Debian/Ubuntu - How to restore /var/cache/apt structure after deleting it?
Solution 1:
You need two things there:
sudo mkdir -p /var/cache/apt/archives/partial
sudo touch /var/cache/apt/archives/lock
sudo chmod 640 /var/cache/apt/archives/lock
Removing this directory manually is a bad idea generally. To clean archives cleanly, use:
sudo apt-get clean
Solution 2:
For fresh APT versions, full solution looks like:
sudo mkdir -m 0700 /var/cache/apt/archives/partial
sudo chown _apt:root /var/cache/apt/archives/partial