Re: docker-image-debian-all-test-cross errors

["Daniel P. Berrangé" <berrange@redhat.com>]

On Sat, Jul 04, 2026 at 09:41:34PM -0700, Richard Henderson wrote:
> On 7/4/26 14:41, Mark Cave-Ayland wrote:
> > On 04/07/2026 22:20, Richard Henderson wrote:
> > 
> > > Has anyone else been seeing
> > > 
> > > Error: Failed to fetch
> > > http://deb.debian.org/debian/pool/main/d/dpkg/libdpkg-
> > > perl_1.22.21_all.deb  404  Not Found [IP: 151.101.22.132 80]
> > > Error: Failed to fetch
> > > http://deb.debian.org/debian/pool/main/d/dpkg/dpkg-
> > > dev_1.22.21_all.deb  404  Not Found [IP: 151.101.22.132 80]
> > > Error: Failed to fetch
> > > http://deb.debian.org/debian/pool/main/p/python3.13/
> > > libpython3.13_3.13.5-2_amd64.deb  404 Not Found [IP: 151.101.22.132
> > > 80]
> > > Error: Failed to fetch
> > > http://deb.debian.org/debian/pool/main/g/glibc/libc6-
> > > i386_2.41-12_amd64.deb  404  Not Found [IP: 151.101.22.132 80]
> > > Error: Unable to fetch some archives, maybe run apt-get update or try with --fix- missing?
> > > Error: building at STEP "RUN DEBIAN_FRONTEND=noninteractive
> > > eatmydata   apt install - y --no-install-recommends   clang 
> > > dpkg-dev  gdb-multiarch  libclang-rt-dev": while running runtime:
> > > exit status 100
> > > make: *** [/home/rth/qemu/src/tests/docker/Makefile.include:43:
> > > docker-image-debian- all-test-cross] Error 100
> > > 
> > > This has been consistently failing for me for a couple of weeks...
> > > 
> > > r~
> > 
> > I wonder if docker build has cached the existing layers, and since
> > apt-get update only runs in the first part of the Dockerfile then the
> > subsequent layers try to access an old base image?
> > 
> > Does running "docker builder prune" (possibly with --all) help at all?
> > That should purge the cache and force docker to rebuild all the layers
> > again.
> 
> No, it doesn't.

Note QEMU will preferentially to use 'podman' if both docker and
podman are installed. So 'docker builder prune' might be purging
the wrong cache.  Try 'podman builder prune', or manually run
"podman pull docker.io/library/debian:13-slim" to force refresh
the base image.

With regards,
Daniel
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