Am Dienstag, 18. Juni 2019, 21:10:53 CEST schrieb Thorsten Glaser: > Tobias Junghans dixit: > >I tried to upgrade my Docker-based pbuilder containers from stretch to > > Erm… why do you use chroots inside of chroots? That’s… tricky.
Simple because we use Gitlab Runners with the builtin Docker Executor (https://docs.gitlab.com/runner/executors/docker.html) for running all kinds of jobs in a generic manner. Depending on the project individual pre-built Docker images (specified in the CI config) providing the desired build tools and toolchains are used. The jobs for building Debian packages use a Docker container with Debian and pbuilder installed. This used to work for years but for Buster-based containers (i.e. pbuilder and debootstrap from Buster) it doesn't any longer. > >mount: failed to read mtab: No such file or directory > > This might be a container issue. The mounts are fine before running pbuilder/debootstrap. Afterwards proc is not mounted even in the Docker container. The state of the container and its mounts shouldn't change when running debootstrap. I also saw Docker/container- related changes between 1.0.89 (stretch) and buster (1.0.114) which likely cause the misbehaviour: https://salsa.debian.org/installer-team/debootstrap/commit/ 5a0f16664066b24c42c074643a4ca178890d7af7 https://salsa.debian.org/installer-team/debootstrap/commit/ 0962af1527a1ba0e996a0b442b159b4dbf164988 https://salsa.debian.org/installer-team/debootstrap/commit/ 1e7549c57c0f15816c89c4f243051785ca383be9 > >mount: /proc: mount(2) system call failed: Too many levels of symbolic > >links. > Check if /proc outside of pbuilder but inside the container is right. /proc in the container is fine, see first output of "cat /proc/mounts " in by original bug report. > But with {cow|p}builder --login --save-after-login you can > upgrade the base to buster inside pbuilder. It's not about the pbuilder environment itself but the Docker container used for invoking pbuilder/debootstrap. Using a stretch-based Docker container and debootstrapping Buster works fine. Thanks and best regards Tobias
