hard reinstall, how?

Discussion in 'OS X Mavericks (10.9)' started by zephonic, Aug 11, 2014.

  1. zephonic macrumors 65816

    zephonic

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    greater L.A. area
    #1
    I just completed a so-called reinstall (on my 2013 MBA) and turns out it is anything but. It may have reinstalled the OS, but everything else remains as is.

    I want to do a 'hard' reinstall, like you could with with 10.6 and older. Pop in the OS installation DVD, reformat the system disk and do a clean install.

    Is that no longer possible or is there another way to do it nowadays?

    Thanks.
     
  2. dzejms macrumors member

    dzejms

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    London
    #2
    You can. Just make a bootable usb or burn 10.8 on dvd.
     
  3. zephonic thread starter macrumors 65816

    zephonic

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    #3
    Bootable of what? I have a bootable backup, but I want a clean reinstall.
     
  4. dzejms macrumors member

    dzejms

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    #4
    Download Mavericks installer from App Store then use DiskMaker X to create bootable usb of Mav. It will work the same way like DVD in the old days.

    You can always boot from recovery partition of the current setup too. Format hdd and do the clean install.
     
  5. zephonic thread starter macrumors 65816

    zephonic

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    #5
    Thanks. I just did the latter, or so I thought. But nothing was reformatted, it just reinstalled the OS and left everything else as is. I don't remember seeing an option to 'hard' format the disk.

    Or are you saying I should just do a hard format from disk utilities? Will that leave the restore partition intact?
     
  6. dzejms macrumors member

    dzejms

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    #6
    You need to go to disk utility from top menu before you start installation.
     
  7. zephonic, Aug 11, 2014
    Last edited: Aug 11, 2014

    zephonic thread starter macrumors 65816

    zephonic

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    #7
  8. dzejms macrumors member

    dzejms

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    #8
    It should. If not make bootable usb as I mentioned above.
     
  9. ABC5S macrumors 68040

    ABC5S

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    #9
    Download Mavericks from app store > Do not open it, just leave it alone > Have DiskMaker X handy > Open, and use DiskMaker with a thumb drive by following the instructions.

    Now restart the system pressing down the option key > Once it appears click on the just made thumb drive boot icon > In the next box, click on Disk Utility > Now click on MacHD, and erase it. Close out the disk utility, and now do a clean fresh install of Mavericks

    http://liondiskmaker.com DiskMaker X 3.0.4
     
  10. Bruno09 macrumors 68020

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    #10
    The best way to go is making a bootable USB installer with DiskMaker X.

    However, for information, since you have a bootable backup (a clone, I guess ?) you might do this :

    - copy over the Mavericks Installer (Applications folder) from your Mac to the bootable clone

    - restart and boot up from the clone

    - launch Disk Utility, select Macintosh HD (internal HD) and erase it (erase tab/erase)

    - launch the Mavericks installer

    - select the (internal) Macintosh HD as destination
     
  11. Weaselboy Moderator

    Weaselboy

    Staff Member

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    #11
    There is no need to make a USB key installer to do a clean install since your Mac came with Mavericks.

    Hold command-option-r (all three at once) when you boot. You will see a spinning globe while the recovery util downloads. Once that is done go to the erase tab and select the drive itself at the very top above Macintosh HD then select Mac OS Extended (Journaled) in the drop down and apply the change.

    Then quit Disk Util and click reinstall OS X and wait of the OS to DL and install. Done.
     
  12. Bruno09 macrumors 68020

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    #12
    :eek::eek:

    I have misread the original post :rolleyes:

    2013 MBA ---> shipped with Mavericks ---> Recovery system

    Apologies :eek:
     
  13. zephonic thread starter macrumors 65816

    zephonic

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    greater L.A. area
    #13
    Thanks all for the suggestions. Turns out there is no need for a USB drive. It works exactly as described in the link I provided above.

    Btw, my MBA came with MountainLion, but is on Mav now.

    Fwiw, the install wasn't painless. I'd recommend not doing that over wifi.
     
  14. ABC5S macrumors 68040

    ABC5S

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    Florida
    #14
    You are right. Try to use a cable modem for the download
     

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