Package: debian-installer Followup-For: Bug #833599 Few more details.
I bissected the problem to start showing up in image https://d-i.debian.org/daily-images/amd64/20160731-00:14/netboot/mini.iso but not showing in Comparing https://d-i.debian.org/daily-images/amd64/20160731-00:14/build_netboot.log and https://d-i.debian.org/daily-images/amd64/20160801-00:15/build_netboot.log with lines Unpacking I see this diff only: $ grep Unpacking build_netboot.log > /tmp/a1 $ grep Unpacking build_netboot.log.1 > /tmp/a2 $ diff /tmp/a1 /tmp/a2 12,13c12,13 < Unpacking choose-mirror-bin (2.70) ... < Unpacking choose-mirror (2.70) ... --- > Unpacking choose-mirror-bin (2.69) ... > Unpacking choose-mirror (2.69) ... 92c92 < Unpacking wpasupplicant-udeb (2.5-1) ... --- > Unpacking wpasupplicant-udeb (2.3-2.4) ... Which is strange. As the 2.70 only contains translation fixes. But it is possible that the compiler used or libc used was different than previously, which somehow manifests here.