IMac in Recovery Mode

Here's what happened:
I was updating this iMac, Late 2009, to OS X Yosemite. During the update process, it said that "There was a problem installing OS X". Eventually, it went into recovery mode. I called Apple Support and the person said that the disk needed repair, but that option was greyed out. So she said you needed to recover the files by connecting the iMac to another Mac computer. I got the cable to do that, a FireWire, and I called Apple Support again. They talked me through it to the point after you connect the two computers, and up to where I restarted the messed-up iMac, while holding down the T-button. This made a big FireWire icon show up on the screen. However, nothing happened to the other computer. The messed-up iMac's hard drive never showed up, and nothing happened. I checked Disk Utility on the good Mac, and the options were the good Mac's HD, then six different options. They said AAPL FireWire HD Media. Underneath them was a Macintosh HD option. The Apple Support man said to take the messed-up iMac to a authorized support dealer for them to try. Is there any other option to do this that maybe we missed, besides ripping out the HD itself, physically? Thanks in advance.

1. Boot to your Recovery HD.
2. Open Disk Utility from the Main Menu.
3. Select the disk volume you need to erase.
4. Click on the Erase tab in Disk Utility's main window.
5. Set the format type to Mac OS Extended, Journaled.
6. Click on the Erase button.
If you need to reinstall OS X from scratch:
Install or Reinstall Mavericks or Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
OS X Mavericks- Erase and reinstall OS X
OS X Mountain Lion- Erase and reinstall OS X
OS X Lion- Erase and reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.

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  • How can I save files from disc recovery mode?

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    BellaMichelle wrote:
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  • Ipod Touch Keeps Going Into Recovery Mode

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    Message was edited by: sdutcher

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