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I followed Klanomath's reply above to successfully recover my Macintosh HD. I had tried to resize it from ubuntu (Bootcamp) and completely stopped seeing my Macintosh HD partition. I had tried several posts and tools to write and rewrite partition tables without success and was about to give up. I followed the steps #5 to #8 from the post. I did # 5 and ...


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You need to reinstall Mac OS X Backup your system/data. Boot into Internet Recovery (CMD + R + i) Open Terminal Erase your Macintosh HD Volume diskutil cs deleteVolume 933B0D1B-9E56-4DB3-8853-013BE1C2C6E4 Erase Macintosh Volume Group diskutil cs delete 320B77F3-91C2-4221-B24C-D8B91C233D32 Erase SSD this should disk0, verify! diskutil ...


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If trying one more time to format HFS non journaled fails, you may want to use the erase and install steps from: https://support.apple.com/en-us/HT204904 Hopefully it's not a hardware error and you can just fix this with a clean erase. Installing to an external dive may also help you determine if it's an issue with procedure or your installer vs the ssd. ...


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I was encountering the same error and discovered it was an issue with my mac mistakenly thinking the SD card was locked. Apparently the sensor in macbook pros and air can get stuck. Crazy, but after hours trying different things in terminal and disk util, the solution was to blow really hard in to the SD drive then remount SD card and erase it as per ...


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Use the following steps. Open the Disk Utility application. Highlight the appropriate drive. Below is an example. Click the the icon labeled Partition. The following popup pane will appear. Determine the size you want for the new partition. Subtract this value from the size of the current partition. In this example, I need a 30 GB partition, so the ...


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The results you posted from the readgpt command leads me the following conclusions about your drive's partitions. The six partitions are listed in the order found on the drive. ~200 MB EFI partition (Usually hidden from the user) ~100 GB Windows partition ~75 GB OS X partition ~50 GB Windows partition ~650 MB OS X recovery partition (This is exactly the ...


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Yes, you can go ahead and install El Capitan to the smaller partition. You just need to run the "Install OS X El Capitan" application and select the proper destination volume. I would first use the Disk Utility application to erase this destination volume. You do not have to use a USB drive to install El Capitan. During the installation, the Recovery ...


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I was able to resolve this by booting through internet recovery command+option+r and run disk utility. I was able to delete 3 partitions and after reboot i was now able to run bootcamp assistant once again.


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Data Rescue from ProSoft* works, it has a trial and no-cost limited-recovery options. You won't get the whole volume recovered by freeware. It is unlikely you will get everything back, and if you are still using that drive your recovery percent goes down every hour as files get overwritten. Also unlikely you will get filenames back, just a great big folder ...


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I can hardly imagine someone will have a similar problem, but if they do: Seems like Bootcamp wants to see an EFI partition. Once again, here was the gpt show output from above: my-MBP:~ uname$ sudo gpt show disk0 start size index contents 0 1 PMBR 1 1 Pri GPT header 2 ...


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The use of Core Storage seems to be a common denominator in problems similar to mine. I used the sudo diskutil cs revert [Logical Volume guid] command in the Terminal application to get rid of Core Storage, and then restarted. Presto! My missing GBs were returned. The above command can only be used if the command diskutil cs list shows the Logical ...


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To correct the GUID error in your GPT, you need to start up from OS X Recovery over the Internet. Press and hold the command(⌘)optionR keys immediately after you turn on your Mac and hear the startup sound. For more information see the site: OS X: About OS X Recovery. Once started to OS X Recovery, select the Terminal application from the menu bar. Enter the ...


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The problem that you are experiencing is that OS X cannot natively read/write the NTFS partition. My suggestion is to copy that data to another drive/partition, format the partition to something that OS X can read like ExFAT (if you want OS X and Windows compatibility), then copy your data back. To read the NTFS partition so you can copy the files, you ...


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The first step in situations like this is to use the mouse to select each visible part of the drive on the left and use the info button. It will show you things that the command tool diskutil will if you open terminal and use it: diskutil list That will read the volume partition map and give you details on each partition with less detail than the info ...


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You can simply create a new partition using Disk Utility to regain those 60 GB for usage. Another possibily is to change the size of your existing partition, depending on its current file system.


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You can use Unetbootin to copy the Linux ISO to 1.2GB partition(disk4s3). If I were you though I would first rewrite the partition type as GPT instead of APM by running: diskutil partitionDisk disk4 GPT fat32 Linux 10% ExFat d2 10% ExFat d3 80% Then select the Linux partition on disk4 in UNetbootin to be the destination for the ISO copy.


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I eventually made a call with Apple support. They asked me to use the option first aid in Disk Utility, this didn't help. They then asked me to reboot my iMac in recovery mode and do the same thing again. This also didn't help. After these two options to repair my partition, they asked me to back-up whole drive and reinstall OSX. They told me that this ...


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In my case, I had already disabled FileVault on my primary partition to allow Boot Camp Assistant to resize the primary partition to accommodate a BOOTCAMP partition, but after manually deleting the partition, Disk Utility couldn't (wouldn't?) resize the primary to max while it was mounted to filesystem root. I rebooted to Internet Recovery Mode by pressing ...


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Your computer uses two partition tables stored on your internal drive. The first is the Master Boot Record (MBR) partition table and the second is the GUID Partition Table (GPT). You used the commands fdisk and gpt to print out most of the contents of the MBR partition table and GPT, respectively. For the most part, Windows (booted via BIOS) ignores the GPT ...


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I have made a fork of fuse-ext2 which installs everything in /Library and /usr/local, so that you don't have to disable SIP in Mac OS X El Capitan. Glad if you try it ;-).


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To most easily resolve this, you need to erase your USB drive with a "Master Boot Record" scheme. Steps: Open Disk Utility Select the USB drive Click "Erase" Choose Format "MS-DOS (FAT)" MOST IMPORTANT: Choose Scheme "Master Boot Record" Click Erase button Many thanks to nholtappels for figuring out the problem!


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Alright, I fixed it. I installed a Live image to my flash drive and copied the TestDisk software to it. My live image was Windows 10 To Go, but I believe any OS could handle it. Then, I ran a scan using TestDisk, and re-enabled the "deleted" partitions. After doing this, I wrote the new GPT to disk, and rebooted. Held the option key, and the partitions ...


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The problem is not that you don't have an MBR. The problem is that an MBR can only have 4 partition entries. On an out-of-the-box fresh install of OS X, you'd be using 3 of those partition entries already; one for the EFI partition, one for the Mac HFS partition, and one for the recovery partition. That leaves only one MBR slot available for the Boot Camp ...


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FIX WITH ACCESS TO SHARED PARTITION To get Windows to boot, you can try entering the following in gdisk from OS X. Before entering the command, you will have to disable System Integrity Protection (SIP). If Windows boots, you will be able to access the new shared partition from Windows. If Windows does not boot, follow the instructions in the section titled ...


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I got it to work by using gptsync (downloaded from here). When I booted into recovery mode, I could open the terminal and run ./gptsync /dev/disk0. This created a hybrid MBR/GPT and allowed me to install Windows.



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