E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
ps -A | grep apt
sudo kill -9 processnumber
sudo rm /var/lib/dpkg/lock
sudo rm /var/lib/dpkg/lock-frontend
E: Could not get lock /var/cache/apt/archives/lock - open (11: Resource temporarily unavailable)
E: Unable to lock directory /var/cache/apt/archives/
sudo killall apt-get
sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock
Ubuntu-突然无法联网，且右上方没有网络标志
sudo service network-manager stop
sudo rm /var/lib/NetworkManager/NetworkManager.state
sudo service network-manager start
修改时区
https://juejin.cn/post/6844904163713761294
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