Unable to run apt update

Robotics & Edge Computing Robotics - Isaac Isaac ROS
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1

I have the same issue as this forum Unable to run apt update, file has unexpected size, but seems that this one is solved almost one year ago. However, I just met this error from the first time just last week, and until now, I’m still not be able to run apt update properly and got the following error log message

Get:1 file:/var/cuda-repo-ubuntu2204-12-2-local  InRelease [1,572 B]
Get:1 file:/var/cuda-repo-ubuntu2204-12-2-local  InRelease [1,572 B]
Hit:2 https://download.docker.com/linux/ubuntu jammy InRelease                                                         
Hit:3 https://apt.foxglove.dev/studio stable InRelease                                                                 
Get:4 https://isaac.download.nvidia.com/isaac-ros/release-3 jammy InRelease [13.6 kB]                                  
Hit:5 https://dl.google.com/linux/chrome/deb stable InRelease                                                          
Get:6 https://isaac.download.nvidia.com/isaac-ros/release-3 jammy/release-3.0 amd64 Packages [25.8 kB]                 
Hit:7 http://packages.osrfoundation.org/gazebo/ubuntu-stable jammy InRelease                                           
Hit:8 http://packages.ros.org/ros2/ubuntu jammy InRelease                                                              
Hit:9 http://jp.archive.ubuntu.com/ubuntu jammy InRelease                                                              
Hit:10 http://jp.archive.ubuntu.com/ubuntu jammy-updates InRelease                        
Hit:11 http://security.ubuntu.com/ubuntu jammy-security InRelease                         
Ign:12 http://robotpkg.openrobots.org/packages/debian/pub jammy InRelease                 
Hit:13 http://jp.archive.ubuntu.com/ubuntu jammy-backports InRelease
Ign:14 https://isaac.download.nvidia.com/isaac-ros/release-3 jammy/main amd64 Packages
Get:14 https://isaac.download.nvidia.com/isaac-ros/release-3 jammy/main amd64 Packages [27.7 kB]
Err:14 https://isaac.download.nvidia.com/isaac-ros/release-3 jammy/main amd64 Packages
  File has unexpected size (14 != 27666). Mirror sync in progress? [IP: 23.62.20.57 443]
  Hashes of expected file:
   - Filesize:27666 [weak]
   - SHA256:11ff80cd12a3fdccdb463d2ca68a5cc6d8b709f8f67d5141461439bc6f310f4f
   - SHA1:71f7956fa65173506732a2c8bd7db8c94e1f3b07 [weak]
   - MD5Sum:a56929479ae5977d2cac84d35f464cc4 [weak]
  Release file created at: Mon, 12 May 2025 18:10:47 +0000
Hit:15 http://robotpkg.openrobots.org/packages/debian/pub jammy Release
Fetched 13.6 kB in 1s (15.2 kB/s)
Reading package lists... Done
E: Failed to fetch https://isaac.download.nvidia.com/isaac-ros/release-3/dists/jammy/main/binary-amd64/Packages.bz2  File has unexpected size (14 != 27666). Mirror sync in progress? [IP: 23.62.20.57 443]
   Hashes of expected file:
    - Filesize:27666 [weak]
    - SHA256:11ff80cd12a3fdccdb463d2ca68a5cc6d8b709f8f67d5141461439bc6f310f4f
    - SHA1:71f7956fa65173506732a2c8bd7db8c94e1f3b07 [weak]
    - MD5Sum:a56929479ae5977d2cac84d35f464cc4 [weak]
   Release file created at: Mon, 12 May 2025 18:10:47 +0000
E: Some index files failed to download. They have been ignored, or old ones used instead.

Im using Ubuntu 22.04 with ros2 humble installation

2

Hi @TharitSinsunthorn

I just tried it on my machine and didn’t encounter this bug.
Can you please try to clean the apt cache?

sudo rm -rf /var/lib/apt/lists/*
sudo apt update
3

Hi @Raffaello Thank you for your support, I’m not sure if I did something wrong or not, so previously I have a waring related to keyrings of the isaacros

W: https://isaac.download.nvidia.com/isaac-ros/release-3/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.

So I follow someone who also had the same issue like this

So I ran the command sudo apt-key export <key> | sudo gpg --dearmour -o /usr/share/keyrings/isaac-ros.gpg
Then put this line

deb [arch=amd64 signed-by=/usr/share/keyrings/isaac-ros.gpg] https://isaac.download.nvidia.com/isaac-ros/release-3 jammy main

inside the etc/apt/source.list.d/nvidia-isaac-ros.list.

I did this long time ago before, and has no problem until the last week.

I tried to follow your suggestion, but it’s still generate the same error. So once I tried comment out the line in nvidia-isaac-ros.list, I can run the apt update

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