I can access all contents on my external hard drive and can also create a file using "sudo touch test.txt". I can do so even without sudo, just using "touch tesssst.txt". However I can not create new files/directories when I right-click the empty space in the UI background. The options are enabled, but when I click on them I get 'Error while copying to "MyExt". The destination is read-only.'. I use the default Ubuntu version with unity.
"mount" results in
/dev/sdb2 on /mnt/MyExt type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
=> According to this it should have read-write-access
"ls -l /mnt" results in
drwxrwxrwx 1 root root 4096 Dec 20 23:22 MyExt
=> According to this everyone should be able to do anything
How is this contradiction possible and how do I fix it?
_________________ Additional Information _________________
It all started with the external hard drive's connection being severed while copying data onto it. The hard drive had trouble mounting. That is fixed now. Now I'm stuck with the problem described above. I already invested 5 hours into this and followed all sorts of attempts.
sudo mount -o remount,rw ... dosfsck ...
... just to name a few attempts. I would therefore appreciate a solution for my problem much more than some reading link or getting marked as duplicate, which it is not. (At least not to the best of my knowledge and research. Some questions with related content are not really solved and some haven't received any answers at all.)
** When I open the Disk GUI and edit the mount options of the Filesystem Type from "auto" to "ntfs-3g" (or use ntfs-config, which seems to do the same thing when I enable write-capability for external ntfs filesystems except now my drive is no longer displayed in the explorer), the "New Folder" option in the right-click-menu becomes enabled after remounting.
Seems to be caused by a bug in Nautilus (aka the 'Files' application).