From 28b40ea5108b6fb70cda5487e8bfb46db71dc4b8 Mon Sep 17 00:00:00 2001
From: tiyn <tiyn@mail-mk.eu>
Date: Thu, 30 Dec 2021 15:23:41 +0100
Subject: [PATCH] arch package manager: added importing and trusting keys

---
 wiki/linux/arch-linux/package-manager.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/wiki/linux/arch-linux/package-manager.md b/wiki/linux/arch-linux/package-manager.md
index 73caee7..ddfbab1 100644
--- a/wiki/linux/arch-linux/package-manager.md
+++ b/wiki/linux/arch-linux/package-manager.md
@@ -18,3 +18,18 @@ right package.
 It is possible that it runs into errors when importing new keys.
 If this happens you should try to restart your gpg key server with
 `gpgconf --kill all`.
+
+### Unknown public key
+
+If the error `ERROR: One or more PGP signatures could not be verified!`, you
+have to manually receive the key and trust it.
+This is done by running the following lines:
+
+```sh
+gpg --recv-key <KEYID>
+gpg --lsign <KEYID>
+```
+
+Where <KEYID> is the placeholder of the identification string of the key.
+It usually gets gets printed in the line above the error looking like
+`FAILED (unknown public key <KEYID>)`.