[linux] ubuntu Error: Waiting for cache lock

환경

OS : Ubuntu 20.04 LTS

 

error

'Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend’

solution

sudo rm /var/lib/apt/lists/lock 
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock*

# 이후 패키지 업데이트
sudo dpkg --configure -a
sudo apt update