sudo apt-get update
E: Archives directory /var/cache/apt/archives/partial is missing. - Acquire (2: No such file or directory)
E: List of files can't be created as '/var/cache/apt/' is not a directory
E: List of files can't be created as '/var/cache/apt/' is not a directory
root@zchat:~/dpkg-1.16.1.2ubuntu7.2#