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Bootcamp SSD (external) not in Startvolumes anymore after Catalina update

Hello,


my external SSD (thunderbold) is not in the Startvolumes (where you can choose which system you want to boot from next) anymore after the update to Catalina.


Its GUID formated and running normal when I press ALT in the Bootprocess and choose Bootcamp in the Bootmenu. But its not in the System/Startvolumes Menu.


How can I fix that?


Thank you!

Windows, Windows 10

Posted on Dec 31, 2019 5:11 AM

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Question marked as Top-ranking reply

Posted on Dec 31, 2019 6:29 AM

Catalina has 'Full Disk Access' which needs to be enabled. See Mac OS Catalina doesn't see Boot Camp… - Apple Community for reference.

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4 replies

Dec 31, 2019 5:26 AM in response to markusfrombremen

Here is my Disk Info of the external SSD:

Markuss-iMac:Volumes markusplecher$ diskutil info BOOTCAMP


   Device Identifier:         disk2s2


   Device Node:               /dev/disk2s2


   Whole:                     No


   Part of Whole:             disk2




   Volume Name:               BOOTCAMP


   Mounted:                   Yes


   Mount Point:               /Volumes/BOOTCAMP




   Partition Type:            Microsoft Basic Data


   File System Personality:   NTFS


   Type (Bundle):             ntfs


   Name (User Visible):       Windows NT File System (NTFS)




   OS Can Be Installed:       No


   Media Type:                Generic


   Protocol:                  SATA


   SMART Status:              Verified


   Volume UUID:               A0D9EFE6-C619-4050-8A4B-E1A900250EDD


   Disk / Partition UUID:     9C045D16-0B02-48AA-ADCE-5B450823F323


   Partition Offset:          210763776 Bytes (411648 512-Byte-Device-Blocks)




   Disk Size:                 510.0 GB (509963551232 Bytes) (exactly 996022561 512-Byte-Units)


   Device Block Size:         512 Bytes




   Volume Total Space:        510.0 GB (509963550720 Bytes) (exactly 996022560 512-Byte-Units)


   Volume Used Space:         400.1 GB (400074252288 Bytes) (exactly 781395024 512-Byte-Units) (78.5%)


   Volume Free Space:         109.9 GB (109889298432 Bytes) (exactly 214627536 512-Byte-Units) (21.5%)


   Allocation Block Size:     4096 Bytes




   Read-Only Media:           No


   Read-Only Volume:          Yes




   Device Location:           External


   Removable Media:           Fixed




   Solid State:               Yes


   Hardware AES Support:      No

Bootcamp SSD (external) not in Startvolumes anymore after Catalina update

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