This avoids the need to dd individual filesystem images into a complete
disk image, just mount the partitions directly from a loop device
covering the whole image. This does add the requirement that mkfs run as
root but that isn't a problem.
These are just cluttering things and adding an element of "how does this
work?" because base_image_util was defaulting to the "usb" layout in
some places and "base" in others.
This change removes /usr/sbin/write_gpt.sh from images which we have no
use for. This allows us to drop the indirection of writing partition
tables by first writing out a script to call. Now cgpt.py can call cgpt
directly to initialize the partition layout. This opens the way for
further improvements to how disk images are created.
This currently does nothing because our state partition is not partition
number 1. Even if it did we don't really needed it since we rely on
expanding on boot instead.
Remove --verity_*: Unused, we don't support verity
Remove --usb_disk: Unused, we use PARTUUID now.
Remove --enable_serial: Unused, and serial is enabled for syslinux
Right now the initial (pre image_to_vm) images oversize the root
partitions, creating the expected 1GB filesystem in a 2GB partition.
image_to_vm later shrinks the partition back down to match. Just start
out with 1GB partitions to begin with instead.
This one is more automagical and sets up ssh keys from ssh-agent and the
user's home directory by default. Also adds an option for setting the
ssh port so it can be something other than 2222. Script should be
sufficiently portable, tested in bash, dash, and ash.
Useful for qemu -nographic or any any other situation where serial is
easier to get at than VGA. It may be possible that in some setups ttyS0
isn't appropriate but we can figure out a way to customize kernel
options if/when that ever comes up.
Remove unused dev/dm-0 vs dm-1 logic from verity and the associated
rootwait option it required (meaningless with our initrd). Move old
cros_legacy to common instead of using it in every command line option.
We should remove it entirely soon since it isn't useful for us. Remove
unneeded intel graphics modeset option.
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.
Enable sparse files for all dd and cp commands and replace some dd
commands that are really better off being truncate commands.
While in the neighborhood there were a number of useless sudo commands
for things that just happen to be in sbin. Call them directly instead.
Its single use is in build_common and even then having a little progress
bar for copying images isn't that interesting, they just get lost in the
noise of the emerge output. Keep it simple, use cp.
/mnt/stateful_partition was already a little unruly with
/mnt/stateful_partition/home and /mnt/stateful_partition/var_overlay
serving similar functional purposes.
Then we needed to also add /opt and /srv overlays.
I also have wanted to get rid of the ugly and weird
/mnt/stateful_partition name so lets just have one big move.
/mnt/stateful_partition -> /media/state
/mnt/stateful_partition/var_overlay -> /media/overlays/var
/mnt/stateful_partition/home -> /media/overlays/home
From there we add /media/overlays/srv and /media/overlays/opt
The basic system directory structure including the lib symlinks were
fixed for sysroot in the following commits but the image build uses an
entirely different bit of code to do the exact same set of hacks. Port
those changes to the image building code to hopefully make all happy.
2ae0c30f4eac931bd088
Add --production_track argument to set_lsb_release and
cros_make_image_bootable to support using the production update service
on developer builds of the 'prod' image. This replaces the previous hack
of setting COREOS_OFFICIAL=1 in the middle of the build.
Since lsb-release doesn't exist prior to the first call to
set_lsb_release switch to sudo_clobber instead of append. That way if it
is called a second time later the contents aren't duplicated.
Write the info to gentoo-release and os-release as well so everything
gets the same information.
Last minute bug slipped in because of a line I commented out since the
current coreos kernel doesn't support virtio block devices (that change
coming soon). Qemu doesn't tolerate any spaces before # in comments.
The old script was heading towards spaghetti code realm. This breaks up
all the image variations such as hybrid MBR, OEM packages, etc into
configuration options and small functions that actually do the work.
All this is in the new vm_image_util.sh library but the command line
parsing and overall procedure remains in image_to_vm.sh
As part of this we gain support for putting some qemu options in a
config file as well as Xen virtual machines using pygrub and pvgrub.
Lots of generally unused options have been removed to simplify things
and keep output file names consistent.
