I have reading a lot about this issue but I didn't find a solution still, even in Linux Mint 19.2.
I have external hard drives (formatted as hfs+) to be shared between a Mac laptop and another Linux Mint laptop.
Those external drives were formatted in the past at the Mac laptop so the user owner were the one at Mac's. When I moved folders to the external drives from the Linux Mint at some point it become read-only drive. It it super annoying.
I tryed to change the owner of the hard drives at Mac, but as the linux user wasn't created in Mac it only allows me to provide full permission to everyone with
chmod 777 -R /devicepath
.Yesterday I formatted those 2 of the devices to hfs+ at Linux Mint laptop with Gparted, to get the original owner of the drives in Linux Mint, but moving data from another external drives still as Mac's owner to the one just formatted in Lunux, it become again read-only device.
I swear it makes no sense for me, the onwer of the drive is the Linux user, so it gets full permissions but whatever I do I still get the only-read message.
I tryed the
sudo dosfsck -a
command to clean the filesystem of the external drive, and ever I deleted the ~/.local/shared/gvfs-metadata folder with no success.Really it makes no sense, and I believe the issue is deeper than nemo app because I even can't create any file at the external drive with a touch.
I don't understand how this big and stopper issue is still not solved at Linux Mint, because this is something not only related to hfs+ format, I believe happens whatever the format is.