I'm not quite sure how you got in this mess, but here is how to fix it. (I am assuming here there is not some underlying hardware issue that got all this started). Hold command-option-r at boot and select your wifi when asked. ![]() Then you will see a spinning globe while the recovery utility downloads and installs. Once that is done you will see the recovery screen. From there launch Terminal from the Utilities menu and enter the line below exactly like I have it, including the quotes. That will blow off the Fusion drive. Code: diskutil cs delete 'Fusion Drive'Now quit Terminal and launch Disk Utility. You should see a screen like this offering to fix the Fusion drive. Go ahead and click Fix to rebuild the Fusion drive. Now quit Disk Utility and click reinstall OS X at the top and wait for it to finish and restart. This will put you on the OS X version that came from the factory. By Glenn Fleishman, Senior Contributor, Macworld| Jun 7, 2017 5:00 AM PT. It's not letting me reinstall the OS on a recovery startup. Recovery lets you install onto an erased partition, but only if Recovery wasn't erased, too! In that mode, when you choose to reinstall without erasing the drive, my recollection is. You can update to El Capitan after if you like. What you are seeing locked there in your second screenshot is the Recovery HD partition, and that is as it should be and not the problem. Ms access for mac student. The problem is you borked the Fusion drive somehow and this will fix it. I'm not quite sure how you got in this mess, but here is how to fix it. (I am assuming here there is not some underlying hardware issue that got all this started). Hold command-option-r at boot and select your wifi when asked. Then you will see a spinning globe while the recovery utility downloads and installs. Once that is done you will see the recovery screen. From there launch Terminal from the Utilities menu and enter the line below exactly like I have it, including the quotes. That will blow off the Fusion drive. Code: diskutil cs delete 'Fusion Drive'Now quit Terminal and launch Disk Utility. You should see a screen like this offering to fix the Fusion drive. Go ahead and click Fix to rebuild the Fusion drive. Now quit Disk Utility and click reinstall OS X at the top and wait for it to finish and restart. This will put you on the OS X version that came from the factory. You can update to El Capitan after if you like. What you are seeing locked there in your second screenshot is the Recovery HD partition, and that is as it should be and not the problem. The problem is you borked the Fusion drive somehow and this will fix it. My Mac running Lion was being slow, so I was decided to reinstall OS X. I don't have any Time Machine backups. Everything went file, but in the middle of the installation, it got stuck, and later the installation failed without any reason. So, I tried to reboot again, but it said that the reinstallation failed and asked me to reinstall again. I tried to reinstall, but nothing came up. So I tried to use Disk Utility to erase the startup disk and make a new partition. But, when trying to partition, Disk Utility said that it cannot unmount the disk. In Disk Utility, I found another disk called disk2 and Mac OS X Base System. As far as I know, I didn't see that disk2 in my disk list before. I tried to unmount it or erase that disk2, but it won't let me. So I tried using Terminal to force unmount that disk, but still it doesn't let me. Bitdefender vs kaspersky 2018. Is that disk2 the reason why I cannot partition my main HD? How can I unmount or erase that disk2 Mac OS X Base system? I would like to clean install OS X lion again. I already have a boot image on my USB drive. I just cannot start it because the installation fails and something is still running, I guess. Screenshot of Disk Utility.
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