如何解决这个问题：“等待缓存锁:无法获得锁/var/lib/dpkg/锁前端。它由进程3321 (apt)持有。

Question

我试过这个：

moncef@moncef-Latitude-E7270:~$ sudo apt install tor
Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3321 (apt)
Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3321 (apt)
Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3321 (apt)
Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3321 (apt)
Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3321 (apt)
Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3321 (apt)... 5s

这是我的指挥记录：

  109  sudo apt install ubuntu-restricted-extras
  110  sudo snap install qbittorrent-arnatious
  111  exit
  112  shutdown -h now
  113  systemctl poweroff -i
  114  sudo
  115  sudo apt install nmap
  116  sudo dpkg --configure -a
  117  sudo apt install nmap
  118  nmap
  119  history
  120  sudo apt remove ubuntu-restricted-extras
  121  sudo apt-get remove ubuntu-restricted-extras
  122  sudo apt remove ubuntu-restricted-extras
  123  sudo apt install tor
  124  sudo apt-get install tor
  125  sudo dpkg --configure -a
  126  ps aux | grep -i apt
  127  shutdown -h now
  128  sudo apt install ubuntu-restricted-extras
  129  sudo apt install tor
  130  history
  131  sudo apt install ubuntu-restricted-extras
  132  history

Answer 1

在您的系统上有另一个apt实例运行PID (在本例中) 3321。如果您真的很着急，可以使用以下命令等待它完成，或者杀死它：

sudo kill 3321

如果它不起作用，那么运行以下命令：

sudo kill -9 3321

使用任何PID给出的错误，而不是3321。