But the "Scheme" popup menu does not appear in the panel. If I select the secondary item in that list (Lexar), I can successfully do a format operation. No matter what Scheme I choose, I get an error when trying to format the item higher in the hierarchy in the sidebar to the left (Lexar USB Flash…), as shown in the screen shot above. Mysterious error when formatting higher item The third one ( Apple Partition Map) is for booting old Macs (68K and PowerPC rather than Intel chips). Why is this offered as a scheme for "Mac OS Extended (Journaled)"? That really threw me, and prompted this Question. Disk Utility’s View option shows devices, not just volumes. The second one ( Master Boot Record) is old, from the 80's DOS 2, for old PCs. Select the drive description just above the drive name for the device you want to format. Considering HFS+ has been around since 1998, it’s about time for a refresh. It’s worth noting that starting with Mac OS High Sierra (10.13), Apple will switch to the new APFS or Apple File System. Booting is not an issue for my use of this flash drive. This brief guide will show you how to use Disk Utility to format a drive or partition with the HFS+ file system. I know the first one ( GUID Partition Map) is for booting modern Macs. When using Disk Utility 16.3 with macOS Sierra to format a "thumbdrive" USB 3 Lexar flash drive (64 gigs), when I choose a Format of ‘Mac OS Extended (Journaled)’, I get a list of three Scheme items:
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