MacBook ne boot plus après migration High Sierra : solution
En l'absence de disque externe, j'ai trouvé ça qui a marché pour moi :
crashed: too many corpses being created - Apple Community
- Restart your Mac and hold down Command-R tostart up from macOS Recovery.
- If the startup drive has FileVault turned on, open Disk Utility and proceed with the next step. If FileVault is off, skip to step 5.
- Select the startup drive and click Mount in the Disk Utility toolbar. When prompted, select a login name and enter the password. Then click Unlock to mount the startup drive.
- Quit Disk Utility.
- Choose Utilities > Terminal from the menu bar.
- Type this command in Terminal:cd /Volumes/Macintosh\ HD/var/db/caches/opendirectory/
Modify the command to reflect the name of the startup volume if it's not Macintosh HD. Remember to use an escape character \ before each white space in the command path. - Press Return.
- Type this command in Terminal:mv ./mbr_cache ./mbr_cache-old
The mv Terminal command is safer than the rm command. Errant white space in an rm command can destroy the user's data. - Press Return.
- Quit Terminal.
- Choose Apple () menu > Restart.
The first startup after running these commands takes longer than usual as the cache is recreated. Subsequent startups will take the normal amount of time.
Hope this will help you 
Frank
Je ne comprends pas comment c'est possible. Un mois que j'étais dans la panade. Heureusement que mon PC professionnel était là, lui...
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MacBook Pro
