Add/remove software

I just installed purism in virtual box. I can’t figure out how to get to the “add/remove software” screens you show in your faqs. Can you help me?

This tread seems to have no activity…
I have the same problem : I don’t find how to install software (the right way) in Pure OS 2.0
Help still needed so :wink:


Also cannot find ‘Add/Remove Software’ on PureOS 2.0. Can anyone please explain if I am missing something or how I can enable it? Thanks

Please goto →→→ ←←←

Use Synaptic package manager :slight_smile:

I need: openvpn, GnuPG, KGpg, gFTP, ConvertAll. But they are not offered by the Synaptic Package Manager that comes with pureOS.

The only sources of packages in Synaptic Package Manager are 2 at /etc/apt/sources.list:

deb stretch/updates main  
deb-src stretch/updates main  
# deb cdrom:[Debian GNU/Linux none _Stretch_ - Official Snapshot amd64 LIVE/INSTALL Binary 20151112-20:48]/ stretch main 
# deb cdrom:[Debian GNU/Linux none _Stretch_ - Official Snapshot amd64 LIVE/INSTALL Binary 20151112-20:48]/ stretch main

It seems that I need to add sources to ‘sources.list’. Is this correct? If so, how do I do this?

Also, it seems that it is not too cool to indiscriminately add sources to Synaptic Package Manager. So, is there a way to see what is in various sources before setting them up in Synaptic/sources.list?

Hi Bob!

Please go to Settings -> Repositories and activate repos that you need. [1][2] In case there is no sources there to activate, you can add them manually.[3][4]

Please let me know if you succeeded.


Hi Mladen,

Thanks for the URLs. Looks like some work to dig into. I will let you know how I make out.


Also our repos are:

deb stretch main 
deb pureos main

I’ve an issue after adding these repos and the public key with wget + apt-key, when apt-get update, I’ve an error :

The file "Release" for expired (invalid since 1d 4h 44min 12s)

What happens ? How can I go forward please ?

I have the same error here. I’m not sure what is happening, will post a reply once sort this out.

Nicolas, you can temporary overcome this by adding “Acquire::Check-Valid-Until=false” option to the apt-get command:

We’ll see to fix this in the meantime.

Repo problems have been fixed.

What you really want to do is adjust your apt sources so that you’re just using debian “stretch”. Then you can install and update everything you would expect to on a normal linux distro. (And these days, the linux kernel in debian “stretch” should support the touchpad, so a separate pureos kernel package is probably not needed.)

For hints on how to do that, see

Pierce, we recommend to leave our repos active, too, because we have some things not found in Debian ones. So far it’s the kernel, artwork, PureBrowser and Tor. There will be other stuff in the future.

I’m getting the following error

The repository ' stretch Release' does not have a Release file.Updating from such a repository can't be done securely, and is therefore disabled by default.See apt-secure(8) manpage for repository creation and user configuration details.The repository ' pureos Release' does no longer have a Release file.

Please advise. I wanted to update and add the debian repos that are listed above (so I could add additional software) but those give me the same errors as well.

-Jason <- all explained in here

I’m trying to add Brackets, a code editor. The instructions tell me to add a ppa to my repository with the following commands

sudo add-apt-repository ppa:webupd8team/brackets
sudo apt-get update
sudo apt-get install brackets

However, add-apt-repository yields a command not found error. I found that Synaptic supports adding ppa so I followed the instructions to add it via Synaptic.

Open Synaptic.
Open menu Settings > Repositories > open tab Other Software.
At that tab, click Add button.
Now paste your PPA address into the text box. Then click Add Source.

However, when I look at the Synaptic Package Manager Settings > Repositories menu there are no tabs and certainly no “Other Software” tabs. Any help?

Hi Jason,

We don’t support PPA. But you can download .deb file and install it manually (via gdebi - sudo gdebi ./brackets-ver.deb).

Is PPA support planned?

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