Given:
martind@stormy:~$ cat /etc/apt/sources.list.d/bookworm.list
deb http://mirrors.edge.kernel.org/debian bookworm contrib
#deb http://ftp.us.debian.org/debian bookworm contrib
martind@stormy:~$
... downloading the package indexes fails:
martind@stormy:~$ sudo apt update
...
Reading package lists... Done
E: The repository 'http://mirrors.edge.kernel.org/debian bookworm Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
martind@stormy:~$
Switch to the commented-out line and all is well. (contrib isn't especially interesting but it is small, yet demonstrates the problem.)
The files at:
https://mirrors.edge.kernel.org/debian/dists/bookworm/
... are far too small, compared to:
https://ftp.debian.org/debian/dists/bookworm/
(I'd be consistent and use ftp.us.debian.org but it fails certificate validation for me.)
They return a custom 404 page. Could they be dangling symlinks? It's not a problem shared with Debian's own mirrors or, to pick some that might be geographically close from Debian's list of other mirrors:
http://mirrors.ocf.berkeley.edu/debian/dists/bookworm/
http://mirrors.namecheap.com/debian/dists/bookworm/
http://mirror.cogentco.com/debian/dists/bookworm/
... so it seems to be specific to mirrors.kernel.org, although I suspect provoked by a change in Debian, because the onset was not long after the arrival of:
https://ftp.debian.org/debian/dists/Debian12.1/
I can certainly sympathize but:
https://www.kernel.org/category/contact-us.html
... feels like "talk to the hand, we can't deal with teh n00b5".
Does the presence of edge.kernel.org at:
http://ftp.de.debian.org/dmc/today/
... which I learned about from Stack Overflow suggesting I read Need explanation for the Debian Mirror Checker status page before posting this, indicate that it's in some way a Debian-run mirror and that there might therefore be hope of getting attention by raising a Debian bug? (mirrors.kernel.org redirects to mirrors.edge.kernel.org these days.)
I guess I'll have to switch to another mirror site, but that's a shame because mirrors.kernel.org has been reliable and quick for years. The odd glitch or two, which might have come from upstream, has previously been fixed in a couple of days, far as I recall, whereas this problem has dragged on for a week now. I doubt wailing into the void here will help but...
