How to mount an encrypted disk from the command line

Not sure if this will be helpful, but I just wrote a script to unlock and mount a core storage Encrypted Disk like yours for myself. I had the same problem where I could get the disk unlocked, but not mounted. I finally realized that I needed a command to mount it after it was unlocked.

In terminal, you first have to unlock the Encrypted Disk and then you can mount it with a separate command. For you, that would look something like this:

diskutil cs unlockVolume E2DB4126-C04C-4AE1-B1AC-CDFF0218D537 -stdinpassphrase 

You will be prompted for the password to the Encrypted Disk. After this, your drive will be in an unlocked and unmounted state, so you still need to mount it with this command:

diskutil mount E2DB4126-C04C-4AE1-B1AC-CDFF0218D537

In case you were wondering, E2DB4126-C04C-4AE1-B1AC-CDFF0218D537 is the UUID of the disk you want to mount. I'm no scripting or CoreStorage pro, but your problem seemed similar to mine, so I hope this can help you. I got all this info from the diskutil man page if you run into any problems.

The disk is mounted in an enclosure which doesn't properly report a logical block size of 512 bytes. Instead 4096 bytes are used. The disk itself has a physical block size (Device Block Size) of 4096 bytes.

If the disk/volume don't show any errors in Disk Utility, I would assume that CoreStorage and the enclosure & hard disk aren't compatible.

I propose to use another method to encrypt your Time Machine backup:

• encrypted sparse image
• encrypted sparsebundle image (similar to FileVault1)
• encrypted image