Ppa-key problem with install on Linux Mint

[Muragavino]

Hi there! Unfortunately I cannot install KiCad 6 on Linux Mint. In trying to do so, I always run into an error with the ppa. Setting up the ppa:kicad/kicad-6.0-releases in Software Sources I got the following error text:

W:GPG error: http://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 245D5502FAD7A805, E:The repository 'http://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu focal InRelease' is not signed.

Trying to do it with the CLI I got:

michael@michael-ThinkPad-T460:~$ sudo add-apt-repository --yes ppa:kicad/kicad-6.0-releases
You are about to add the following PPA:
 Official KiCad 6.0 releases
 More info: https://launchpad.net/~kicad/+archive/ubuntu/kicad-6.0-releases
Executing: /tmp/apt-key-gpghome.bY5XZc1RMC/gpg.1.sh --keyserver hkps://keyserver.ubuntu.com:443 --recv-keys FDA854F61C4D0D9572BB95E5245D5502FAD7A805
gpg: keyserver receive failed: General error

michael@michael-ThinkPad-T460:~$ sudo apt-get update
...
Err:9 http://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu focal InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 245D5502FAD7A805
Reading package lists... Done
W: GPG error: http://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 245D5502FAD7A805
E: The repository 'http://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu focal InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Trying the nightly build gave the same error:

michael@michael-ThinkPad-T460:~$ sudo add-apt-repository ppa:kicad/kicad-dev-nightly
You are about to add the following PPA:
 KiCad nightly packages (master branch)

* Provides separation between stable and daily build packages
* Allows installation of KiCad stable and daily on the same machine
* This version can be unstable (dev branch of KiCad)

KiCad now needs boost >= 1.59. Xenial (16.04) is no longer compatible.
 More info: https://launchpad.net/~kicad/+archive/ubuntu/kicad-dev-nightly
Press Enter to continue or Ctrl+C to cancel

Executing: /tmp/apt-key-gpghome.Db2UjfFUDu/gpg.1.sh --keyserver hkps://keyserver.ubuntu.com:443 --recv-keys FDA854F61C4D0D9572BB95E5245D5502FAD7A805
gpg: keyserver receive failed: General error

Obviously I cannot get the key. Why? Any help is appreciated!

[gmc]

Try manually installing the key.

gpg --keyserver keyserver.ubuntu.com --recv-key 245D5502FAD7A805

then sudo apt-get update again

[Muragavino]

Hi gmc, thanks for the help!

I did as you suggested. The gpg command seemed to work (see below), but the update gave the exact same result as before (see above).

michael@michael-ThinkPad-T460:~$ gpg --keyserver keyserver.ubuntu.com --recv-key 245D5502FAD7A805
gpg: key 245D5502FAD7A805: public key "Launchpad PPA for KiCad" imported
gpg: Total number processed: 1
gpg:               imported: 1

Just to be sure, I rebooted and tried again, but got eactly the same result. As well I tried to download the key as described in
https://launchpad.net/~kicad/+archive/ubuntu/kicad-6.0-releases
but again with no result.
Reinstalling KiCad 5.1.5 instead workes like a charm. I do not know where to bang my head!

[gmc]

What version of Mint are you running.

Can you post result of
cat /etc/os-release

[jmk]

I use Mint: 20.2 Cinnamon

Downloaded from here:https://www.kicad.org/

You can find it in Help/ About Kicad.

Just copy and paste, or type the three lines:

sudo add-apt-repository --yes ppa:kicad/kicad-6.0-releases
sudo apt update
sudo apt install --install-recommends kicad

And sit back and wait for the download to complete then install… It just works!

[Muragavino]

Hi jmk: Thanks, but unfortunately it is the 1st line that doesn’t work.

