When I mount a disk to a folder owned by me, the ownership changes to root. Why is that so?
Trying to change the ownership back to my user isn’t possible:
chown: changing ownership of '/share/': Operation not permitted
Why not?
How to make the disk writable by my user? Not even
chmod 777 /share
works. No error, but no effect either (it stays at 755).
The disk in question is an actual disk, not a USB Stick. It’s formatted exfat.
The mount command has the uid= and -gid option for this case.
For example
sudo mount /dev/xxx /share -ouid=1000,gid=1000
assuming your uid is 1000 as can be seen when running the id command.
You can also use the Files app to mount the file system, and it will set the correct owner for you automatically. The mount point would be /run/media/username/fslabel where username is your login name and fslabel is the label name you gave to the file system.
Added filesystem, mount, udisks2