I am trying to change the permission of a file to 444 (read-only).
This directory resides in a NTFS drive. All files in this drive seem to be owned by root.
This is the present permissions for the directory.
drwxrwxrwx 1 root root 0 Jul 23 11:41 xxx_directory
I've tried sudo bash and then execute chmod 444 xxx_directory to no avail.
The expected outcome was dr--r--r-- for xxx_directory.
Thoughts? Thank you.
The directories need at least R-X
First, create a mount point in a terminal using 'mkdir'. Then, type the following line to mount the partition with options 'permissions':
sudo mount /dev/sdXN -t ntfs-3g -o permissions [Mount point]
Example:
sudo mount /dev/sdb1 -t ntfs-3g -o permissions /media/Data/
Then, you will be able to edit the permissions of the files on the NTFS partition with 'chmod' and 'chown' !
Check thia reference LINUX - MOUNT NTFS PARTITION WITH PERMISSIONS
You should at least require the x permission for directories otherwise you won't be able to cd into it.
You can specify the permissions (via fmask and dmask) while mounting the partition ( or in fstab if an entry is there).
An example of an fstab entry :
#mounting by UUID
UUID=<partition UUID> /mount/point ntfs-3g user,uid=1000,gid=1000,dmask=0022,fmask=0033
This would give all directories in that partition drwxr-xr-x parmissions. Any file created will get .rw-r--r-- permissions. And the ownership would be by the user with uid 1000 so he can change permissions (without sudo)