Hi gmc, I got:
michael@michael-ThinkPad-T460:~$ cat /etc/os-release
NAME=“Linux Mint”
VERSION=“20 (Ulyana)”
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME=“Linux Mint 20”
VERSION_ID=“20”
HOME_URL=“h…ps://www.linuxmint.com/”
SUPPORT_URL=“h…ps://forums.linuxmint.com/”
BUG_REPORT_URL=“h…p://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/”
PRIVACY_POLICY_URL=“h…ps://www.linuxmint.com/”
VERSION_CODENAME=ulyana
UBUNTU_CODENAME=focal

It is not the newest, but its the one I like.

[jmk]

Sorry, I’m now on 20.3 Uma, but 6 installed perfectly on 20.2 Ulyana

Put in the whole line:
sudo add-apt-repository --yes ppa:kicad/kicad-6.0-releases

You then type in your password.

Then put in the next two lines, then the download starts.

[gmc]

Should be apt-add-repository

[jmk]

@gmc

I copied and pasted from the Kicad site to this forum. Are you sure GMC?

[Muragavino]

Thanks to both! I have tried both versions: with apt-add and with add-apt and got both times the same error result.

Any other ideas, please?

[jmk]

You did cut and paste this whole line from the kicad site then “enter”?
sudo add-apt-repository --yes ppa:kicad/kicad-6.0-releases

[gmc]

Actually seem both should work on Ubuntu

greg@greg-MS-7C56:~$ which add-apt-repository
/usr/bin/add-apt-repository

greg@greg-MS-7C56:~$ which apt-add-repository
/usr/bin/apt-add-repository

On the Ubuntu forms

They’re the same command, someone just added the inverse because people kept mixing the command up and typing it wrong.

@Muragavino can you post the full error.

[jmk]

@gmc

Linux for the dyslexic?

[Muragavino]

Here is the full error:
michael@michael-ThinkPad-T460:~$ sudo add-apt-repository --yes ppa:kicad/kicad-6.0-releases You are about to add the following PPA: Official KiCad 6.0 releases More info: https://launchpad.net/~kicad/+archive/ubuntu/kicad-6.0-releases Executing: /tmp/apt-key-gpghome.bpgfUKA7Qn/gpg.1.sh --keyserver hkps://keyserver.ubuntu.com:443 --recv-keys FDA854F61C4D0D9572BB95E5245D5502FAD7A805 gpg: keyserver receive failed: General error

What baffles me is the last 3 lines from the sudo apt-get update:
E: The repository 'http://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu focal InRelease' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

Why is it not signed?

[gmc]

I don’t think https is supported on that repo. Not sure why. I can browse to
http://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu/

but not
https://ppa.launchpad.net/kicad/kicad-6.0-releases/ubuntu/

Not sure why your Mint is not adding the key.

A very odd error:
keyserver receive failed: General error

Not sure if this will work but try adding the full key manually:

gpg --keyserver keyserver.ubuntu.com --recv-key FDA854F61C4D0D9572BB95E5245D5502FAD7A805

Someone on the mint forums had a similar issue with other packages:
https://forums.linuxmint.com/viewtopic.php?t=359098

and had to install the ca certs.
sudo apt install ca-certificates

[Muragavino]

@gmc

sudo apt install ca-certificates

Thanks a lot! That did the trick. Now I am installing.
Seems it worked, it has installed, but haven’t tried it yet. Seems as well it has overwritten the KiCad 5.1.5 installation.

[gmc]

Great stuff.

Yes, it will overwrite and upgrade 5.x to 6.0

If you want to run both you will need to use appimages

How can I have Kicad version v5 and the new v6 together in the same machine while v6 is not still official?

There is something weird with Kicad-nightly PPA for Ubuntu I used to have 2 PPA installed. The current 5.1.* stable version and the nightly builds. I’ve noticed that I don’t have the 5.1.* anymore. Just the v5.99 and v6. This is kind of weird because this is not what I have installed. 5.1.* may have been replaced on daily updates somehow. It looks like Kicad nightly is almost ready and turning into v6 from v5.99. But as far as I understand it was not released yet. So, the stable one is still…

[Muragavino]

Thanks a lot again, it just seems to be fine, I even have all my own symbols and footprints available without any hassle - GREAT!