无法应用 ubuntu 安全更新

Question

我通过 ssh 进入我的 ubuntu 服务器并看到以下信息：

215 updates can be installed immediately.
38 of these updates are security updates.
To see these additional updates run: apt list --upgradable


2 updates could not be installed automatically. For more details,
see /var/log/unattended-upgrades/unattended-upgrades.log

我运行sudo unattended-upgrade安装安全更新但出现以下错误：

Cache lock can not be acquired, exiting

有什么想法吗？我该如何解决？

Answer 1

这个问题有点老了，但是对于像我一样来到这里的人来说，这就是我所用的方法。

# See actual lock files:
sudo ls -l /var/lib/dpkg/lock /var/lib/apt/lists/lock /var/cache/apt/archives/lock

# Check if something is really running:
ps -ef | grep -v grep | egrep 'apt|dpkg'

# If so, wait for it (if very very long, maybe finally kill it).

# Remove lock files:
sudo rm /var/lib/dpkg/lock /var/lib/apt/lists/lock /var/cache/apt/archives/lock

# Make sure packages are all ok:
sudo dpkg --configure -a

现在您应该能够运行无人值守升级。

Answer 2

使用：

ps -ef | grep -v grep | egrep 'apt|dpkg'

检查该apt命令是否正在其他窗口运行。