debian系统无法install

问题描述

当安装好了debian操作系统之后，使用用户登录，执行apt install xxx发现执行错误，报：
E: 无法打开锁文件 /var/lib/dpkg/lock-frontend - open (13: 权限不够)
E: 无法获取 dpkg 前端锁 (/var/lib/dpkg/lock-frontend)，请查看您是否正以 root 用户运行？

而执行sudo -i还是报错：

xxx@bogon:~$ sudo -i
[sudo] xxx 的密码：
xxx 不是 sudoers 文件。

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原因分析：

操作系统的问题

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解决方案：

su -

然后执行apt install vim

root@bogon:~# apt install vim
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  vim-runtime
Suggested packages:
  ctags vim-doc vim-scripts
The following NEW packages will be installed:
  vim vim-runtime
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/8592 kB of archives.
After this operation, 41.0 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Media change: please insert the disc labeled
 'Debian GNU/Linux 12.6.0 _Bookworm_ - Official amd64 DVD Binary-1 with firmware 20240629-10:19'
in the drive '/media/cdrom/' and press [Enter]

问题原因
你的/etc/apt/sources.list中可能包含类似条目：

deb [check-valid-until=no] cdrom:[Debian GNU/Linux 12.6.0 _Bookworm_ - Official amd64 DVD]/ bookworm main

解决方案
永久禁用光盘源

1 注释掉光盘源

sudo sed -i 's/^deb cdrom/# deb cdrom/' /etc/apt/sources.list

2 更新软件列表

sudo apt update

3 重新安装

sudo apt install xxx