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I have a new 3TB internal hard drive and after writing some data to it I completely zero'd the drive using DD. I then created a partition table (GPT) in Gparted and created an ext4 partition. All went through fine, but the permissions in the drive properties are all set to root and I cant write files to the drive.

Ok, so chown should work right? I tried:

sudo chown -R user:user /dev/sdb1

with user being my username, but still no difference.

I tried chmod'ing just for good measure:

sudo chmod -R 755 /dev/sdb1

still nothing.

Any ideas on what I'm missing?

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2 Answers 2

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The dev/sdb1 is the device file. But the mount point for the hard disk should be somewhere else. For e.g. under /media/<user>/ or /mnt/. Try in the mount point rather than on the device file itself.

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Instead of setting the ownership of the device, you need to set the ownership/permissions of the mount point.

Supposing you put the mount point at /data:

sudo chown user:user /data
sudo chmod 777 /data

This will set the ownership to that user and give everyone permissions to read, write, and execute.

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  • thanks Theo, it worked, but Kenpachi just beat you to it hence why he got the answered marker :-)
    – user409554
    Commented Jan 28, 2015 at 11:27

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