Suppressing the annoying pop-up

From OpenZFS on OS X
Revision as of 16:02, 29 March 2015 by 92.227.138.126 (Talk)

Jump to: navigation, search


As of version 1.3.0, you should not see the message "The disk you inserted was not readable by this computer" unless one or more devices in your pool is a partition with a type code specifying a file system other than ZFS. The correct partition type GUID for OpenZFS on OS X is "6A898CC3-1DD2-11B2-99A6-080020736631," which may display as any of the following, depending on what tool you're using:

  • bf01
  • ZFS
  • EFI_USR
  • Solaris /usr & Mac ZFS
  • 6A898CC3-1DD2-11B2-99A6-080020736631

The easiest way to correct the partition type is to use gdisk which is distributed via Homebrew as the formula "gptfdisk" or via SourceForge as a pkg installer. The gdisk function for changing partition type is "t," as explained here.


Please note that you don't need to worry about fs type in the case you use coreStorage based encryption as explained in the encryption wiki page.

Retrieved from "https://openzfsonosx.org/w/index.php?title=Suppressing_the_annoying_pop-up&oldid=864"