Recovery OS: nothing after quit from … Startup Disk

Discussion in 'macOS High Sierra (10.13)' started by grahamperrin, Jun 9, 2017.

  1. grahamperrin, Jun 9, 2017
    Last edited: Jun 10, 2017

    grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #1
    I used Recovery OS Disk Utility to mount (unlock) a Core Storage encrypted volume, then Terminal to attempt HFS-to-APFS (no conversion). I can't recall whether the (Command-Q) quit from Terminal was preceded by Command-W closure of the window. I probably did exit before the quit.

    When I first posted this topic, I recalled the issue as: after using Terminal, macOS Utilities failed to reappear.

    Symptom: a grey screen persisted for a few minutes.

    I chose to force off the power.

    Postscript

    Whilst attempting to reproduce the symptom, I realised the more likely steps to reproduce:
    1. with Recovery OS Terminal, use diskutil(8) to unmount any volume that might be used for startup
    2. quit Terminal
    3. open Startup Disk
    4. quit Startup Disk

    Environment

    Booted from an external hard disk drive, MacBookPro8,2 limited to USB 2.0.
     
  2. Studio K macrumors 6502

    Studio K

    Joined:
    Feb 17, 2013
    Location:
    United States
    #2
    --- Post Merged, Jun 10, 2017 ---
    I've experienced the same problem. Quitting Startup Disk in High Sierra Recovery OS results in grey screen and no ability to use mouse or keyboard. Forced Shutdown required.
     
  3. grahamperrin thread starter macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #3
    I didn't have that problem.

    I found a workaround that does not require force:
    1. with the empty grey screen
    2. point at the top left hand corner
    3. observe the menu bar
    4. ignore the Language Chooser menu
    5. use the Apple menu.
     

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