SuperDuper - How to backup a 2nd drive?

Discussion in 'macOS' started by lay9eggs, Apr 9, 2019.

  1. lay9eggs macrumors newbie

    Apr 21, 2010
    I've been using SuperDuper to backup my main "Drive 1" to "Drive 2". Now I would like to have an additional backup "Drive 3" for a peace of mind. However, I'm getting this instruction:

    Unable to locate volume. Please attach or mount the volume named drive 2. If you can't find this volume, or it was erased outside SuperDuper!, Click cancel.

    It seems like SuperDuper is still locating Drive 2 (which is obviously not plugged), and Drive 3 is not showing up in the drop-down menu. I'm using all Seagate Backup Plus drives. Not sure if it is a formating issue or something else that I don't know.

    Thank you for your help:)
  2. Fishrrman macrumors P6


    Feb 20, 2009
    Is "drive 3" going to be another clone of "drive 1" ??

    In other words, a "second backup copy" ??

    Then, just connect drive 3 to your Mac.
    Open SuperDuper.
    Set the internal drive (drive 1?) as your source.
    Set drive 3 as the (new) target.
  3. CoastalOR macrumors 68020


    Jan 19, 2015
    Oregon, USA
    Try using Disk Utility to verify that Drive 3 is formatted for Mac OS Extended (Journaled). Most new drives are formatted as Windows NTFS until formatted for the Mac.
  4. lay9eggs thread starter macrumors newbie

    Apr 21, 2010
    Hi, Sorry for the very late response. I had to leave town for a while. I got it! Thanks for your helpful answer.
  5. JonRS macrumors newbie

    Apr 27, 2019

    I purchased SuperDuper to automate backups on my wireless network. SuperDuper cannot handle external usb drives larger than 2 TB. See below the discussion I had with Dave at Shirt Pocket. Dave says there is no difference between Carbon Copy Cloner and SuperDuper. We'll have to agree to disagree. Carbon Copy Cloner worked without problem.

    SuperDuper has problems:


    There REALLY IS a difference. I lived through the difference. I’ve been using computers for 30+ years. I know my way around. I don’t know everything, that’s why I emailed you for your help which hasn’t helped. Your response to my specific problem is a bit blind to what others say about SuperDuper and CCC. Even if I could get SuperDuper to work, I don’t want to anymore because I won’t put anymore time into it or these chit chat emails. Your customer service was great right up until your last email. My computer may present challenges to SuperDuper, but you should be willing to admit SuperDuper may not be good at handling this particular challenge. CCC handled it without any problem. I’m not having any chit chat with CCC. It wan’t needed. It worked without any of this fuss. Enough already!

    Have a great weekend. I finally will because I stopped trying to get SuperDuper to work.

    Have a good life.


    On 4 TB
    -See paragraph 2 in my previous message. Clones are supposed to boot, start, run,…, the computer, right?

    Booting a computer refers to the process of powering on the computer and starting the operating system. ... The boot process loads the operating system into main memory or the random access memory (RAM) installed on your computer.

    The SuperDuper clone wouldn’t boot. It’s on the 4 TB USB drive but for some reason it isn’t in a form that works whereas CCC on the same 4 TB USB drive does.

    On 4 TB
    1. Restart with Option key to bring up Startup Manager. Only disk that appears is internal hard disk, doesn’t show SuperDuper Clone on USB disk.
    2. Preferences, Startup Disk, SuperDuper Clone on USB disk appears. Select as Startup Disk. Restart, grinds and grinds and then starts ups with the internal startup disk. USB disk not recognize by laptop OS.
    3. CCC works with same attempts as 1 & 2 above.

    On 1.5 TB
    Works with both SuperDuper and CCC.


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4 April 9, 2019