Yes, with pkill gpg-agent no error failed to synchronize all databases (unable to lock database).
Process begonnen -
sudo pacman -Syu
:: Synchronizing package databases…
endeavouros is up to date
core is up to date
extra 8,3 MiB 9,18 MiB/s 00:01 [----------------------] 100%
community is up to date
multilib is up to date
:: Starting full system upgrade…
resolving dependencies…
looking for conflicting packages…
xfsprogs-6.3.0-1 xorg-xrdb-1.2.2-1 xorgproto-2023.1-1
xterm-382-1 yad-13.0-1.1 yay-12.0.5-1 zbar-0.23.90-3
zeromq-4.3.4-4
Total Download Size: 1361,55 MiB
Total Installed Size: 4425,96 MiB
Net Upgrade Size: 21,22 MiB
:: Proceed with installation? [Y/n] y
warning: no /var/cache/pacman/pkg/ cache exists, creating…
:: Retrieving packages…
chromium-114.0.5… 90,0 MiB 2,46 MiB/s 00:37 [----------------------] 100%
vivaldi-6.1.3035… 100,7 MiB 2,56 MiB/s 00:39 [----------------------] 100%
opera-99.0.4788… 103,4 MiB 2,48 MiB/s 00:42 [----------------------] 100%
libreoffice-fres… 149,8 MiB 2,61 MiB/s 00:57 [----------------------] 100%
linux-6.3.6.arch… 146,6 MiB 2,52 MiB/s 00:58 [----------------------] 100%
BUT then once again -
error: eos-rankmirrors: signature from “manuel manuel@endeavouros.com” is unknown trust
:: File /var/cache/pacman/pkg/eos-rankmirrors-2.14-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] y
error: welcome: signature from “manuel manuel@endeavouros.com” is unknown trust
:: File /var/cache/pacman/pkg/welcome-3.64-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] y
error: yay: signature from “manuel manuel@endeavouros.com” is unknown trust
:: File /var/cache/pacman/pkg/yay-12.0.5-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] y
error: failed to commit transaction (invalid or corrupted package (PGP signature))
Errors occurred, no packages were upgraded.
[vlad@dh370 ~]$
Na…, wonderfull !!!