TX2升级L4T 27.1至28.1后无法安装v4l-utils及打开软件更新

Hey there, let’s work through the two problems you’re hitting after upgrading L4T from 27.1 to 28.1 on your TX2. I’ve run into similar quirks with Jetson upgrades before, so here’s a step-by-step breakdown for each issue:

1. Can’t Open Software & Updates #

First, let’s get to the root of why the GUI tool is failing by launching it from the terminal—this will show us the exact error message to troubleshoot:

• Open a terminal and run:

  software-properties-gtk
  

Common Fixes Based on Typical Errors #

Case 1: Missing Dependencies or Broken Packages

If the terminal complains about missing libraries or broken packages, repair your system’s package state with these commands:

sudo apt-get update --fix-missing
sudo apt-get install -f

Once done, try launching software-properties-gtk again.

Case 2: Corrupted Source Configuration Files

Upgrade processes sometimes mess up apt source files. Let’s reset them safely:

1. Create a backup folder for your old sources:

   mkdir ~/tx2-source-backups
   sudo mv /etc/apt/sources.list.d/* ~/tx2-source-backups/
   

2. Edit the main sources.list file to use Ubuntu 18.04 (Bionic) arm64-compatible sources (since L4T 28.1 is based on Ubuntu 18.04):

   sudo nano /etc/apt/sources.list
   

   Replace the existing content with these lines:

   deb http://ports.ubuntu.com/ubuntu-ports/ bionic main restricted universe multiverse
   deb http://ports.ubuntu.com/ubuntu-ports/ bionic-updates main restricted universe multiverse
   deb http://ports.ubuntu.com/ubuntu-ports/ bionic-backports main restricted universe multiverse
   deb http://ports.ubuntu.com/ubuntu-ports/ bionic-security main restricted universe multiverse
   

3. Save and exit nano (Ctrl+O, Enter, Ctrl+X), then run sudo apt-get update. Now try launching Software & Updates again.

2. "E: Unable to locate package v4l-utils" Error #

This usually stems from misconfigured apt sources that don’t support the TX2’s arm64 architecture. Here’s how to resolve it:

Step 1: Verify System Architecture #

First confirm your TX2 is using the correct arm64 architecture:

dpkg --print-architecture

You should see arm64 as the output. If not, there’s a deeper architecture setup issue, but this is rare for standard TX2 upgrades.

Step 2: Ensure Sources Support Arm64 #

Make sure your sources.list uses the Ubuntu ports repository (we already set this up in the first issue fix). Run sudo apt-get update to refresh the package lists.

Step 3: Try Installing Again #

Now run the install command once more:

sudo apt-get install v4l-utils

If it still fails, you can manually install the package:

1. Grab the arm64 version of the v4l-utils deb package from Ubuntu’s official software repository (look for the Bionic release).
2. Install it with:

   sudo dpkg -i path/to/v4l-utils_*.deb
   

3. Fix any remaining dependencies:

   sudo apt-get install -f
   

内容的提问来源于stack exchange，提问作者jc Jang