Hi,
After upgrading to Catalina, i'm blessed with 3 versions of my SSD drive:
Clearly, it's the same disk (I have only 1 disk) and they are all 1TB of size. I've read that this has something to do the way the new APFS is working, but I'm sure that I can get rid of the "Data" disks somehow (or hide them).
But how?
Thanks,
Helpless dude.
About the read-only system volume in macOS Catalina - Apple Support https://support.apple.com/en-us/HT210650
You need to erase/reformat the parent drive—
From Internet Recovery/ or boot from a TM backup/ or boot from a USBinstaller to get to DiskUtility.
DiskUtility>View>Show All Devices> here you can select the parent drive, erase/reformat This will delete/erase ALL data.
then quit DiskUtility and reinstall the macOS. Restore your user from a backup.
How to reinstall macOS from macOS Recovery: https://support.apple.com/en-us/HT204904
Boot clone https://discussions.apple.com/docs/DOC-10081
How to use Time Machine to back up or restore your Mac: https://support.apple.com/en-us/HT201250
About the read-only system volume in macOS Catalina - Apple Support https://support.apple.com/en-us/HT210650
You need to erase/reformat the parent drive—
From Internet Recovery/ or boot from a TM backup/ or boot from a USBinstaller to get to DiskUtility.
DiskUtility>View>Show All Devices> here you can select the parent drive, erase/reformat This will delete/erase ALL data.
then quit DiskUtility and reinstall the macOS. Restore your user from a backup.
How to reinstall macOS from macOS Recovery: https://support.apple.com/en-us/HT204904
Boot clone https://discussions.apple.com/docs/DOC-10081
How to use Time Machine to back up or restore your Mac: https://support.apple.com/en-us/HT201250
Your Mac HD now has two volumes, created by Catalina, one is the now read only mac HD (for security reasons) and the other is the read/write Mac HD - Data which contains your User folder and other files.
Apparently, you reinstalled Catalina at which point the OS created a second Data volume. Unless you follow these steps and erase your disk, it will create another Data volume (again).
3 instances of "Macintosh HD"
