ubuntu下误删除/var/lib/dpkg解决办法

http://blog.chinaunix.net/uid-24517549-id-4234052.html

sudo mkdir -p /var/lib/dpkg/{alternatives,info,parts,triggers,updates} 

Recover some backups:

sudo cp /var/backups/dpkg.status.0 /var/lib/dpkg/status 

Now, lets see if your dpkg is working (start praying):

apt-get download dpkg
sudo dpkg -i dpkg*.deb 

If everything is "ok" then repair your base files too:

apt-get download base-files
sudo dpkg -i base-files*.deb 

Now try to update your package list, etc.:

dpkg --audit
sudo apt-get update
sudo apt-get check