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# /etc/fstab
UUID=D254B*****B5B*** /home/username/c ntfs defaults,fmask=113,dmask=002,    uid=username,gid=username 0 2

# uname -a
Linux 00544 3.2.0-37-generic-pae #58-Ubuntu SMP Thu Jan 24 15:51:02 UTC 2013 i686 i686 i386 GNU/Linux

if 'test.tmp' is a file in windows c partition and I mount C partition in Linux; The commond 'sudo chmod u+x test.tmp' is invalid ,why? and How ? many thanks! ^_^

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migrated from Mar 5 '13 at 0:27

This question came from our site for professional and enthusiast programmers.

If you mount an ntfs-partition, you cannot use chmod, it is determined by the partition's mount options. No way around that. – Wrikken Mar 4 '13 at 22:59
@ruakh I mean the chmod commond don't cannot +x to a file. – Jinxiao Mar 4 '13 at 23:02
@Wrikken so... I know, thanks. – Jinxiao Mar 4 '13 at 23:03

It's invalid because the underlying file-system has no notion of these POSIX things. The OS "pretends" (using the mount options) that they exist. But they don't.

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thanks very much^_^ – Jinxiao Mar 4 '13 at 23:04

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