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How do I Pear TarDisk to my computer?

Pearing your MacBook is a simple, but permanent process. To prevent the potential for data loss, please make sure to follow the steps below carefully. Pearing makes edits to your operating system's core storage which results in a Macintosh HD that is additively larger. Please follow the twelve steps below:

  1. Purchase TarDisk: Obtain a Pear enabled TarDisk, which has not been used previously. (Only Pear-enabled TarDisks, which have not been used previously support the Pearing process.)  
  2. Create a Time Machine Backup of your system. Make sure that your backup is up-to-date. For information on how to enable your MacBook's existing Time Machine backup, visit Apple's website here. A TimeMachine backup is a necessary safeguard to the Pearing process. 
  3. (Optional) Create an online Backup. Use CrashPlan to create a free 30-day online BackUp of your MacBook. Note that an online backup should be in addition to your Time Machine backup, but not in-place of. An online back up may take anywhere from a few hours to a few days to complete. 
  4. "Turn-Off" FileValult and any installed third party antivirus software. After Pearing is complete, you may turn FileVault and antivirus software back "on". 
  5. Free up 8GB. Make sure that you have at least 8GB of free space for the Pearing process. This space is only needed temporary during Pearing.
  6. Unplug ALL Devices from your MacBook. Make sure your Laptop is connected to power and is running OSX Yosemite (10.10.2) or higher. 
  7. Turn off your computer. 
  8. (Optional, but HIGHLY recommended.) Confirm that your existing hard drive is running properly before Pearing and if it isn't, repair it. If you choose to skip this step now please be aware that you may need to run it later. (See Video Guide here).
    1. Turn your computer on and boot into Single-User Mode. To boot into Single User Mode, press the power button and hold down the Command and S keys simultaneously until you see white text appear on the screen.
    2. When the Single User boot sequence has finished, you’ll find a small command prompt at the bottom of the screen prefixed by a hash sign (#), when you see that type the following command exactly: fsck -fy
    3. Once fsck completes, if you see a “File system was modified” message, then you should run “fsck -fy” again until you see a message stating “The volume (name) appears to be OK” – this is standard procedure of using fsck. You may have to run it 3-4 times. 
    4. Type “reboot” then press enter, to leave Single User Mode and boot the Mac back into OS X as usual.
  9. (Optional) Verify status of your current storage. Once OS X is booted, confirm all is well by running the Disk Utility tool and either running the “Verify” tool or the "First Aid" tool to check on the drive's health. 
  10. Quit ALL programs. Hold down the Command key and press tab to see programs that are running. Quit each program. 
    Command + Tab
  11. Insert TarDisk. Slide TarDisk into your SDXC port. Remember, never use metal to remove your TarDisk. 
  12. Run TarDisk PEAR installer. If the installer does not launch automatically, clicking the program inside your TarDisk will open up a step-by-step installer. Be sure to read every screen. After the installer finishes, you will be prompted with a window asking you to restart your computer.  (For MacBooks that formerly did not have core storage, you will be prompted with a separate dialog and will be asked to restart your computer again. For these users a total of three directed restarts is required). This process will vary in length based on the size of your current hard drive.
    1. Once the application is open click "Pear."
    2. (FOR SOME USERS ONLY) If you do not see the following dialogue, please skip to step three. If you see the following dialogue click "continue." You will see a progress bar enabling core storage as shown in this guide. Once completed click "Restart."  Once restarted click "Pear" again as in step one, then continue to step three. 
    3.  Accept Terms of Service, that you have read Instructions, and that you have a recent Time Machine Back Up. If you do not have a Time Machine back up, now is the time to go back and create one. Once completed click "Continue."
    4. A dialogue will appear. Make sure all files are saved, then click "Continue" to restart your computer.
    5. After your computer has completed the application will launch again. Click "Pear" as in step one and you will be brought to the Pearing screen! Check out how much space will be made, then click the Pear icon.
    6. The following dialogue will appear. Make sure all of your applications are closed, then click "Continue." 
    7. A progress bar will appear, followed by the dialogue "Your Tardisk is now Pear'ed with your MacBook." Click "Restart" to complete the process!
    8. Upon restarting you will see the "Welcome to TarDisk Pear!" screen. Your MacBook has now been successfully Peared! Take the tour to find out how much space is now available.
  13. Finished. You will be shown how much space you created by Pearing. Your Macintosh HD will now show two HD volumes, however both volumes will show the combine size of the two.


Enjoy your new Peared MacBook!


If you have additional questions, please review this guide and confirm that all steps were properly followed. In the event that you intentionally skipped any of the optional steps above (i.e. Step 8), this may be the source of problems now. Before proceeding, please complete those skipped-steps now. If further assistance is needed, please follow instructions for Troubleshooting a Peared TarDiskand read the FAQ.