootable disk to load.

 

[smirk]

To designate a startup disk, open System Preferences and click on the Startup Disk icon to bring up the Startup Disk control panel. Then just click on the hard drive you want to boot from and either click "Reboot" or simply quit the control panel.

Is that what you were asking for?