Bug#624530: pbuilder: cannot cross build i386 only package on amd64 host

Ian Campbell ijc at hellion.org.uk
Fri Apr 29 10:23:00 UTC 2011


Package: pbuilder
Version: 0.199+nmu3
Severity: wishlist

Cross building an i386 package on amd64 in general works fine but in the case
of linux-kernel-di-i386-2.6, which is Arch: i386 only, it is failing because
the check in /usr/lib/pbuilder/pbuilder-buildpackage-funcs:checkarchitecture()
fails:
"E: amd64 not in arch list or does not match any arch wildcards: i386"

This is because "dpkg-architecture -qDEB_HOST_ARCH" has returned amd64,
presumably because it runs in the host environment and not the chroot
environment.

I can workaround this by adding "export DEB_HOST_ARCH=i386" to ~/.pbuilderrc
but I cannot find e.g. an environment variable which would allow me to force
the correct arch automatically depending on the pbuilder command line (in
particular --architecture). Passing such a thing through would be quite useful.

Actually, just as I wrote the above it occurred that I can use:
    export DEB_HOST_ARCH=$(uname -m | sed -e s/i.86/i386/ -e s/x86_64/amd64/)
in .pbuilderrc, since I use linux32 to invoke cross builds. Although this works
it would be nice if pbuilder took care of it automatically.

I suppose this related to #363088 but I didn't see this specific issue
discussed there so I've filed it separately.

BTW, I actually use cowbuilder but I tried pbuilder too and I think they are
equivalent in this matter.

Thanks,
Ian.

-- System Information:
Debian Release: wheezy/sid
  APT prefers oldstable
  APT policy: (500, 'oldstable'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-xen-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages pbuilder depends on:
ii  cdebconf [debconf-2.0]        0.155      Debian Configuration Management Sy
ii  cdebootstrap                  0.5.7      Bootstrap a Debian system
ii  coreutils                     8.5-1      GNU core utilities
ii  debconf [debconf-2.0]         1.5.38     Debian configuration management sy
ii  debianutils                   3.4.4      Miscellaneous utilities specific t
ii  debootstrap                   1.0.30     Bootstrap a basic Debian system
ii  wget                          1.12-3.1   retrieves files from the web

Versions of packages pbuilder recommends:
ii  devscripts                    2.10.72    scripts to make the life of a Debi
ii  fakeroot                      1.15.1-1   tool for simulating superuser priv
ii  sudo                          1.7.4p6-1  Provide limited super user privile

Versions of packages pbuilder suggests:
ii  cowdancer                     0.62+nmu2  Copy-on-write directory tree utili
pn  gdebi-core                    <none>     (no description available)
pn  pbuilder-uml                  <none>     (no description available)

-- Configuration Files:
/etc/pbuilderrc changed:
BASETGZ=/var/cache/pbuilder/base.tgz
BUILDPLACE=/var/cache/pbuilder/build/
MIRRORSITE=http://hopkins/debian/
USEPROC=yes
USEDEVPTS=yes
USEDEVFS=no
BUILDRESULT=/var/cache/pbuilder/result/
COMPONENTS="main"
APTCACHE="/var/cache/pbuilder/aptcache/"
APTCACHEHARDLINK="yes"
REMOVEPACKAGES="lilo"
HOOKDIR=""
export DEBIAN_FRONTEND="noninteractive"
DEBEMAIL=""
BUILDSOURCEROOTCMD="fakeroot"
PBUILDERROOTCMD="sudo"
PBUILDERSATISFYDEPENDSCMD="/usr/lib/pbuilder/pbuilder-satisfydepends"
PDEBUILD_PBUILDER=cowbuilder
DEBBUILDOPTS=""
APTCONFDIR=""
BUILDUSERID=1234
BUILDUSERNAME=pbuilder
BINDMOUNTS=""
DEBOOTSTRAPOPTS[0]='--variant=buildd'
export PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin"
export SHELL=/bin/bash
DEBOOTSTRAP="cdebootstrap"
PKGNAME_LOGFILE_EXTENTION="_$(dpkg --print-architecture).build"
PKGNAME_LOGFILE=""


-- debconf information:
  pbuilder/nomirror:
  pbuilder/mirrorsite: http://cdn.debian.net/debian
  pbuilder/rewrite: false





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