I had this problem when I was on High Sierra, so I copied my files on a hard drive and installed El Capitan. I'm just curious now — was that error recoverable? What I did: reset VRAM, reset SMC, repair startup disc, reinstall MacOS, fix file system and nothing helped.


1 Answer 1


This solution worked for my MacBook Pro: https://mrsystems.co.uk/blogs/news/too-many-corpses-being-created

Steps from the article:

  1. boot and hold cmd-R to start up from macOS Recovery
  2. If Filevault is on, mount the disk with Disk Utility and password
  3. Run these two in Terminal
  4. cd /Volumes/Macintosh\ HD/var/db/caches/opendirectory
  5. mv ./mbr_cache ./mbr_cache-old
  6. Restart
  • If you are using the non-apple keyboard then you will not able to go in Recovery mode So, Please use Apple keyboard
    – Hasan Khan
    Sep 4, 2020 at 4:36

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