We don't need the default root filesystem fsck and remount targets
provided by systemd since root is read only. The only default one what
was included in this way was tmp.mount but that is now covered by
a dependency in the coreos-init package.
This is particularly important for the image availability pre-check
because without it we don't detect that the image is in-fact unavailable
when it doesn't exist and the 404 results in a error from bzip2.
This doesn't currently have any real impact but seems like a better
ordering since update scripts may need to emerge things.
Add some friendly version info logging.
The old chroot version system we inherited from Chromium OS always
assumes that a newly unpacked tarball is the latest and greatest but
since we version the SDK in the same way as target builds we can use
that version for these sorts of upgrade scripts and not make assumptions
about how late and great the starting tarball was.
The first upgrade script simply aborts to force the user to recreate
their chroot when moving from python 2.6 to 2.7.
I want to start including version info in SDK builds as an alternative
scheme to the existing "chroot_version_hooks" system which always
assumes freshly unpacked SDKs are the latest regardless of what version
they actually were.
The recommended command using the config file was triggering a massive
memory leak in qemu because it was adding both the default virtual
hardware nic as well as the virtio nic. This could be worked around by
adding something like -net none or moving all the -net commands from the
file to the command line but eh. Clearly qemu config files are used and
tested by nobody else so lets just use a trusty script instead.
Vagrant will need the virtualbox ovf plus its own Vagrantfile config.
After this we will need an optional "package" step to this script to
take these files and bundle them into a .box tarball. This could also be
used to switch from .ovf+vmdk for plain virtualbox images to a bundled
.ova archive which combines the two.
Trying to include version info by adding the directory name to VM image
names didn't work and a better solution is for build_image to write out
a version.txt file. This should also fix an issue where uploading from
image_to_vm.sh didn't always go to the same location as the images
uploaded from build_image did.
As of Linux 3.2 loopback supports discard by punching holes in the
underlying file. This doesn't actually seem to impact things right now
since we are writing to fresh filesystems but might as well do this to
prevent wasted space from sneaking in later on.
