![]() In order to enable permissions settings, you need a “User Mapping File” or mount the volume with permissions option in the first place. That means it is possible to use permissions on NTFS. If you’re performing operations on a NTFS formatted system, you should know that NTFS is also a POSIX-compatible filesystem. sudo mount -t ntfs -o rw,auto,user,fmask=0022,dmask=0000 /dev/whatever /mnt/whatever Wrong filesystemĬontrary to what most people believe, NTFS is a POSIX-compatible filesystem, and it is possible to use permissions on NTFS. Remember to replace whatever in the command with details suitable to your system. ![]() Or simpler, you can re-mount the volume with ‘755’ on files and ‘777’ on directories, you can use something like below. In this case, to inspect the current mounted volumes, run the following command : :~$ grep '/dev' /proc/mounts Code language: JavaScript ( javascript ) Sometimes, permissions on a single file is determined by the mount options of the whole partition (which in turn, means you cannot change it via chmod). ~/tmp % Code language: CSS ( css ) Insufficient options In order to remove immutable attribute, run sudo chattr -i filename (the -i stands for minus immutable) user ~/tmp % sudo chattr -i immutable ~/tmp % sudo chown user:user the_fileĬhown: changing ownership of 'immutable': Operation not permitted Code language: CSS ( css ) password for user: ~/tmp % sudo chattr +i the_file In order to verify if this is exactly the problematic attribute, user ~/tmp % touch the_file In the example below, we create a file with the immutable flag set using chattr +i, named the_file and tries to chown it only to see “chown operation not permitted” error message. ![]() In this situation, the file has the immutable flag set in its extended attributes. This is by far the most common cause of the “chown operation not permitted” error message.
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