Ubuntu 22.04执行sudo apt-get update时遇Release file not found错误求助

问题现象 #

执行sudo apt-get update时出现以下错误：

ICON_lab) randychen@randychen-Delta-15-A5EFK:~/projects$ sudo apt-get update
Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Get:2 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease [114 kB]     
Ign:3 http://packages.ros.org/ros/ubuntu jammy InRelease                       
Err:4 http://packages.ros.org/ros/ubuntu jammy Release                         
  404  Not Found [IP: 140.211.166.134 80]
Get:5 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease [99.8 kB]  
Get:6 http://www.deb-multimedia.org jessie InRelease [15.4 kB]                 
Hit:7 http://archive.ubuntu.com/ubuntu jammy InRelease                         
Hit:8 http://security.ubuntu.com/ubuntu jammy-security InRelease               
Get:9 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 DEP-11 Metadata [95.1 kB]
Get:10 http://us.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 DEP-11 Metadata [257 kB]
Get:11 http://us.archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 DEP-11 Metadata [940 B]
Get:13 http://us.archive.ubuntu.com/ubuntu jammy-backports/universe amd64 DEP-11 Metadata [11.4 kB]
Ign:6 http://www.deb-multimedia.org jessie InRelease                           
Hit:12 https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease
Reading package lists... Done
E: The repository 'http://packages.ros.org/ros/ubuntu jammy 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.
W: GPG error: http://www.deb-multimedia.org jessie InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5C808C2B65558117
E: Release file for http://www.deb-multimedia.org/dists/jessie/InRelease is expired (invalid since 388d 20h 52min 20s). Updates for this repository will not be applied.
W: https://packagecloud.io/slacktechnologies/slack/debian/dists/jessie/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.

错误分析与解决方案 #

1. ROS源404错误 #

ROS的ros/ubuntu仓库没有适配Ubuntu22.04（Jammy）的Release文件，因为ROS 1不支持该版本，ROS 2对应Jammy的源路径不同。

解决方法：

• 删除无效的ROS源配置：

  sudo rm /etc/apt/sources.list.d/ros*.list
  

• 如果需要安装ROS，针对Ubuntu22.04应安装ROS 2 Humble，添加对应源（可选操作）：

  sudo apt install curl gnupg lsb-release
  sudo curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -o /usr/share/keyrings/ros-archive-keyring.gpg
  echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] http://packages.ros.org/ros2/ubuntu $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null
  

2. deb-multimedia源过期+缺少密钥 #

你添加的是Debian Jessie版本的源，该版本早已停止维护，完全不兼容Ubuntu22.04。

解决方法：

• 删除该源配置：

  sudo rm /etc/apt/sources.list.d/deb-multimedia*.list
  

• 如需第三方多媒体源，建议替换为兼容Ubuntu22.04的官方或可信第三方源（非官方源存在安全风险，需自行确认）。

3. Slack源密钥存储在legacy位置 #

apt-key已被弃用，Slack的密钥存储在旧的trusted.gpg中，需要迁移到新的密钥存储目录。

解决方法：

• 导出Slack密钥并迁移到/usr/share/keyrings：

  sudo apt-key export 4D08F937 | sudo gpg --dearmour -o /usr/share/keyrings/slack-keyring.gpg
  

• 修改Slack源配置文件，更新密钥路径：

  sudo nano /etc/apt/sources.list.d/slacktechnologies_slack.list
  

  将原内容修改为指向新密钥文件的格式，最终内容应为：

  deb [arch=amd64 signed-by=/usr/share/keyrings/slack-keyring.gpg] https://packagecloud.io/slacktechnologies/slack/debian jessie main
  

  按Ctrl+O保存，Ctrl+X退出编辑器。

验证修复效果 #

执行以下命令确认问题已解决：

sudo apt-get update

内容的提问来源于stack exchange，提问作者Randy Chen