Maczfs on Logical Volume

[Skrb]

I have followed these steps (ZEVO) for setting up zfs (maczfs, 10.8.3) with encryption. Everything works fine, till I restart the computer. After the restart, diskutil informs me that the file system is incorrect and refuse to mount my ZFS pool disc (Workspace is a logical disc that contains zpool with zfs): **Mount failed** The disk “Workspace” could not be mounted. Try running First Aid on the disk and then retry mounting. When I run the Verify Disc, I get an error: ... The volume <UUID OF MY ZFS LOGICAL VOLUME> appears to be OK. Checking file systemChecking Journaled HFS Plus volume. Invalid B-tree node size The volume could not be verified completely. Error: This disk needs to be repaired. Click Repair Disk. The cause of the error is that the Logical Volume is ZFS. How can I mount my ZFS partition? I wonder whether it is not an issue with maczfs or the way I created my pool (just: zpool create /dev/disk2). Thanks, Wojtek

[Skrb]

Solved.
 
  1. Create an Keychain Access entry for the LV:
      

      Kind: Encrypted Volume Password
      Account: <UUID>
      Where:  <DISK NAME> (as in *Disk Utility*)
  
   So, the volume is automatically unlocked on the system start.

 2. On the system start, ignore error messages from Disk Utility, choose Eject. 
  
 3. On the system start, ignore (CANCEL), pop-up asking for the password for (zfs) LV  

 4. Get zpool (ZPOOL in my case): sudo zpool import -f ZPOOL

I have misinterpreted the disk-utility error messages. 
 
Regards,
Wojtek

[Graham Perrin]

Some of this is within, or comparable to, the ZEVO-oriented answer to a question in Ask Different: 

How can ZFS be used with encryption on OS X?

<http://apple.stackexchange.com/q/52919/8546>

> 2. On the system start, ignore error messages from Disk Utility, choose Eject.

In the MacZFS prototype area, we might aim to design things to avoid that symptom. 

Regards

Graham