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Old 09-17-2013, 04:04 PM   #1
AmazingTrans
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Question dd, chmod usb external cause "Read-only file system"


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?
 
Old 09-17-2013, 04:27 PM   #2
suicidaleggroll
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What is the dd command you're trying to use?
 
Old 09-17-2013, 04:34 PM   #3
AmazingTrans
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I am using 2.6.20-15-generic xbuntu
and my Ext. USB drive is NTFS. Could that be the main problem?
 
Old 09-17-2013, 04:35 PM   #4
AmazingTrans
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dd if=/dev/sdb3 of=/mnt/usb/test.img conv=noerror,notrunc
 
Old 09-17-2013, 04:43 PM   #5
suicidaleggroll
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It's probably because it's NTFS. Do you have the ntfs-3g package installed?
Code:
apt-get install ntfs-3g
 
  


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