Thank you manuel,
No, I can’t.
~ sudo pacman -Syu
:: Synchronizing package databases...
endeavouros is up to date
core is up to date
extra is up to date
community is up to date
multilib is up to date
:: Starting full system upgrade...
resolving dependencies...
looking for conflicting packages...
Package (18) Old Version New Version Net Change Download Size
endeavouros/eos-bash-shared 1.42-1 1.43-1 0,00 MiB 0,04 MiB
core/fakeroot 1.30.1-1 1.31-1 0,00 MiB
extra/flatpak 1:1.15.1-1 1:1.15.2-1 0,02 MiB
community/inxi 3.3.24.1-4 3.3.25.1-1 0,00 MiB
endeavouros/kernel-install-for-dracut 1.7-3 1.7-4 0,00 MiB 0,02 MiB
core/less 1:608-1 1:608-2 0,00 MiB
extra/libmspack 1:0.10.1alpha-4 1:0.11alpha-1 0,00 MiB
core/libnl 3.7.0-2 3.7.0-3 0,00 MiB
extra/openpmix 4.2.2-1 4.2.3-1 -0,05 MiB
core/openssl 3.0.7-4 3.0.8-1 0,03 MiB
core/openssl-1.1 1.1.1.s-4 1.1.1.t-1 0,00 MiB
extra/python-setuptools 1:67.1.0-1 1:67.2.0-1 0,00 MiB
extra/python-trove-classifiers 2023.1.20-1 2023.2.8-1 0,00 MiB
extra/qt5-wayland 5.15.8+kde+r57-1 5.15.8+kde+r58-1 0,00 MiB
extra/sdl2 2.26.2-1 2.26.3-1 0,00 MiB
extra/thunderbird 102.7.1-1 102.7.2-1 0,00 MiB
extra/xorg-server 21.1.6-1 21.1.7-1 -0,01 MiB
extra/xorg-server-common 21.1.6-1 21.1.7-1 0,00 MiB
Total Download Size: 0,06 MiB
Total Installed Size: 255,34 MiB
Net Upgrade Size: 0,00 MiB
:: Proceed with installation? [Y/n] y
:: Retrieving packages...
eos-bash-shared-1.43-1-any 46,0 KiB 374 KiB/s 00:00 [-------------------------------------------------------------------] 100%
kernel-install-for-dracut-1.7-4-any 17,9 KiB 95,6 KiB/s 00:00 [-------------------------------------------------------------------] 100%
Total (2/2) 63,9 KiB 290 KiB/s 00:00 [-------------------------------------------------------------------] 100%
(18/18) checking keys in keyring [-------------------------------------------------------------------] 100%
downloading required keys...
:: Import PGP key 003DB8B0CB23504F, "EndeavourOS <info@endeavouros.com>"? [Y/n] y
(18/18) checking package integrity [-------------------------------------------------------------------] 100%
error: eos-bash-shared: signature from "EndeavourOS <info@endeavouros.com>" is unknown trust
:: File /var/cache/pacman/pkg/eos-bash-shared-1.43-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] y
error: kernel-install-for-dracut: signature from "EndeavourOS <info@endeavouros.com>" is unknown trust
:: File /var/cache/pacman/pkg/kernel-install-for-dracut-1.7-4-any.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)
Errors occurred, no packages were upgraded.
EDIT:
I found this:
https://forum.endeavouros.com/t/trouble-updating-invalid-pgp/17055/3
Which solved the problem. Could anybody explain why this happens?