“Ubuntu 18.04.2 LTS _Bionic Beaver_ - Release amd64 (20190210)” 的盘片插入驱动器“/cdrom/”再按「回车」键

 1.

cd /etc/apt
sudo vim sources.list

2.

注释掉deb cdrom:开头的行.

#deb cdrom:……

apt-get update即可。

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转载自blog.csdn.net/qq_27148893/article/details/88834057