★ SuperDuper: Create bootable hard drive clones, duplicates, and backups for Mac OSX

Posted on July 07, 2011


Hard Disk Clone and Duplicator


I ordered a new SSD (6g from OWC), and I needed a way to mirror my data from one drive to the next. I am running OSX Lion (GM), so that may be why I initially had so many problems.

I tried a few utilities to accomplish the disk cloning process, including Apple's Disk Utility, Carbon Copy Cloner and SuperDuper.

First up, Apple's Disk Utility kept failing, stating an “Input/Output Error”. I couldn't figure out why, so I moved on.

Next up was Carbon Copy Cloner; that didn't work out well, either. The process would start, but the app kept giving me permission errors, specifically around any of the MacPort files and the system logs.

Finally, there was SuperDuper. I was initially turned away by SuperDuper because it was telling me that the copy speeds were only 4mb/s. This may just be during the first minute or so, because I let it sit for a few minutes and then watched the speed jump to 30mb/s. It probably would have been faster if the O/S wasn't running, but everything ultimately worked great. The data was successfully copied, and the drive was made bootable. SuperDuper also included a nice option to check and repair existing disk permissions prior to the start of the cloning process.

SuperDuper is free, but it also has a paid upgrade if you want to schedule syncs/backups.

Price: Free / $27.95 | Trial? Yes | Homepage


  • Vin says:

    HI, i want to upgrade my disk from 250GB to 1TB, do you think SuperDuper is the right one for me?, i.m wondering if the difference between sizes affects de backup… (sorry for my english ;))

  • Jim says:

    I am replacing my MBP HD with an SSD.  When using super duper.dmg, after copying all the files, it makes the new drive read-only.  This doesn’t seem to be what is needed.  I want to put the new drive into the MBP in place of the old HD.  Can I then use UNIX to make the new SSD writeable?

Leave a Reply

Your email address will not be published.

Contact Us

Have a question? Send us a message. We'll get back to you soon.