با دستور apt-get هم نتونستم کاری بکنم :
sudo apt-get install dpkg
[sudo] password for ...:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
linux-headers-2.6.32-21
Use 'apt-get autoremove' to remove them.
The following packages will be upgraded:
dpkg
1 upgraded, 0 newly installed, 0 to remove and 511 not upgraded.
Need to get 0B/2,191kB of archives.
After this operation, 176kB disk space will be freed.
Could not exec dpkg!
E: Sub-process /usr/bin/dpkg returned an error code (100)