[buildd-tools-devel] Bug#868657: sbuild tries to create /build even when told otherwise

[Ian Jackson]

Package: sbuild
Version: 0.73.0-4

I am trying to do a strange thing: use sbuild with adt-virt-null,
without being root.  I have discovered that sbuild insists on trying
to create /build even if an alternative --build-path is specified:

+ BUILD_PATH=/home/ian/things/Dgit/dgit/tests/tmp/sbuild-adt-null/sbuild-build-path
+ sbuild --chroot-mode=autopkgtest --autopkgtest-virt-server=/usr/bin/fakeroot --autopkgtest-virt-server-opt=adt-virt-null -D --build-path=/home/ian/things/Dgit/dgit/tests/tmp/sbuild-adt-null/sbuild-build-path '--dpkg-source-opts=-Zgzip -z1 --format=1.0 -sn'
...
I: env sh -c cd / && exec "$@" exec /bin/sh -c set -e; if [ ! -d /build ] ; then mkdir -m 0775 /build; fi
D: Setting Log Stream Error=1
D: Running command: env sh -c cd / && exec "$@" exec /bin/sh -c set -e; if [ ! -d /build ] ; then mkdir -m 0775 /build; fi
mkdir: cannot create directory '/build': Permission denied
E: Failed to create build directory /build
Failed to set up chroot

(I expect that when I get past this I will have to prevent it from
running apt.)

Full repro:
 $ git clone git://git.chiark.greenend.org.uk/~ianmdlvl/dgit.git
 $ cd dgit
 $ git checkout 904c4128a89555d5caecb100943da23fffd7ee98
 $ tests/using-intree tests/tests/sbuild-adt-null 2>&1 |tee ../log

You will find that this hangs.  That is due to a bug in adt-virt-null,
#868576.  However, you can look at the logfile;
 ^Z
 $ less tests/tmp/sbuild-adt-null/example_1.1-1_amd64.build

Observe in that log the error messages I quote above.
The file ../log (from tee) will contain the output from the dgit test
machinery, which includes much noise, but I don't think is relevant.

Ian.

-- 
Ian Jackson <ijackson at chiark.greenend.org.uk>   These opinions are my own.

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