I take out a USB drive with FAT partition. Gnome Files can mount without issues. Copy files out OK.
When trying to write something to the drive, Gnome Files just give no response, and file not copied.
When using terminal, I got:
cp: cannot create regular file '/run/media/fcc/openwrt-ipq807x-generic-dynalink_dl-wrx36-initramfs-uImage.itb': Permission denied
What should I check to find out why there is a permission issue?