Recently, FunOS users may encounter errors when running sudo apt update, especially related to Launchpad PPAs (Personal Package Archives). These errors are caused by an ongoing disruption to Ubuntu infrastructure, which makes some PPA servers temporarily inaccessible.

This guide provides a simple temporary solution by disabling Launchpad PPAs, allowing you to update your system without errors. Once the issue is resolved, you can easily re-enable them.

Why This Happens

FunOS is based on Ubuntu, and many third-party applications are distributed through Launchpad PPAs. When these servers are unreachable, apt cannot download repository information, resulting in errors or warnings.

Disabling the affected PPAs prevents apt from attempting to contact those servers, allowing the update process to complete normally.

Step 1: Open the Repository Folder

First, open a Terminal.

Then run the following command:

sudo pcmanfm /etc/apt/sources.list.d

This will open PCManFM and display all repository files stored on your system.

Step 2: Identify Launchpad PPA Files

Inside the folder:

• Right-click a file
• Open it with Mousepad

Look for entries containing:

ppa.launchpadcontent.net

If you find this, the file is a Launchpad PPA repository.

Step 3: Disable the Launchpad PPA

There are two possible formats for repository files. Follow the method that matches your file type.

Method A: .sources Format (Recommended / New Format)

If the file ends with .sources, it uses the modern deb822 format.

To disable the repository, add this line:

Enabled: no

Example:

Types: deb
URIs: https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu/
Suites: resolute
Components: main
Enabled: no

Then:

• Save the file
• Close Mousepad

Method B: .list Format (Older Format)

If the file ends with .list, disable it by commenting out the repository line.

Example:

Before:

deb https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu resolute main

After:

# deb https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu resolute main

Then:

• Save the file
• Close Mousepad

Step 4: Update Package List

After disabling all Launchpad PPAs, return to Terminal and run:

sudo apt update

The errors related to Launchpad PPAs should no longer appear.

Step 5: Avoid Using PPAs Temporarily

While the issue persists:

• Do not install packages from Launchpad PPAs
• Do not add new PPAs (for example: ppa:deluge-team/stable)

It is recommended to use only the official Ubuntu repositories during this time.

Step 6: Re-enable PPAs After Recovery

This workaround is only temporary.

Once Launchpad services return to normal (you can check the status on the Canonical status page: https://status.canonical.com/), you can re-enable the PPAs.

• For .sources files → change:

Enabled: yes

(or remove the Enabled: no line)

• For .list files → remove the # at the beginning of the line

Then run:

sudo apt update

FAQ (Frequently Asked Questions)

Q1: Will disabling Launchpad PPAs affect installed applications?
No. Applications installed from PPAs will continue to work normally. Disabling a PPA only prevents updates or new installations from that source.

Q2: Can I still install software while PPAs are disabled?
Yes. You can still install software from the official Ubuntu repositories. Only PPA-based packages will be unavailable temporarily.

Q3: Is this issue caused by a problem in FunOS?
No. This issue is related to Ubuntu infrastructure and Launchpad services, not FunOS itself.

Q4: Is my system or data at risk?
No. This is a connectivity issue caused by a DDoS attack. Your system and data remain safe.

Q5: How do I know if a repository is a Launchpad PPA?
Open the repository file and look for:

ppa.launchpadcontent.net

If this appears, it is a Launchpad PPA.

Q6: When should I re-enable the PPAs?
You can re-enable them once Launchpad services are back to normal. Check the status at: https://status.canonical.com/

Q7: What happens if I don’t disable the PPA?
You will continue to see warnings or errors during apt update, but your system will still function normally.

Conclusion

Errors during apt update caused by unreachable Launchpad PPAs are temporary and not related to your system configuration. By disabling the affected repositories, you can continue updating your system without interruption.

Once the Ubuntu infrastructure issue is resolved, simply re-enable the PPAs to restore full functionality.