The Problem
When you run sudo apt update, you might see an error message like this:
This means your Ubuntu system is trying to download packages from a mirror server (in this case, the German mirror de.archive.ubuntu.com) that is temporarily unavailable or slow.
Why This Happens
Ubuntu uses regional mirror servers to deliver software packages quickly to users in different parts of the world. When your region's mirror experiences problems, your system can't update. By switching to the official global mirror, you ensure reliable updates.
Step-by-Step Solution
Step 1: Open the Sources Configuration File
Open your terminal and type:
sudo nano /etc/apt/sources.list.d/ubuntu.sources
Step 2: Find and Replace the Mirror Address
Inside the editor:
- Press
Ctrl+H(this opens the Find and Replace dialog) - In the "Search:" field, type:
de.archive.ubuntu.com - Press
Enter - In the "Replace with:" field, type:
archive.ubuntu.com - Press
Ato replace all occurrences
Step 3: Save Your Changes
- Press
Ctrl+X - Press
Y(confirm you want to save) - Press
Enter(confirm the filename)
Step 4: Test the Fix
sudo apt update
Success looks like this:
Hit:1 http://archive.ubuntu.com/ubuntu noble InRelease
Hit:2 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:3 https://cloud.r-project.org/bin/linux/ubuntu noble-cran40/ InRelease
[... more lines ...]
Reading package lists... Done
All packages are up to date.
No errors or warnings! Your system is now fixed.
Step 5 (Optional): Update All Packages
To ensure your entire system is up to date, run:
sudo apt upgrade
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