ubuntu-vm-bilder doesn't create a VM image from iso image

[srini]

ubuntu-vm-builder calls debootstrap to create a basic system of <suite> into <TARGET> from MIRROR. MIRROR can be http:// URL or a file:/// URL which ubuntu-vm-builder uses.

http:/// URL works properly, but when an iso image is mounted and given as file:/// URL, an error is returned.

It would be nice to fix the iso option for vm-build as it would be a lot faster. It appears debootstrap needs a script to facilitate that.

$ sudo ubuntu-vm-builder xen precise --tmpfs=- --flavour=virtual --iso=/home/cloud/Downloads/precise-dvd-amd64.iso -a amd64
2012-04-01 19:03:09,164 INFO : Mounting tmpfs under /tmp/tmpim_TZ5tmpfs
2012-04-01 19:03:09,170 INFO : Calling hook: preflight_check
2012-04-01 19:03:09,172 INFO : Calling hook: set_defaults
2012-04-01 19:03:09,173 INFO : Calling hook: bootstrap
2012-04-01 19:03:09,363 INFO : Cleaning up
2012-04-01 19:03:09,392 ERROR : Process (['/usr/sbin/debootstrap', '--arch=amd64', 'precise', '/tmp/tmpim_TZ5tmpfs', 'file:///tmp/tmppNpSWc']) returned 1. stdout: I: Retrieving Release
I: Retrieving Release.gpg
I: Checking Release signature
I: Valid Release signature (key id C5986B4F1257FFA86632CBA746181433FBB75451)
I: Retrieving Packages
I: Validating Packages
I: Resolving dependencies of required packages...
I: Resolving dependencies of base packages...
I: Chosen extractor for .deb packages: dpkg-deb
W: Failure trying to run: chroot /tmp/tmpim_TZ5tmpfs mount -t proc proc /proc
, stderr:
2012-04-01 19:03:09,392 INFO : Unmounting tmpfs from /tmp/tmpim_TZ5tmpfs
Traceback (most recent call last):
  File "/usr/bin/ubuntu-vm-builder", line 24, in <module>
    uvb.main()
  File "/usr/lib/python2.7/dist-packages/VMBuilder/contrib/cli.py", line 216, in main
    distro.build_chroot()
  File "/usr/lib/python2.7/dist-packages/VMBuilder/distro.py", line 83, in build_chroot
    self.call_hooks('bootstrap')
  File "/usr/lib/python2.7/dist-packages/VMBuilder/distro.py", line 67, in call_hooks
    call_hooks(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/VMBuilder/util.py", line 165, in call_hooks
    getattr(context, func, log_no_such_method)(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/VMBuilder/plugins/ubuntu/distro.py", line 136, in bootstrap
    self.suite.debootstrap()
  File "/usr/lib/python2.7/dist-packages/VMBuilder/plugins/ubuntu/dapper.py", line 269, in debootstrap
    run_cmd(*cmd, **kwargs)
  File "/usr/lib/python2.7/dist-packages/VMBuilder/util.py", line 120, in run_cmd
    raise VMBuilderException, "Process (%s) returned %d. stdout: %s, stderr: %s" % (args.__repr__(), status, mystdout.buf, mystderr.buf)
VMBuilder.exception.VMBuilderException: Process (['/usr/sbin/debootstrap', '--arch=amd64', 'precise', '/tmp/tmpim_TZ5tmpfs', 'file:///tmp/tmppNpSWc']) returned 1. stdout: I: Retrieving Release
I: Retrieving Release.gpg
I: Checking Release signature
I: Valid Release signature (key id C5986B4F1257FFA86632CBA746181433FBB75451)
I: Retrieving Packages
I: Validating Packages
I: Resolving dependencies of required packages...
I: Resolving dependencies of base packages...
I: Chosen extractor for .deb packages: dpkg-deb
W: Failure trying to run: chroot /tmp/tmpim_TZ5tmpfs mount -t proc proc /proc
, stderr:

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubuntu-vm-builder 0.12.4+bzr477-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
Uname: Linux 3.2.0-21-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.0-0ubuntu2
Architecture: amd64
Date: Sun Apr 1 18:49:41 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120306)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: vm-builder
UpgradeStatus: No upgrade log present (probably fresh install)