If I have a partition: /dev/sda3 how do I take ownership so that I can create folders?

I tried:

sudo chown -R chris:chris /dev/sda3 sudo chmod -R 755 /dev/sda3

but when I right click within the folder 'Create new folder' is still greyed out?

Thanks for any assistance.


You can not read/write directly to block devices--/dev/sd? devices.

You need to format and mount partitions.

Ubuntu automounts most partions under the /media folder with a GUID mount point.


  • I have mounted the partition already. I want to copy data into the partition. – Chris Dec 8 '13 at 21:57
  • What is the mount point? Type mount from your command prompt, and if you have mounted the partition, it will say something like /dev/sda5 on /some/other/folder type ext4 (rw,errors=remount-ro) The /some/other/folder is where you need to change the permissions. – David Dec 8 '13 at 22:04
  • /dev/sda3 on /media/0c997a25-85ee-4190-8d14-daef8e29dea9 type ext2 (rw,nosuid,nodev,uhelper=udisks) – Chris Dec 8 '13 at 22:06
  • So i should try: Sudo chown -R chris:chris /media/0c997a25-85ee-4190-8d14-daef8e29dea9 sudo chmod -R 755 /media/0c997a25-85ee-4190-8d14-daef8e29dea9? – Chris Dec 8 '13 at 22:07
  • You need to access the partition from /media/0c997a25-85ee-4190-8d14-daef8e29dea9 It might appear as something nicer on your desktop. – David Dec 8 '13 at 22:09

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