On Thu, Apr 27, 2023 at 05:08:10PM +0800, justzx wrote: > Error message: > > Ign:39 http://cdn-fastly.deb.debian.org/debian-security > stretch/updates/non-free Sources
Stretch (Debian 9) probably no longer has a debian-security repo, if it was recently moved to the archive. Remove that from your sources and try again.
