Post upgrade, multiple Preboots

I understand the purpose of /Volumes/Preboot but I don't exactly understand why there would be multiple for a single drive. Would this be normal or related to the beta?


lrwxr-xr-x 1 root wheel 1 Oct 10 22:16 Macintosh HD -> /

drwxr-xr-x+ 3 root wheel 96 Sep 9 14:36 Preboot

drwxr-xr-x+ 3 root wheel 96 Sep 14 11:48 Preboot 1


The Preboot should rebuild itself if I delete it, no? Would it be safe to just delete both and reboot? Other options?

Could this impact future betas if not solved first?


They seem rather similar:


2016-MBP.local:/Volumes$ du -h Preboot

4.0K Preboot/2FD45078-7F98-3212-81E5-555123456789/var/db

4.0K Preboot/2FD45078-7F98-3212-81E5-555123456789/var

8.6M Preboot/2FD45078-7F98-3212-81E5-555123456789/System/Library/Caches/com.apple.corestorage/EFILoginLocalizations

8.6M Preboot/2FD45078-7F98-3212-81E5-555123456789/System/Library/Caches/com.apple.corestorage

8.6M Preboot/2FD45078-7F98-3212-81E5-555123456789/System/Library/Caches

8.6M Preboot/2FD45078-7F98-3212-81E5-555123456789/System/Library

8.6M Preboot/2FD45078-7F98-3212-81E5-555123456789/System

8.6M Preboot/2FD45078-7F98-3212-81E5-555123456789

8.6M Preboot


2016-MBP.local:/Volumes$ du -h Preboot\ 1/

8.6M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/usr/standalone/i386/EfiLoginUI

8.6M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/usr/standalone/i386

8.6M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/usr/standalone

8.6M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/usr

276K Preboot 1//2FD45078-7F98-3212-81E5-555123456789/var/db

276K Preboot 1//2FD45078-7F98-3212-81E5-555123456789/var

8.6M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/System/Library/Caches/com.apple.corestorage/EFILoginLocalizations

9.2M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/System/Library/Caches/com.apple.corestorage

9.2M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/System/Library/Caches

9.2M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/System/Library

9.2M Preboot 1//2FD45078-7F98-3212-81E5-555123456789/System

18M Preboot 1//2FD45078-7F98-3212-81E5-555123456789

18M Preboot 1/



Build: 10.13.1 Beta (17B35a)

System:

MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)

3.3 GHz Intel Core i7

16 GB 2133 MHz LPDDR3

Intel Iris Graphics 550 1536 MB

Post upgrade, multiple Preboots
 
 
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