Permissions locked to read only on NTFS partition

Yurlungur · 07-04-2011, 11:04 PM

Hi there. I'm pretty new to Linux. Though I've used it for a little bit, I barely know any shell commands. I recently migrated from Mint to Fedora. Installation went fine and I thought I was doing great until I tried to copy something onto one of my ntfs partitions (I got them automounted through changing fstab). Now I can't change the permissions with sudo chmod... it says I can, but nothing changes. And, while the folders are listed as allowing rw for the user group I set up, I can't actually change anything. I'm guessing I've done something wrong with my fstab file. Does anyone have any ideas?

My fstab file is:

Code:

UUID=3ba9753f-07b2-43e5-b5cc-571c19ad4620 /                       ext4    defaults,user_xattr        1 1
/dev/mapper/nvidia_fcficeibp6 swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
/dev/mapper/nvidia_fcficeibp3 /windows          ntfs-3g rw,user,dev,auto,suid,exec,async,gid=users,umask=002 0 0
/dev/mapper/nvidia_fcficeibp5 /storage          ntfs-3g rw,user,dev,auto,suid,exec,async,gid=users,umask=002 0 0

I should probably note that I'm using NVIDIA fake RAID 0, which is why my device locations are all /dev/mapper/nvidia_fcficeibp#

The command I have tried to change permissions is:

Code:

sudo chmod a+rw -R /storage

Thanks in advance for your help!

yancek · 07-04-2011, 11:23 PM

sudo isn't used by default in Fedora. Use "su -" (without quotes), enter your root password and then your command. If you want to use sudo, check this site. Haven't done this myself so I don't know if it will work:

http://www.liberiangeek.net/2011/01/...a-14-laughlin/

divyashree · 07-04-2011, 11:29 PM

Try to remount the partition with rw mode as root user:

Quote:

mount -o remount,rw /storage

Yurlungur · 07-05-2011, 12:16 AM

Wow, that was fast!

@yancek: Got it. Thanks for the tip. This doesn't seem to fix it... but its good to find out something else I was doing wrong.

@divyashree: the response I get is:

Code:

Remounting is not supported at present. You have to umount volume and then mount it once again.

so I tried

Code:

su
umount /storage
mount /dev
mount -o,rw /dev/mapper/nvidia_fcficeibp5 /storage

it works! Thanks both of you for your help! Will it work on reboot? Or do I need to setup a boot command or change the fstab file or something else?

chrism01 · 07-05-2011, 12:36 AM

Depends what you mean exactly, but if you want the current mount mapping to 'stick', then yes, add a line to /etc/fstab (or amend the current one if it exists).

Yurlungur · 07-05-2011, 01:18 AM

@chrism0: but what line? I've already got the rw option in there for that mapping (see my first post). Why didn't that work before?