Answers for "Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 21991 (unattended-upgr)... 27s"

7

Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)

Method 1
ps aux | grep -i apt
sudo kill -9 <process_id>

Method 2

sudo lsof /var/lib/dpkg/lock
sudo lsof /var/lib/apt/lists/lock
sudo lsof /var/cache/apt/archives/lock

sudo kill -9 <process_id>

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

sudo dpkg --configure -a

sudo apt update
Posted by: Guest on September-03-2020
0

E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)

#You can delete the lock file with the following command.
sudo rm /var/lib/apt/lists/lock
#You may also need to delete the lock file in the cache directory
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock
Posted by: Guest on June-22-2021

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