[Bug 1762890] Re: build fails in multi-arch environment (missing changes file)

[Markus Ueberall]

For the record, I still see this with

[2020-07-30T13:22:27+0200] ubuntu at pbuilder:/tmp% apt-cache policy pbuilder
pbuilder:
  Installed: 0.230.4
  Candidate: 0.230.4
  Version table:
 *** 0.230.4 500
        500 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        500 http://archive.ubuntu.com/ubuntu focal/universe i386 Packages
        100 /var/lib/dpkg/status
[2020-07-30T13:23:15+0200] ubuntu at pbuilder:/tmp% grep -B6 "Missing changes file" pbuilder12.log
dpkg-deb: building package 'libzfs2linux' in '../libzfs2linux_0.8.4-1ubuntu10+ubuntu18.04+projektzentrisch.de+1_i386.deb'.
 dpkg-genbuildinfo
 dpkg-genchanges -sa >../zfs-linux_0.8.4-1ubuntu10+ubuntu18.04+projektzentrisch.de+1_i386.changes
dpkg-genchanges: info: including full source code in upload
 dpkg-source --after-build zfs-linux-0.8.4
dpkg-buildpackage: info: full upload (original source is included)
E: Missing changes file: /var/cache/pbuilder/build/19772/build/zfs-linux_0.8.4-1ubuntu10+ubuntu18.04+projektzentrisch.de+1_amd64.changes
[2020-07-30T13:23:19+0200] ubuntu at pbuilder:/tmp%

The use of "--architecture i386" fixes this, but it's still required.

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https://bugs.launchpad.net/bugs/1762890

Title:
  build fails in multi-arch environment (missing changes file)

Status in pbuilder package in Ubuntu:
  Fix Released

Bug description:
  I've recently switched my i386 system to amd64.  My pbuilder and
  cowbuilder chroots are still i386.  This setup fails to build when it
  could and should succeed.

  dpkg-deb: building package `gjots2' in `../gjots2_3.0.1-0rl3_all.deb'.
   dpkg-genchanges  >../gjots2_3.0.1-0rl3_i386.changes
  dpkg-genchanges: including full source code in upload
   dpkg-source --after-build gjots2-3.0.1
  dpkg-buildpackage: full upload (original source is included)
  I: copying local configuration
  E: Missing changes file: /home/rolf/pbuilder/buildplace/19548/build/gjots2_3.0.1-0rl3_amd64.changes
  I: unmounting dev/ptmx filesystem
  I: unmounting dev/pts filesystem
  I: unmounting dev/shm filesystem

  Notice how gjots2_3.0.1-0rl3_i386.changes but the amd64 version is the
  one being looked for.  This fails and thus the build fails.

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