

The Hard Drive is of size 1Tb, and Partitioned into 3 volumes.Ģ: Apple_CoreStorage Macintosh HD 120.5 GB disk0s2Ġ: Apple_HFS Macintosh HD +120.1 GB disk1Ģ: Apple_HFS My Passport 750.0 GB disk2s2ģ: Microsoft Basic Data HAHA FELLAS 249.7 GB disk2s3 Having the same problem, can't detect a Hard drive. *_DiskMountApproval ('disk1s1', DAVolumePath = '', DAVolumeKind = 'msdos', DAVolumeName = 'SPARTICUS') Comment=Approving Time=20150823-13:47:40.4268 the drive is still not recognized in either the startup disk preference or at the boot time option.

correcting this oversite did not fix the failure to boot to linux. **DAIdle (no DADiskRef) Time=20150823-12:53:29.7748Īddendum: I realized that for one of the drives I had not fomratted it with the MBR. *_DiskAppeared ('disk1s1', DAVolumePath = 'file://localhost/Volumes/SPARTICUS/', DAVolumeKind = 'msdos', DAVolumeName = 'SPARTICUS') Time=20150823-12:53:29.7738 *_DiskMountApproval ('disk1s1', DAVolumePath = '', DAVolumeKind = 'msdos', DAVolumeName = 'SPARTICUS') Comment=Approving Time=20150823-12:53:29.4567 **DAIdle (no DADiskRef) Time=20150823-12:44:00.8880ģ: Apple_Boot Recovery HD 650.0 MB disk0s3Īnd here's the output of disk activity when I push in the 4G drive (SPARTICUS) *_DiskMountApproval ('disk2', DAVolumePath = '', DAVolumeKind = 'msdos', DAVolumeName = 'STRAUSS') Comment=Approving Time=20150823-12:44:00.5237 Here is the Diskutil activity for one of these (16GB sandisk usb2):

but mac does not recognize these in its list of bootable disks. program runs fine and efi folder is there.

one is a 4GB Imation, one is a sandisk 16MB, the other is a hongkong mystery brand 128GB.
