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Unable to Install OS X El Capitan FileVault conversion in progress

I am trying to upgrade to El Capitan and a message pops up saying the following:

FileVault conversion in progress.

Use the "Security and Privacy" preference pane to check conversion status.


I had this problem from Yosemite since I bought a new MacBook Pro and left the default value for an encrypted volume on.


I have tried every solution I could find without being able to solve the problem or downgrade to an unencrypted version without sucess.


I could use your help as this issue now affect my ability to install the new MacOS.


Thanks in advance.

MacBook Pro with Retina display, OS X Yosemite (10.10.5), 15-inch, Mid 2014

Posted on Oct 1, 2015 6:51 AM

Reply
28 replies

Nov 25, 2015 8:52 PM in response to talyoehler

To stop the file conversion process, I had to cancel the install (along with the file conversion) and re-install. I was crossing my fingers in the hopes that nothing would be lost from my disk. Nothing was. I can't make ANY guarantees to you that you won't loose anything!!!


The El Capitan installer is named “Install OS X El Capitan”. This program is removed after install finishes. If it is gone, you will have to download it again. The recovery partition tools will let you connect to the app store and download another copy. You will find "/Applications/Install OS X El Capitan" if it has not been removed.


Obtain an 8 or 16 GB thumb drive.

Boot into the recovery partition by holding down the option key while rebooting.

Once the system is up, start the utilities residing there and look for /Applications/Install OS X El Capitan. Download if missing.

Insert thumb drive.

Format the thumb drive using the Disk Utility to format it to HFS+ with a GUID partition scheme, naming it INSTALLER.

Turn the thumb drive into a boot device installer using a Terminal session (double-click on /Applications/Utilities/Terminal. Hit "command +" a few times to enlarge terminal text if needed). note: Anytime you type something with spaces in it, each space MUST be prefixed with a backslash. Thus the funny looking command line below interspersed with backslashes. Copy+paste the following command line into the terminal:


sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/INSTALLER --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app --nointeraction


It will ask for your password. Enter it, hit return and soon you will have a new, bootable install device.


Boot off of the thumb drive (reboot with option key held down) and soon you will see the El Capitan install process unfolding on your terminal. I did not re-request encryption of my disk. When the install is complete, remove the thumb drive and reboot. Good Luck!


I saved a copy of the install file so that I would not have to wait through another download if something went wrong.


A good resource

Dec 7, 2015 11:00 AM in response to talyoehler

Hey, On the first terminal window did you run diskutil cs list again? You need to run that after you run ./corestoraged to see the progress.


Also, as for the terminal commands it makes better sense to do the following on the second terminal window:


cd /usr/libexec/


and then run:


./corestoraged


This will give you an empty prompt, that's ok. Just go back to the first terminal window and run: diskutil cs list


Hope that helps 🙂

Oct 16, 2016 7:01 PM in response to switheyw

Dude, you saved my ***! This worked! Thanks so much!


I was trying to install Sierra but the File Vault screwed things up and was paused just as described here, which completely blocked me. I could not even login to turn File Vault off! I followed all instructions exactly, and your solution worked. The only difference for me was that after the file conversion process had been completed, there was also an "optimization" process that then started after conversion had been completed. Rather than interrupt this, I opted to let it finish--which took about 2 hours! Once optimization was done, I was then able to use disk utilities to install a new OS, which turned out just to be the Sierra download that started all the hardships. All data was saved, nothing was lost, no settings changed. Phew! What a relief! Thanks so much!!!

Unable to Install OS X El Capitan FileVault conversion in progress

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