Boredom (Goo) Mac OS

Raspberry Pi Imager is the recommended option for most users to write images to SD cards.

Bored of Boredom is a not-for-profit, student-run organization committed to providing free educational enrichment for all. Our weekday group classes. From the Apple menu, choose 'System Report', then click on 'More info.' Click on 'USB' (or 'Card Reader' if you are using a built-in SD card reader), then search for your SD card in the upper right section of the window. Click on it, then search for the BSD name in the lower right section. It is in the form diskN (for example, disk4).

Determine SD device

  • Insert the SD card in the slot or connect the SD card reader with the SD card inside.

Command Line

  • diskutil list

    Example (the SD card is /dev/disk2 - your disk and partition list may vary):

Graphical / Disk Utility

  • From the Apple menu, choose 'System Report', then click on 'More info...'.
  • Click on 'USB' (or 'Card Reader' if you are using a built-in SD card reader), then search for your SD card in the upper right section of the window. Click on it, then search for the BSD name in the lower right section.It is in the form diskN (for example, disk4).Record this name.
  • using Disk Utility, unmount the partition.Do not eject it.

Copy the image

Command Line

Note: The use of the dd tool can overwrite any partition of your machine.If you specify the wrong device in the instructions, you could overwrite your primary Mac OS partition!

  • The disk must be unmounted before copying the image

  • Copy the image

    Replace N with the number that you noted before. Note the rdisk ('raw disk')instead of disk, this speeds up the copying.

    This can take more than 15 minutes, depending on the image file size.Check the progress by pressing Ctrl+T.

    If the command reports dd: /dev/rdiskN: Resource busy, you need to unmount the volume first sudo diskutil unmountDisk /dev/diskN.

    If the command reports dd: bs: illegal numeric value, change the block size bs=1m to bs=1M.

    If the command reports dd: /dev/rdiskN: Operation not permitted, go to System Preferences -> Security & Privacy -> Privacy -> Files and Folders -> Give Removable Volumes access to Terminal.

    If the command reports dd: /dev/rdiskN: Permission denied, the partition table of the SD card is being protected against being overwritten by Mac OS. Erase the SD card's partition table using this command:

    That command will also set the permissions on the device to allow writing.Now issue the dd command again.

Eject

After the dd command finishes, eject the card:

As of Mac OS X 10.10, Apple will automatically update the partition scheme of the drive to use CoreStorage on any computer with Intel's hardware-based cryptography technology. This will be the default for new systems, but can also be automatically modified during a Mac OS X update to Mac OS X 10.10. At this time, CoreStorage is not supported by Symantec Encryption Desktop for the Drive Encryption feature.

For more information on system requirements, please see the Symantec Encryption Desktop 10.3.2 for Mac OS X Release notes

NOTE: CoreStorage technology is used by Apple to enable their Fusion Drive technology and FileVault 2 encryption technology. If either of these technologies are being used on the Macintosh system, these features will need to be disabled to encrypt the drive with Symantec Drive Encryption. This article describes how to revert a CoreStorage logical volume to a physical volume when neither Fusion Drive or FileVault 2 is being used.

CAUTION: As these steps go over modifying the drive partition layout, it is recommended to have a recent backup before performing these steps.

This process requires the use of the command line utility Terminal located in /Applications/Utilities/ and also requires a local administrator account to run. If you are logged in with a domain user, you can run the 'switch user' command to log in as a local admin:

su localuseraccount

Boredom (goo) Mac Os X

Tip: To open Terminal, on the keyboard, press the command key + the spacebar key, this should open the spotlight field. Type 'terminal', and hit enter, this should launch the Terminal application.

Once Terminal is launched, run the following command:

diskutil cs list


If CoreStorage is enabled, the following information will be seen with unique data for the Mac computer:

Note the bolded lines above:

and

As long as 'Revertible' equals 'Yes (no decryption required)' the volume can be reverted. Run the following command followed by the Logic Volume UUID (underlined in the example above) to execute the revert operation as is listed in the following example:

sudo diskutil cs revert 5ACC8C0D-005C-4693-9EC6-9F6725A42D66

Once the conversion is complete, restart the computer.

NOTE: In some rare instances, the computer will restart to the built-in recovery partition if available, or present a system not found error. In most of these cases, simply resetting the startup disk will boot the computer appropriately. From the recovery parition choose the menu in the upper left: >Startup Disk and choose your internal drive. Alternately you may hold option after the statup chime and your disk will be listed.

Verify CoreStorage has been disabled by launching Terminal again and run the following command:

If CoreStorage was disabled, the following will be seen:

No CoreStorage logical volume groups found

Symantec Encryption Desktop 10.3.2 MP7 and above can then be installed on the system, and the drive can then be encrypted. For information on which versions of Symantec Encryption Desktop 10.3.2/10.4 can be installed on which versions of Mac OS X, see article TECH174563.

Note: CoreStorage or FileVault2 can also be disabled from Boot option by following below mentioned steps with a help of Mac Genius. Please do take a backup of your computer before performing any changes on your computer:

Using Disk Utility
1. Boot your Mac and hold down ⌘-R (Command –R) to boot from the Mac’s Recovery HD partition.
2. Open Disk Utility.
3. Select your locked hard drive.
4. Under the File menu, select Turn Off Encryption…
5. When prompted for a password, you can enter your password for the drive. Once provided, decryption of the encrypted volume should begin.
The drive should begin decrypting.

From command line
1. Boot your Mac and hold down ⌘-R (Command –R) to boot from the Mac’s Recovery HD partition.
2. Open Terminal.
3. Run the following command to get the UUID of the encrypted drive: diskutil corestorage list
4. Once you have the UUID, you can unlock the drive using the following command: diskutil corestorage revert UUID -stdinpassphrase
5. You’ll be prompted for the password/passphrase of an account that’s authorized to unlock the encryption. Once provided, decryption of the encrypted volume should begin.
The drive should begin decrypting.

Enrollment Issues with CoreStorage

(goo)

When enrolling a Mac client to a Symantec Encryption Management Server with the auto-encrypt functionality enabled, and CoreStorage in use on the Mac, the following error will be displayed:

Boredom (goo) Mac Os Catalina

An Error Occured
PGPError :-12000

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This occurs as a result of CoreStorage being in use on the system.
If the system still cannot be encrypted, and the system is running Mac OS X 10.11, El Capitan, disabling SIP is also needed. See article TECH235027 for more information on this.
Follow this article to disable and re-enroll the Mac user. To re-enroll, follow the steps in article TECH178358.

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