cgpt now supports generating hybrid MBRs and the classic style mbr.bin
from any version of SYSLINUX should work the same with the hybrid MBR.
The other code, gptmbr.bin, changes after SYSLINUX 3. Switching lets me
play with different versions of SYSLINUX without breaking everything.
With this change all images feature a hybrid MBR so the special case for
some VM platforms has been removed.
This doesn't make things go faster and I am suspicious that it makes
things worse. For example /etc/xml/catalog winds up empty from time to
time and I wonder if this locking is related to that.
While attempting to fix the easy to mix up DIGESTS names in feb59db9f I
stumbled across yet another way that the DIGESTS names were a bit
unpredictable: previously a .bz2 got stuck into the file name when
upload_images automatically compressed some file types. The new code
missed this and never added the .bz2. Correct this now, both for
image_to_vm which has a pile of glue to keep the legacy names in place
for now and build_image which I never intended to change.
Vagrant reads this file to determine that we are CoreOS... so lets not
break that just yet. A PR to switch to os-release has been posted:
https://github.com/mitchellh/vagrant/pull/2985
Some day gentoo-release will be dropped but that day is not today.
Make it possible for other scripts to share the same value for our
release repository and equally easy to override with a custom value.
Also allow setting the root from the command line in addition to the
environment. Usually --upload_root is better to use than --upload_path.
Switch from naming DIGESTS based in disk image name to a common prefix.
old: coreos_production_qemu_image.img.DIGESTS ->
new: coreos_production_qemu.DIGESTS
The old behavior wasn't very consistent since plain disk images aren't
used by all types and the code implementing that was easy to brake,
namely by mistake coreos_production_pxe_image.cpio.gz.DIGESTS became
coreos_production_pxe.vmlinuz.DIGESTS a couple releases ago.
The old names will continue to exist as well for the time being to avoid
breaking existing install/download scripts and the original pxe DIGESTS
name is back.
For multi-file uploads we should explicitly declare what the name of the
.DIGESTS file should be instead of using the first file name. Relying on
the ordering was subtle and easy to break.
To avoid having to sync directory creation and tmpfiles installed by
ebuilds just require ebuilds to do `keepdir /etc/path` and this script
will handle the rest. A possible extension would be to update to handle
symlinks in addition to directories in gen_tmpfiles.py
The funky UUID and other special settings should only be applied to
coreos-rootfs and coreos-usr partitions which will never be fscked. When
STATE becomes ROOT in -usr images it gets fsked while mounted read-only
and fsck updates the filesystem's UUID if it is blank. Turns out this
causes disagreement between the kernel and the disk leading to bad
things. A related issue was fixed in a newer version of tune2fs but
unless I missed it the same bugfix didn't make it into e2fsck so
updating wouldn't resolve the issue.
http://e2fsprogs.sourceforge.net/e2fsprogs-release.html#1.42.9
Check if the disk layout is a /usr layout and if so hack the USR-A
partition, not whatever is mounted to /. Also use the new functionality
in disk_util for this as it can look up partitions by label.
The basic infrastructure to support this is now in place. Add a new
board that uses the experimental coreos/amd64/usr profile /usr based
disk layouts. This is just enough to successfully build images, they
aren't bootable yet.
The boot kernel parameters change depending on whether the new /usr
scheme is in use. Pass the disk layout to the bootloader config script
and adjust generated configs accordingly.
Nothing from chromeos-common.sh is needed for image building now. Also
kill off build_common.sh which was just a weird way of sourcing
common.sh. The two piddly functions it provided fit better in
build_image_util.sh
