Resolved Repairing EFI

Discussion in 'OS X Mavericks (10.9)' started by Junel, Apr 3, 2014.

  1. Junel, Apr 3, 2014
    Last edited: Apr 4, 2014

    Junel macrumors newbie

    Joined:
    Apr 3, 2014
    #1
    Hi All,
    Wondering if you can help me please.
    I have a 13" 2012 MBP upgraded with a Samsung 840 Pro 256GB SSD. Now the issue I had is that today, when adding a song into iTunes, it started coming up with errors. No issues I thought, just force quit iTunes and reopen, however, it would fail to reopen.

    I then decided to restart my mac, however, every time I clicked restart, it wouldn't restart, I therefore made the silly error of holding the power button to switch off, now, it won't boot up using the SSD.

    I've tried safe start, however to no avail. I have my original MacBook Pro HDD in a USB caddy which I left how it is. I am now booting of that and trying to copy my user files over to an external HDD. Went into disk utility and was told that my EFI is missing.

    I have ran "diskutil list" and this is what I've got:

    Please advise on what I can do, thanks!
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    I assume disk0 there is your SSD. There should be an EFI partition there like you see on disk1.

    If you had the SSD working at one point, you obviously had a functional EFI partition and now it is gone. If you were not messing around with partitions, nothing would cause this to happen on its own. I suspect you have a bad SSD.
     
  3. Junel thread starter macrumors newbie

    Joined:
    Apr 3, 2014
    #3
    Hi Weaselboy,

    Thanks for the quick reply, I haven't been messing around with partitions, I don't have the need to, the only thing I did was a hard shutdown due to the issue described.

    Trying to copy my user directory over onto an external HDD by just a simple copy and paste, or is there a special way to do this?

    Should I just wipe the drive and reinstall for now or rearrange to send my SSD back how it is?

    Thanks Again.
     
  4. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #4
    To copy your stuff off select the SSD and do a command-i to get the get info panel then check the box at the bottom to ignore permissions on the drive. Hopefully that will let you drag and drop some data from the SSD to another drive. It may not work at all with the drive being bad like this though.

    I would just use Disk Util to erase the SSD if you can to get your personal data off there then exchange it. Sounds like this one is a goner. :(
     
  5. Junel thread starter macrumors newbie

    Joined:
    Apr 3, 2014
    #5
    Ahh, I've forgotten to click select permissions, if it comes up with permission errors later on in the copy, I know what to do, or I know what to copy anyway and just to pick and choose.

    Not looking forward to the massive speed decrease when putting my old HDD in, I may try and erase and reinstall for now, and call up eBuyer tomorrow and explain that I am going to want a new drive soon.

    Thanks for you help!
     
  6. Junel thread starter macrumors newbie

    Joined:
    Apr 3, 2014
    #6
    I have just spoken to AppleCare, they've also concluded that the SSD is knackered, just rang Amazon which is where I actually bought the drive from and they have offered me a full refund.

    Not sure on what to go with next, so started a new thread in the hardware section of here!

    Thanks for all your help Weaselboy :)
     

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