initramfs-tools 0.125ubuntu4 (ip-config → dhclient) breaks multipath-tools tests

[Martin Pitt]

https://launchpad.net/ubuntu/+source/initramfs-tools/0.125ubuntu4 reliably breaks multipath-tools' autopkgtests on the infrastructure. The instances don't reboot after test setup, thus cause a "tempfail", and are being retried infinitely.

This does not reproduce with QEMU locally, I'll run this manually on the infra and collect some logs.

[Martin Pitt (pitti)]

This is the log from a manual test run, with "nova console-log" at the end. This is a bit curious -- the instance does seem to get an IP via DHCP, but sshing to it says "no route to host". Unfortunately my only "foot into the door" without ssh is console-log, which is read-only.

autopkgtest/runner/autopkgtest -o /tmp/out --setup-commands /home/ubuntu/autopkgtest-cloud/worker-config-production/setup-canonical.sh --setup-commands /home/ubuntu/autopkgtest/setup-commands/setup-testbed --apt-pocket=proposed=src:initramfs-tools --apt-upgrade multipath-tools -- ssh -s /home/ubuntu/autopkgtest/ssh-setup/nova -- --flavor autopkgtest --image 'ubuntu/ubuntu-yakkety-.*-amd64-server' --keyname testbed-juju-prod-ues-proposed-migration-machine-3 --net-id=net_ues_proposed_migration -e ''"'"'http_proxy=http://squid.internal:3128'"'"'' -e ''"'"'https_proxy=http://squid.internal:3128'"'"'' -e ''"'"'no_proxy=127.0.0.1,127.0.1.1,localhost,localdomain,novalocal,internal,archive.ubuntu.com,security.ubuntu.com,ddebs.ubuntu.com,changelogs.ubuntu.com,ppa.launchpad.net'"'"'' --mirror=http://ftpmaster.internal/ubuntu

[Martin Pitt (pitti)]

ooh! that would explain it:

Calculating upgrade...
The following packages will be REMOVED:
  isc-dhcp-client ubuntu-minimal
The following packages will be upgraded:
  initramfs-tools initramfs-tools-bin initramfs-tools-core

http://people.canonical.com/~ubuntu-archive/proposed-migration/update_excuses.html#isc-dhcp is fine to land except for the release freeze, and once it does it will test cleanly. In the meantime, I'll run with --all-proposed.