Dev1 Galaxy Forum / [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

Re: [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (rolfie) — Wed, 21 Oct 2026 19:16:21 +0000

You are welcome. Thats what we are here for.

Re: [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (marma-lade) — Wed, 21 Oct 2026 18:27:05 +0000

Yup, that's what it was. I never would have realized that except for rolfie's help. Thanks a bunch.

Re: [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (marma-lade) — Wed, 21 Oct 2026 18:13:10 +0000

So I should delete /etc/apt/sources.list.d/brave-browser-release.sources

Re: [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (marma-lade) — Wed, 21 Oct 2026 18:09:03 +0000

Oops, inxi wasn't installed.

Repos:
  Packages: 1894
  Active apt repos in: /etc/apt/sources.list
    1: deb http://deb.devuan.org/merged excalibur main non-free-firmware non-free contrib
    2: deb http://deb.devuan.org/merged excalibur-updates main
    3: deb http://deb.devuan.org/merged excalibur-security main
  Active apt repos in: /etc/apt/sources.list.d/helium.list
    1: deb [signed-by=/usr/share/keyrings/helium.gpg] https://pkg.helium.computer/deb stable main
  Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.sources
    1: deb [arch=amd64 arm64] https://brave-browser-apt-release.s3.brave.com stable main
  Active apt repos in: /etc/apt/sources.list.d/extrepo_librewolf.sources
    1: deb [arch=amd64 arm64] https://repo.librewolf.net librewolf main
Info:
  Memory: total: 16 GiB note: est. available: 15.21 GiB used: 2.86 GiB (18.8%)
  Processes: 336 Uptime: 28m Init: SysVinit runlevel: 2
  Compilers: gcc: 14.2.0 Shell: Bash v: 5.2.37 inxi: 3.3.38

Re: [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (marma-lade) — Wed, 21 Oct 2026 18:05:54 +0000

As for inxi, I'll have to see what its path is, given that bash cannot find it.

Re: [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (marma-lade) — Wed, 21 Oct 2026 18:03:47 +0000

It must have been with "curl -fsS https://dl.brave.com/install.sh | sh" which I saw on Brave's website. I really wish browser devs would just supply a .deb.

Re: [SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (rolfie) — Wed, 21 Oct 2026 18:00:44 +0000

How did you install Brave? Which instruction did you follow?

Please show us the output from

inxi -Fzxr

especially the repo part.

[SOLVED] uninstalled Brave, but "The following signatures couldn't be verified"

dummy@example.com (marma-lade) — Wed, 21 Oct 2026 17:50:33 +0000

I'm running Devuan MATE Excalibur on an Intel NUC.

I'm tired of Chromium-based browsers that complain about keyrings and other things. So I uninstalled Brave via Synaptic, doing a purge. But then when I do "apt update" I see errors from Brave. This has got to be something easy that I need to delete, but I cannot see it. My sources.list has no reference to Brave's repositories. Any hints?

Hit:3 https://brave-browser-apt-release.s3.brave.com stable InRelease          
Err:3 https://brave-browser-apt-release.s3.brave.com stable InRelease          
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY some-number
...
An error occurred during the signature verification. The repository is not updated and the previous index files will be used. OpenPGP signature verification failed: https://brave-browser-apt-release.s3.brave.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0686B78420038257
Warning: Failed to fetch https://brave-browser-apt-release.s3.brave.com/dists/stable/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY some-number