Failed to run "pacman -Syy" after installing artiq using "offline installer"

keyi

Issue: After installing "artiq:extra:msys2-offline-installer", I entered the command "pacman -Syy", it returned:
":: Synchronizing package databases...
clang64. db failed to download
msys.db failed to download
artiq.db failed to download ..."

our PC is designated to be internet-disconnected, the offline-installer was downloaded through another laptop and copied to this PC. I thought it should not need any network since it's offline-installer?

Device Info:
OS: Windows 10
Python version: 3.6.13

fsagbuya

The offline installer is designed to set up ARTIQ without requiring an internet connection, and you should be able to use ARTIQ right after installation. The error you're seeing occurs because the pacman -Syy command tries to refresh the package database from online mirrors, which does require a network connection. Since your system is intended to be offline, there's no need to run this command. The pre-installed packages should work as-is.