I have two disks that I moved over from an older Windows system, formatted NTFS. When I boot and log in, they're mounted in the /media/mark directory which I'm given to believe means they were identified as removable, even though they aren't. The more mystifying bit is that I will lose access to those disks with no warning while my system is sitting idle.
I haven't seen anything in the Disks utility that would help me figure it out.
As asked, the contents of /etc/fstab minus some boilerplate comments at the top.
# / was on /dev/nvme0n1p2 during installation
UUID=1b8c6528-3b99-4ae9-bae1-9868aeb04b20 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=5E6C-EC6D /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
I am currently experimenting with adding the disks to the file.
