• Edited

kd4e Command 'signify' not found, but can be installed with: sudo apt install signify

That message is not "linked from" the GrapheneOS installation instructions. That message is from your shell's "command not found" handler, which has no idea which version of a program is the right one.

I hopped into my time machine and found old GrapheneOS information on which signify to use: https://web.archive.org/web/20210402204222/https://grapheneos.org/install/cli#obtaining-signify

  • kd4e replied to this.

    de0u Cool, thanks - I thought that was generated by grapheneos - always something new to learn!

    OK, I uninstalled the version of signify I had installed and installed the bsd version instead (not terribly intuitive but I'm fond of OpenBSD, so there's that). :-)

    Unfortunately, I now get this new error ...

    $ curl -O https://releases.grapheneos.org/allowed_signers.sig
    signify -V -m allowed_signers -x allowed_signers.sig -p factory.pub
      % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                     Dload  Upload   Total   Spent    Left  Speed
    100   144  100   144    0     0    436      0 --:--:-- --:--:-- --:--:--   437
    bash: /usr/bin/signify: No such file or directory
    • de0u replied to this.

      kd4e bash: /usr/bin/signify: No such file or directory

      It sounds as if the package installed the program using a different name or in a different directory, in which case you may need to edit the command appropriately.

      Or... I suspect the web installer does this automatically. Has that been tried?

        de0u Does the WebUSB installer require systemd to be present?

        I'm using a non-systemd version of MX Linux.

          • Edited

          de0u

          you must use /usr/bin/signify-openbsd

          or set an alias:
          alias signify='signify-openbsd'

          Hope this helps.

          • [deleted]

          • Edited

          kd4e I believe you should be using OpenSSH to verify the image, not signify. They switched from signify to OpenSSH

          Install OpenSSH
          sudo apt install openssh-client

          Obtain the Key
          curl -O https://releases.grapheneos.org/allowed_signers

          Obtain the Image and Sig File
          curl -O https://releases.grapheneos.org/DEVICE_NAME-factory-VERSION.zip
          curl -O https://releases.grapheneos.org/DEVICE_NAME-factory-VERSION.zip.sig

          Verify the Image
          ssh-keygen -Y verify -f allowed_signers -I contact@grapheneos.org -n "factory images" -s DEVICE_NAME-factory-VERSION.zip.sig < DEVICE_NAME-factory-VERSION.zip

          This is the new (OpenSSH) key,

          contact@grapheneos.org ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIUg/m5CoP83b0rfSCzYSVA4cw4ir49io5GPoxbgxdJE

          You can either verify it by cross referencing with their posts on their socials (links in the install guide) or use their old (signify) key to verify their new (OpenSSH) key (which is what you're trying to do). You would need their old signify key to do that. They signed their new (OpenSSH) key with their old (signify) so you can verify the new OpenSSH key. The new images are signed via OpenSSH not signify.

          The current public key is signed with the previous signify key. If you already have the previous signify public key (factory.pub) and want to verify the new key with it:

          • kd4e replied to this.

            [deleted] Awesome, thanks!
            I got this far, then ...

            $ ssh-keygen -Y verify -f allowed_signers -I contact@grapheneos.org -n "factory images" -s DEVICE_NAME-factory-VERSION.zip.sig < DEVICE_NAME-factory-VERSION.zip
            Couldn't parse signature: missing header
            sig_verify: sshsig_armor: invalid format
            Could not verify signature.

            [deleted] Thanks!

            Is it OK if I just download the .zip and .zip.sig from here via my browser?

            • kd4e replied to this.
              • Edited

              kd4e All good it seems ...

              "Good "factory images" signature for contact@grapheneos.org with ED25519 key SHA256"

              Oh, wait, the actual key isn't at all the same as that one. But it says "Good".

              I'm confused ...

              kd4e I noticed a BSD variant in the MX Linux repository.

              Debian 12 (bookworm) from my install log according to the GrapheneOS CLI guide 11.12.2023:
              (looks like the guide has changed a bit and now uses open-ssh instead of signify)

              ~$ sudo apt install signify-openbsd
              ~$ alias signify=signify-openbsd
              ~$ curl -O https://releases.grapheneos.org/factory.pub
              ~$ curl -O https://releases.grapheneos.org/shiba-factory-2023120800.zip
              ~$ curl -O https://releases.grapheneos.org/shiba-factory-2023120800.zip.sig
              ~$ signify -Cqp factory.pub -x shiba-factory-2023120800.zip.sig && echo verified
              ~$ bsdtar xvf shiba-factory-2023120800.zip
              • kd4e replied to this.

                boldsuck OK, mine is "lynx-factory-2024053100" for a Pixel 7a.

                So, this?

                ~$ signify -Cqp factory.pub -x lynx-factory-202405310.zip.sig && echo verified

                  kd4e No, you no longer need signify to verify the factory images. This is now done with OpenSSH as u/Space already wrote. (openssh-client should be installed on every Unix & Linux by default)

                  The current public key is signed with the previous signify key. If you already have the previous signify public key (factory.pub) and want to verify the new key with it:

                  curl -O https://releases.grapheneos.org/allowed_signers.sig
                  signify -V -m allowed_signers -x allowed_signers.sig -p factory.pub

                  When the current signing key is replaced, the new key will be signed with it.

                  If you don't have the previous signify public key, you can skip this section. Signify is only used to compare the old key with the new one.

                  • kd4e replied to this.

                    boldsuck

                    OK, so I did this ...

                    Verify the Image

                    ssh-keygen -Y verify -f allowed_signers -I contact@grapheneos.org -n "factory images" -s DEVICE_NAME-factory-VERSION.zip.sig < DEVICE_NAME-factory-VERSION.zip

                    Got this (plus a long key string) ...

                    Good "factory images" signature for contact@grapheneos.org with ED25519 key SHA256

                    But that key is not the same as this ...

                    contact@grapheneos.org ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIUg/m5CoP83b0rfSCzYSVA4cw4ir49io5GPoxbgxdJE

                      boldsuck

                      The key that I'm getting is different than the one on github.

                      I'm not sure why support is being scattered across so many different social media systems, rather than just one, it seems counter-intuitive to fragment the information. Sigh.

                      I see that Chat via the Thunderbird email is one alternative - at least I don't have to add yet another app. (I had no idea Thunderbird even had a Chat feature.)

                      I'll give it a try. I'd rather ask first than plow ahead, make a mess, then have to undo the mess and start over.

                      Thanks.

                        kd4e The chat rooms are bridged across Discord, Telegram and Matrix.
                        Just click onGeneral:grapheneos.org, Matrix/Element starts in every browser.

                        kd4e Signify isn't used as part of the current CLI install process. Use our official installation instructions instead of whatever unofficial guide you're following.

                          • Edited

                          GrapheneOS
                          I was here:

                          [(https://grapheneos.org/install/cli)]

                          And read this ...

                          The current public key is signed with the previous signify key. If you already have the previous signify public key (factory.pub) and want to verify the new key with it:

                          curl -O https://releases.grapheneos.org/allowed_signers.sig
                          signify -V -m allowed_signers -x allowed_signers.sig -p factory.pub

                          When the current signing key is replaced, the new key will be signed with it.