[Bug 1791437] Re: Can't use pbuilder inside simple lxc container?

[Mattia Rizzolo]

That's your lxc configuration that doesn't allow mknode(2), so you can't
run debootstrap within it.   So it'd say your environment is too
restrictive to do what you want to do.

** Changed in: pbuilder (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1791437

Title:
  Can't use pbuilder inside simple lxc container?

Status in pbuilder package in Ubuntu:
  Invalid

Bug description:
  On Ubuntu 18.04, I was trying to reproduce a problem, so I spun up an
  lxc container and ran my reproduce script in it, i.e.

  #!/bin/sh
  set -ex
  sudo apt install dh-make-golang
  DIST=bionic git-pbuilder create
  dh-make-golang github.com/gomatic/renderizer
  cd renderizer/
  gbp buildpackage --git-dist=bionic --git-pbuilder

  This failed with

  + DIST=bionic git-pbuilder create
  I: Invoking pbuilder
  I: forking: pbuilder create --buildplace /var/cache/pbuilder/base-bionic.cow --mirror http://archive.ubuntu.com/ubuntu --distribution bionic --no-targz --extrapackages cowdancer
  W: /home/ubuntu/.pbuilderrc does not exist
  I: Running in no-targz mode
  I: Distribution is bionic.
  I: Current time: Sat Sep  8 14:40:20 UTC 2018
  I: pbuilder-time-stamp: 1536417620
  I: Building the build environment
  I: running debootstrap
  /usr/sbin/debootstrap
  mknod: /var/cache/pbuilder/base-bionic.cow/test-dev-null: Operation not permitted
  E: Cannot install into target '/var/cache/pbuilder/base-bionic.cow' mounted with noexec or nodev

  Sad face.  Not sure who's at fault here, is it me, debootstrap,
  pbuilder, or gbp?

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: pbuilder 0.229.1
  ProcVersionSignature: User Name 4.15.0-33.36-generic 4.15.18
  Uname: Linux 4.15.0-33-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  Date: Sat Sep  8 14:47:59 2018
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: pbuilder
  UpgradeStatus: No upgrade log present (probably fresh install)

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