I have External HDD 1TB ex. used with MAC OS mojave. Now I use Ubuntu 20.04 as my primary OS. When I plug it HDD to ubuntu it's always read only.
I was try this post still no lucky.
this is information about environment:
fdisk -l /dev/sdb
Disk model: Mobile
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2C77B322-8C16-401C-9466-C93C50A3AF0A
Device Start End Sectors Size Type
/dev/sdb1 40 409639 409600 200M EFI System
/dev/sdb2 409640 1953195991 1952786352 931,2G Apple HFS/HFS+
/dev/sdb3 1953196032 1953456127 260096 127M Microsoft basic data