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28 votes
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How do I remove a PPA?

There are multiple ways to remove a PPA. Option 1 : Open the Applications menu ( super + space ) and search for Software and Updates In the Software and Updates app, select the Other Software tab ...
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  • 1,933
16 votes

Can I safely install any PPA for Ubuntu on elementary?

PPAs are inherently unsafe. By adding a PPA, you are giving a 3rd party the ability to distribute/replace any package (including important security-related system packages), and consequently the ...
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  • 9,734
12 votes
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Can I "convert" a Ubuntu installation to an elementary installation?

You could install the elementary desktop and all the standard applications on top of your existing Unity desktop with these commands: sudo add-apt-repository ppa:elementary-os/stable sudo add-apt-...
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  • 732
6 votes
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How to install Flatpak?

You're in the right track on installation of Flatpak on Elementary as indicated on their guide. You might not be aware of it, but add-apt-repository is disabled by default on Elementary (to avoid ...
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6 votes
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How install ADB and Fastboot on elementary os?

ADB and Fastboot are available in the webupd8 PPA (including backports for Ubuntu 12.04, 11.10 and 11.04 as well as for older versions of elementary OS). You can install these tools using their PPA: ...
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5 votes
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Can I safely install any PPA for Ubuntu on elementary?

PPA (Personal Package Archive) are used to include a specific software to elementary OS. Note that sometimes Ubuntu ppas can break things, but this is rare. The "safeness" of a PPA depends mostly on ...
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  • 1,051
5 votes

How install ADB and Fastboot on elementary os?

sudo apt-get install android-tools-adb android-tools-fastboot This command will install ADB and Fastboot for you. elementary OS Freya is built on top of Ubuntu 14.04 so it has the very same package ...
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4 votes
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"could not find a distribution template for Ubuntu/n/a" error in elementary OS

The possible fix: sudo apt-get install gksu # If not installed sudo apt-get install libcanberra-gtk-module:i386 # If you get Failed to load module "canberra-gtk-module" error Now gksudo nano /etc/...
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  • 7,877
3 votes
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ppa/git problems after installing certificates. Revert system to default?

The problem comes after installing some certificates, and did not resolve when I removed them, not even using sudo apt-get install --reinstall ca-certificates or sudo dpkg-reconfigure ca-certificates. ...
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  • 1,284
3 votes

ppa essential for ElementaryOS

Everything you need is already inside /etc/apt/sources.list.d/ and /etc/apt/sources.list. You don't need any extra PPA. If you want some interesting programs you can check the following: Just ...
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  • 1,974
3 votes
Accepted

How to remove installed packages by daily PPA

You can install a small app called ppa-purge. It will uninstall/downgrade all the apps & libraries installed. To install ppa-purge, open a terminal and: sudo apt-get install ppa-purge To more ...
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  • 2,268
3 votes

What benefits does a PPA offer that a .deb or installing from the standard repositories doesn't?

The fact that there is no distinguishable difference between installing software through trusted repositories, such as the main repository, and then installing software through a PPA (GUI and CLI) ...
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  • 7,877
3 votes

Error: "Signatures couldn't be verified because the public key is not available"

You can use Y-PPA manager: To solve this install y-ppa-manager.To install open terminal and run: sudo add-apt-repository ppa:webupd8team/y-ppa-manager sudo apt-get update sudo apt-get install y-ppa-...
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  • 7,877
3 votes
Accepted

Error: "Signatures couldn't be verified because the public key is not available"

Open terminal and run: The proper way to add missing keys (here AE0A77A7BFF792D0) gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv AE0A77A7BFF792D0 which retrieves the key from ubuntu key ...
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  • 7,877
3 votes

How can I identify a PPA is safe or not?

The only way to be absolutely certain is by reading the code and checking if it is not malicious. If you can't read code or don't have the time to do so (almost no one does :p) you can verify how ...
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  • 1,039
3 votes
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apt update "does not have a Release file"

So, I was looking in the wrong path. The file I needed to edit was /etc/apt/sources.list. I just replaced loki to xenial and it worked.
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  • 161
3 votes

Repository Release' does not have a Release file

To solve the error open terminal and run: sudo add-apt-repository --remove ppa:versable/elementary-update For hash sum mismatch run: sudo rm -rf /var/lib/apt/lists/* Now run: sudo apt-get update
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2 votes

How do I remove a PPA?

You can use y-ppa manager To install open terminal and run: sudo add-apt-repository ppa:webupd8team/y-ppa-manager sudo apt-get update sudo apt-get install y-ppa-manager It is GUI tool to remove, ...
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  • 7,877
2 votes

How to fix gpg: keyblock resource `/etc/apt/trusted.gpg.d/<key>.gpg': resource limit

One may try launchpad-getkeys. Delete all the contents in /etc/apt/trusted.gpg.d/. Add $ sudo add-apt-repository ppa:nilarimogard/webupd8 repository sudo apt-get update your local database Install $ ...
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  • 2,116
2 votes

Adding support for the “hevc” format to VLC without using ppa

You can upgrade to VLC 2.2.x or higher to get HEVC/H.265 support.To upgrade to latest version please refer how-do-i-install-the-latest-version-of-vlc-media-player (here you need to install ...
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  • 7,877
2 votes
Accepted

elementary OS PPA's

Since the currently supported version of elementary OS (0.3 Freya) is based upon the current LTS version of Ubuntu (14.04)*, anything that works with Trusty should work just fine in elementary. So, ...
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  • 3,216
2 votes
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I've added the Daily PPA and Appstream causes an error when trying to upgrade

As you can see there is a conflict between two packages (appstream-data-pantheon and appstream-data-pantheon-loki-stable) that both want to install a file (/usr/share/app-info/yaml/pantheon_xenial-...
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  • 4,492
2 votes
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Recent change in elementary OS repository structure?

I have it on good authority from within elementary that no repository should ever contain luna, freya, or loki. If your sources.list ever contained that, they were incorrect, and should be changed to ...
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  • 4,929
2 votes

apt-get is busted, linux noob

i fixed it by removing armhf using dpkg and restoring my apt directory by copying the entire folder from clean install media.
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2 votes
Accepted

'Doesn't have a release file' message upon Tweaks installation

That means you added a PPA that doesn't work with the current version of elementary. To delete it do sudo add-apt-repository --remove ppa:mpstark/elementary-tweaks-daily
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  • 1,974
2 votes

In app centre it is showing failed to fetch updates

The tor-browser package in that ppa has not been updated in a very long time, I do not recommend using it. My suggestion is to remove that ppa, to get AppCenter working again, and then install tor ...
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  • 2,150
2 votes
Accepted

How do I use PPAs with Elementary OS?

Elementary, like Debian and some other Debian derivatives, doesn't support PPAs out of the box. In order to use them, you'll have to install software-properties-common. Open your terminal with CTRL + ...
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  • 286
2 votes

How do I use PPAs with Elementary OS?

Where possible, it's recommended to not use PPAs at all. Adding a PPA is essentially giving the owner of the PPA root (administrator) level access to your system. It is possible for them to ...
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  • 1,419

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