My pleasure! But please see xenadu02's comment[0], which explains that one needs to quit and relaunch Disk Utility after selecting View > Show All Devices for

My pleasure! But please see xenadu02's comment[0], which explains that one needs to quit and relaunch Disk Utility after selecting View > Show All Devices for it to take effect. Sorry to have missed that; I ran into the problem on three different Macs while installing High Sierra and unfortunately went straight to the command line rather than testing more extensively. My apologies. [0] https://news.ycombinator.com/item?id=15386547 https://news.ycombinator.com/item?id=15386547