Previous 1 2 3 Next 33 Replies Latest reply: Jul 10, 2013 6:36 AM by O'Molohon at home Go to original post
  • the tall Level 1 (0 points)

    What circumstances are there to run 'repair disk'?


    Also, What do you mean 'run it off the clone'?

  • worksafe Level 2 (180 points)

    He could mean one of two things, either partition you HD, one being SL, the other being Lion or if your lucky enough to have another Mac. I'll probably try it on an older Mac, though it will be slower than molasses at −40 before trying it on my newer Mac.

  • The_MacWorks Level 1 (15 points)

    By "running it off the clone" he means he uses either:


    Superduper (!), or


    Carbon-copy-cloner (


    to make a duplicate of his complete Hard Drive on an other external HD of the same size or bigger. This is called a clone.


    He then starts up with that "clone" and updates it with the new system update. He does this to check compatibility and to ensure that every thing works together on his computer before he does the upgrade on his internal Hard Drive.


    Superduper has a free trial that will do this task (cloning for an upgrade) but its worth the small fee to have extra features on the paid version to make backups etc in the future.


    Apples Disk Repair is safe to use in most circumstances.

  • the tall Level 1 (0 points)

    Wow, thank you, but they said Mac was easier than Windows!/!!?

  • PrDm Level 2 (345 points)

    There is some over thinking going on here. Most respondents have very elaborate systems with multiple peripherals attached and tons of software, even beta. The vast majority of Mac users have stand alone machines with not much more than came on them out of the box. Most have never heard of Apple Discussions and blithely let Software Update do its thing. Successfully.


    The only precaution necessary is what abrody posted up top in 1000 point font. Make sure to have a backup.

  • a brody Level 9 (65,736 points)

    It is easier.   In spite of the Macdefender malware, I've never had to install an anti-virus or anti-malware software on my Mac.  When my wife saw the link that sounded like Macdefender, she called me, and I told her to shut down her computer and not click on anything.     I've gone into her downloads folder and removed anything that was an installer or anything that looked like it didn't belong since she doesn't install anything on her computer. Trojan horses are only as effective as the savvy of the user.    If a user never intended to install anything, they shouldn't.    Don't assume because a popup window says "A virus has been detected, you must install some security software, Apple Computer" that it is the real thing.  Apple would never do such a thing.  And I go even as far as to disable all Software Updaters, and only install Software Update from   That way I know if a message comes up on the screen it must be a hoax.

  • worksafe Level 2 (180 points)

    They are.

  • johnfromsherborne Level 1 (0 points)

    After updating my Macbook Pro to 10.6.8 this morning, I discovered that web pages were not loading properly and none of my video applications were working.

    I followed your suggestion to instal the Combo version in safe mode and everything now works as it should. Many thanks for the tip, it saved me a lot of time and anxiety.

  • WZZZ Level 6 (12,855 points)

    That is excellent news. You're welcome.

  • Niall Mallyon Level 1 (65 points)

    Just to say that this is (apart from my own postings on the same subject!) the single best piece of advice to anyone upgrading their Mac OS.


    My suggestion is for people to copy the text in the posting and save for future reference.


    By adhering to these simple steps you will minimise potential issues with upgrades.


    It beats me why Apple still allow delta updates via Software Update.


    Best Regards


  • Topmounter Level 1 (30 points)

    10.6.8 killed my 24" iMac... the machine will no longer boot.  I just get a weak sounding attempt to power-up and nothing else happens.

  • worksafe Level 2 (180 points)

    Can you use the SL install disk to boot with?

  • the tall Level 1 (0 points)

    And combo in normal mode not 'safe mode' would do too, presumably?

  • Niall Mallyon Level 1 (65 points)

    Yes, though safe mode is better as it keeps stuff thats running to a minimum and that way you are likely to avoid 3rd party app issues with the update.

  • a brody Level 9 (65,736 points)

    It would appear that Apple has released a 10.6.8 only Thunderbolt update:


    If your machine was released new in 2011, it may be worthwhile to upgrade with this, to fix issues with your computer.