This is needed following the addition of the new boot partition. This
also gives us the opportunity to refactor the logic and use a case
statement instead of ifs
In order to support better support Full Disk Encryption on the clouds,
the boot assets have to sit on an un-encrypted partition. We've tried
mounting the ESP on /boot before but it didn't work as /boot has to
support linking for DPKG to work and the ESP has to be FAT.
In a minimized image, the linux headers are stripped, so when
unminimizing it, we should restore those stripped headers
by installing the linux-virtual package.
The unminimize script previously just restored the system documentation
and translations, man pages, and installed ubuntu-minimal and ubuntu-standard
packages to provide the familiar Ubuntu minimal system. But such an image
never became an equivalent of base image.
Upon investigation and looking at how the base image is constructed -
https://git.launchpad.net/livecd-rootfs/tree/live-build/auto/config#n1108 -
we use the following things:
- minimal task
- standard task
- cloud-image task (which involves ubuntu-server)
- ubuntu-minimal package
- server task if arch != amd64
OTOH, in the unminimize script, we use the following:
(https://git.launchpad.net/livecd-rootfs/tree/live-build/auto/build#n286)
- ubuntu-minimal package
- ubuntu-standard package
So upon running some tests, it was found that if we install ubuntu-server
(with --fix-policy flag), we get the resulting image equivalent to that
of a base image.
cf: https://warthogs.atlassian.net/browse/CPC-3033
The pi images contain redundant copies of cmdline.txt and config.txt in
the boot partition mount-point (which get hidden by the *actual* boot
partition). This commit removes those and simplifies the subarch check
(again, +raspi is the only subarch in use at this point on the Raspberry
Pi images)
/etc/hosts in an installed system comes from one of several places:
- the netbase package which ships a sane default
- scripts/casper-bottom/18hostname, which is mostly identical to the netbase
one but sets a hostname to the flavor name
- the installer which writes one to the target fs
- chroot includes in livecd-rootfs
A chroot include is only needed for images that don't include netbase (so
don't inherit from the minimal seed), don't boot casper, and don't run an
installer.
NONE of these conditions are true for the ubuntu-server live image. And in
addition, the /etc/hosts here differs from the others.
So, remove it.
Gauthier Jolly
Łukasz 'sil2100' Zemczak
Sebastien Bacher
Utkarsh Gupta
Dan Bungert
Steve Langasek
Dave Jones
Michael Hudson-Doyle