cobbler-ubuntu-import does not import LTS enablement stack images

[Emil Sit]

https://wiki.ubuntu.com/Kernel/LTSEnablementStack describes that new Ubuntu installs for 12.04.2 etc default to using the enablement stacks containing newer kernels and hardware support from Quantal (and Raring).

The netboot images for these are located in a sub-directory such as quantal-netboot (instead of just netboot). For example, http://archive.ubuntu.com/ubuntu/dists/precise-updates/main/installer-amd64/current/images/quantal-netboot/. Presumably when 12.04.3 is released, it should use raring-netboot.

I'm not sure whether the script should default to using the latest LTS Enablement Stack (arguably yes); if so then the update_available check should probably be switched to check for the latest LTS netboot image. Or perhaps a symlink should be created (like lts-netboot) so that this script doesn't need to be updated for every point release.

Attached is a patch that makes it an unconfigurable default.

If it seems better not to have it default to the new stacks, it should probably be an option for those who want it.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "Hack to enable LTS checking" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Scott Moser (smoser)]

In the future, we plan to have simplestreams data to describe kernels available.
this is part of the work for maas this cycle.
https://code.launchpad.net/~smoser/maas/netinst2ss is some code i put together to scrape archive.ubuntu.com and put it into simplestreams format.

for the moment, the hack above is probably the best we can really do. You could make it at least reasonable by using distro-info to figure out that precise would have kernels for precise, quantal, raring, saucy.