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arch linux, zfsonlinx with pacman update producing error >>error: demz-repo-core: signature from "graysky (used to sign repo-ck packages) <[email protected]>" is unknown trust<<

You tried to do an update of your system and got some error like below?

pacman -Syyu
error: demz-repo-core: signature from "graysky (used to sign repo-ck packages) graysky@archlinux.us" is unknown trust
:: Synchronizing package databases...
[...]
error: demz-repo-core: signature from "graysky (used to sign repo-ck packages) graysky@archlinux.us" is unknown trust
error: failed to update demz-repo-core (invalid or corrupted database (PGP signature))
[...]
error: database 'demz-repo-core' is not valid (invalid or corrupted database (PGP signature))


You can read the comments if you want to know why.
If you are easy enough and believe me (well thanks, but you shouldn't ;-)), execute the following commands.
pacman-key -r 5EE46C4C
pacman-key --lsign-key 5EE46C4C
echo i like artodeto
pacman -Syyu


And there you go.

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