verification that it fixes the problem for me, re: autopkgtest. As that was the same cause/problem as initial reporter's, I expect it should be fixed for them as well.
ddstreet@thorin:~/bugs/lp1730627/verification$ pull-lp-source lsb-base trusty pull-lp-source: Using source package 'lsb' for binary package 'lsb-base' pull-lp-source: Found lsb 4.1+Debian11ubuntu6.2 in trusty pull-lp-source: Good signature by Steve Langasek <steve.langa...@ubuntu.com> (0x568D30F321B2133D) pull-lp-source: Downloading lsb_4.1+Debian11ubuntu6.2.tar.xz from archive.ubuntu.com (0.063 MiB) dpkg-source: info: extracting lsb in lsb-4.1+Debian11ubuntu6.2 dpkg-source: info: unpacking lsb_4.1+Debian11ubuntu6.2.tar.xz ddstreet@thorin:~/bugs/lp1730627/verification$ autopkgtest -U lsb_4.1+Debian11ubuntu6.2.dsc -- lxd ubuntu-daily:trusty autopkgtest [14:16:23]: version 5.1 autopkgtest [14:16:23]: host thorin.lan; command line: /usr/bin/autopkgtest -U lsb_4.1+Debian11ubuntu6.2.dsc -- lxd ubuntu-daily:trusty ... (normal setup output) ... autopkgtest [14:17:36]: testbed dpkg architecture: amd64 autopkgtest [14:17:38]: testbed running kernel: Linux 4.15.0-10-generic #11-Ubuntu SMP Tue Feb 13 18:23:35 UTC 2018 autopkgtest [14:17:38]: @@@@@@@@@@@@@@@@@@@@ source lsb_4.1+Debian11ubuntu6.2.dsc autopkgtest [14:17:42]: ERROR: "dpkg --unpack /tmp/autopkgtest.Mrh8tN/autopkgtest-satdep.deb" failed with stderr "dpkg-deb: error: archive '/tmp/autopkgtest.Mrh8tN/autopkgtest-satdep.deb' has premature member 'control.tar.xz' before 'control.tar.gz', giving up dpkg: error processing archive /tmp/autopkgtest.Mrh8tN/autopkgtest-satdep.deb (--unpack): subprocess dpkg-deb --control returned error exit status 2 Errors were encountered while processing: /tmp/autopkgtest.Mrh8tN/autopkgtest-satdep.deb using -proposed package: ddstreet@thorin:~/bugs/lp1730627/verification$ autopkgtest --apt-pocket proposed=dpkg -U lsb_4.1+Debian11ubuntu6.2.dsc -- lxd ubuntu-daily:trusty autopkgtest [14:19:13]: version 5.1 autopkgtest [14:19:13]: host thorin.lan; command line: /usr/bin/autopkgtest --apt-pocket proposed=dpkg -U lsb_4.1+Debian11ubuntu6.2.dsc -- lxd ubuntu-daily:trusty ... (normal setup output) ... Preparing to unpack .../dpkg-dev_1.17.5ubuntu5.8_all.deb ... Unpacking dpkg-dev (1.17.5ubuntu5.8) ... ... dpkg-buildpackage: binary only upload (no source included) dpkg-source: info: using options from src/debian/source/options: --compression=xz * SKIP no tests in this package autopkgtest [14:24:14]: @@@@@@@@@@@@@@@@@@@@ summary * SKIP no tests in this package autopkgtest is able to continue with -proposed dpkg. ** Tags removed: verification-needed verification-needed-trusty ** Tags added: verification-done verification-done-trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1730627 Title: xz compressed control.tar files not supported To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1730627/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs