我在apt update之后收到的输出：
Ign:1 cdrom://[Debian GNU/Linux 4.5 _Parrot_ - Official Snapshot amd64 LIVE/INSTALL Binary 20190127-02:06] parrot InRelease
Err:2 cdrom://[Debian GNU/Linux 4.5 _Parrot_ - Official Snapshot amd64 LIVE/INSTALL Binary 20190127-02:06] parrot Release
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Get:3 http://deb.parrotsec.org/parrot parrot InRelease [14.6 kB]
Reading package lists... Done
E: The repository 'cdrom://[Debian GNU/Linux 4.5 _Parrot_ - Official Snapshot amd64 LIVE/INSTALL Binary 20190127-02:06] parrot Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
如何克服这个？
是的，您可以从源中删除CD-ROM（或原始安装媒体）。list
使用以下命令编辑sources.list文件：
sudo nano /etc/apt/sources.list
（注释是哈希（#） - 因此在deb cdrom: ...行的开头中弹出其中一个）
然后尝试sudo apt update
请查看有关如何升级系统的文档。
sudo apt-get更新已经消失了！
始终使用
sudo parrot-upgrade
或
sudo apt update
sudo apt full-upgrade