Mid 2007 iMac - problem with install Clean El Capitan

I have a (very) old mid 2007 iMac that I tried to do a clean install of El Capitan to a USB flash drive.

I used the following instructions to create a bootable USB El Capitan:

http://Mashable.com/2015/10/01/clean-install-OS-x-El-Capitan/#5K.kLrHcpEq3

The USB boot media creation went through without any problems. However, when I try to start the iMac from the drive flash, iMac stays on the screen of the Apple logo for a few minutes and then restarts.

The iMac was initially Mavericks recovery utility is restarted after I erased the hard drive. To avoid any possible problems with the installer of El Capitan, I used an older DVD of Snow Leopard to remove the Mavericks recovery from disk. The drive is now without an operating system or recovery utilities.

I suspect a problem with the hardware with the hard drive or flash drive that I use. The hard drive has been erased with a single pass of zeros using disk utility. The flash drive, I regularly use as disk bootable for PC.

My only other option at this point is to install Snow Leopard, install upgrade to El Capitan, and then use the recovery of El Capitan to do a cleaning.

I was wondering if anyone else encountered this problem and has a solution.

Thank you.

Just to update.

I decided to take the long road with this to install El Capitan on this iMac.

Here are the steps I took to install OS x:

  • Wipe all existing partitions on the hard disk, including my former Mavericks recovery partition.
  • Installed Snow Leopard from the installation DVD. Updated Snow Leopard 10.6.8
  • A ran Installer El Capitan
  • Started in the El Capitan recovery utility. I have reset (formatted) the reader.
  • Re-installed El Capitan.

I could not only solve problems with my key USB install media. It wasn't a complete disaster since I already had existing media that I could use for my iMac back on its feet. My mistake was wipe my existing facility for the Mavericks before check my USB as bootable. Installation took much longer than I anticipated for this reason.

So, in conclusion, do a clean install on this model iMac is possible, but I highly recommend checking any bootable media before you delete your existing installation of Mac OS. The best route (and easier) is upgrading the OS.

Tags: Mac OS & System Software

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