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Error shown on terminal:

sudo: unable to open /var/lib/sudo/jianyue/0: Read-only file system
W: Not using locking for read only lock file /var/lib/dpkg/lock
E: Unable to write to /var/cache/apt/
E: The package lists or status file could not be parsed or opened.

if you need more infos, please help.

Raja G
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owl
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  • Please provide the output of the following command: mount | grep "^/dev". Just to check if your filesystem is mounted read-only – Salem Nov 04 '12 at 15:44
  • I have pasted the command you have told me to perform. Here is the result : /dev/sda6 on / type ext4 (rw,errors=remount-ro) – owl Nov 04 '12 at 15:46
  • Try this: cat /proc/mounts. And if you can please use http://paste.ubuntu.com/ to post output results. – Salem Nov 04 '12 at 16:09
  • Firstly, thank you for your reply. I have done what you told me to do. Here is the link : http://paste.ubuntu.com/1334320/ . – owl Nov 05 '12 at 09:18
  • Your Ubuntu was installed in Windows (using Wubi)? – Salem Nov 06 '12 at 13:41
  • No, my ubuntu is not installed with windows, I dual boot it. I didn't use Wubi. – owl Nov 06 '12 at 13:48

1 Answers1

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try this in your terminal 

sudo rm -rf /var/lib/dpkg/lock
Raja G
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  • Hello. Thanks for your reply. Unfortunately, I got this error : sudo: unable to open /var/lib/sudo/jianyue/0: Read-only file system rm: cannot remove `/var/lib/dpkg/lock': Read-only file system after I ran the command. – owl Nov 04 '12 at 15:47