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Permissions to my portable hard drive on Arch is read-only and it seems I can't change it- when I change it from the GUI it takes no effect. So, how can I change it through the terminal?

Is there some config file relating to accessing hard drives? I'm asking because there's no problem such problem with SD cards. I also can't seem to 'Safely Remove Harddrive' although no processes are going on.

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What filesystem is on your external drive? – pdo May 2 '11 at 16:17
please include the line of the mounted drive from cat /proc/mounts also this is unlikely to have anything at all to do with "arch" specifically – xenoterracide May 2 '11 at 21:24
@pdo- sorry for the really late reply(i was AFK for a really long time) but its NTFS – Samrat Man Singh May 17 '11 at 16:01

First, in order to work with NTFS (a proprietary file system) you need to install ntfs-3g:

# pacman -S ntfs-3g

There is a page on the the Arch Wiki that will step you through configuration options, such as automounting and user access...

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