diskutil list
/dev/disk3 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *15.5 GB disk3
1: Apple_HFS TRAVELDRIVE 15.5 GB disk3s1
diskutil eraseDisk -h
Usage: diskutil eraseDisk format name [APM[Format]|MBR[Format]|GPT[Format]]
MountPoint|DiskIdentifier|DeviceNode
diskutil eraseDisk HFS+ nasty GPT /dev/disk3
diskutil list
/dev/disk3 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *15.5 GB disk3
1: EFI EFI 209.7 MB disk3s1
2: Apple_HFS nasty 15.2 GB disk3s2
That is noted in the troubleshooting post and in the guides.Thanks that worked perfectly, should be added in unibeast as a possible solution.
Thanks GabLeRoux, it works perfectly for me. After formatting my USB stick 8Gb using Disk Utility, Unibeast 5.2.0 recognizes it perfectly but not Unibeast 6.2.0 for El Capitan install.I had same issue with UniBeast 6.0.1, I first thought it was about disk size so I went out and bought a 16gb usb3 stick (but used old mac with usb2). Ran again and had same issue. Then found danz69's link. In short, I needed to use GUID.
Check your current drives
Code:diskutil list /dev/disk3 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: FDisk_partition_scheme *15.5 GB disk3 1: Apple_HFS TRAVELDRIVE 15.5 GB disk3s1
Here's the command to format a disk
Code:diskutil eraseDisk -h Usage: diskutil eraseDisk format name [APM[Format]|MBR[Format]|GPT[Format]] MountPoint|DiskIdentifier|DeviceNode
I did this:
Code:diskutil eraseDisk HFS+ nasty GPT /dev/disk3
See now that the drive is using GUID.
Code:diskutil list /dev/disk3 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *15.5 GB disk3 1: EFI EFI 209.7 MB disk3s1 2: Apple_HFS nasty 15.2 GB disk3s2
Here we go, tried again, I've read in a few post where it says to keep open the finder window on "OS X Base System" opened by UniBeast when it's running. Created disk successfully. Disk is now 7,53Gb used so it should work on a 8Gb disk too.