Hi there, i am noob in linux here. I am trying to dd one usb drive to another usb drive and I did that, i get Read-only file system.
I did a list -l on the target usb drive, and I got this:
dr-x------ 1 root root 4096 2013-09-16 17:08 Foldertmp

After seeing that, i guess it is only at read only mode?
So i did chmod 666 Foldertmp
and it says: chmod: changing permissions of 'KWH': Read-only file system

Any ideas? I did tried plugging the external usb into windows pc and remove the read-only check mark, and I still get read-only file system on the external usb.

Any ideas?

What is the dd command you're trying to use?

I am using 2.6.20-15-generic xbuntu
and my Ext. USB drive is NTFS. Could that be the main problem?

dd if=/dev/sdb3 of=/mnt/usb/test.img conv=noerror,notrunc

It's probably because it's NTFS. Do you have the ntfs-3g package installed?