How to fix E: Internal Error, No file name for package-name:amd64 in APT

The most common fix is to clean out the package list cache. Open a terminal and run:

sudo rm -rf /var/lib/apt/lists/*
sudo mkdir -p /var/lib/apt/lists/partial
sudo apt-get update

This removes all cached package metadata and forces apt to download fresh lists from your configured repositories. The mkdir command recreates the partial directory where apt stores incomplete downloads.

After clearing the cache, configure any packages that may be left in an incomplete state:

sudo dpkg --configure -a

This command attempts to finish configuring any packages that were interrupted. If you see errors about specific packages, note them for the next step.

If the error persists and you know which package is causing the issue, completely remove and reinstall it:

# Remove the package and its configuration files
sudo apt-get purge package-name

# Update package lists again
sudo apt-get update

# Reinstall the package fresh
sudo apt-get install package-name

Replace "package-name" with the actual package causing the error (e.g., "linux-firmware" or "libc6").

If you still have broken dependencies, fix them with:

sudo apt-get -f install

The -f flag tells apt to attempt to correct system with broken dependencies. After this, try your original command again:

sudo apt-get update
sudo apt-get upgrade

This error can also occur if your system is running out of disk space. Check available space:

df -h

If you're low on disk space, delete unnecessary files or logs. Additionally, verify your filesystem is not corrupted:

sudo fsck -n /dev/sdXX

Replace /dev/sdXX with your root partition (found from df -h output). The -n flag runs a read-only check without making changes.