Can't Format HDD

Discussion in 'iMac' started by Chazz08, Jan 13, 2014.

  1. Chazz08 macrumors 6502

    Dec 4, 2012
    A friend of mine accidentally formatted a boot CD to his HDD. Now, when he enters recovery mode, he can't reformat the hard drive to fix it. He said he did get rid of the DVD stuff on it and renamed it Macintosh HD, but when he tries to reinstall the OS it says there isn't a source to install the OS onto.

    Any ideas on how to fix this? Thanks!

    [EDIT] I found this and he is trying it now. I'll report back. It didn't have anything to do with Windows XP, but if this let's him reformat, it might work.
  2. Chazz08 thread starter macrumors 6502

    Dec 4, 2012
    Nope. Didn't work. Any ideas? It actually said that it couldn't find "disk0" or "disk0s2", which is the one that he said was the Mac HD one.
  3. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    Is it a newer (2011+) iMac? If it is, have him try holding command-option-r at boot to get to Internet recovery. Once that loads start Disk Utility and select the drive brand name at the top (like Seagate 500GB or whatever), then erase the while drive to Mac OS Extended format. Then quit Disk Utility and click reinstall OS.

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