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distro/rhel85: add simplified edge installer

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This adds a new installer called the "Simplified Installer" for Edge.
In contrast to the existing insaller, which is based on Anaconda, this
new installer based on the CoreOS installer project[1], a small rust
based binary that is executed in the initramfs and will flash a raw
image to a specified installation device. For this a new blueprint
option is introduced. The raw image is created from an existing OSTree
commit and embedded into the resulting bootable iso. When booting the
iso the installation will automatically start witout any interaction
from the user.
NB: As with the existing edge installer, support is currently limited
to x86. The new installer also does not support non-uefi boot.

[1] https://github.com/coreos/coreos-installer

Co-Developed-by: Achilleas Koutsou <achilleas@koutsou.net>
Co-Developed-by: Antonio Murdaca <runcom@linux.com>
This commit is contained in:
Christian Kellner 2021-08-26 16:20:47 +02:00 • committed by Tom Gundersen
parent 3877d63c82
commit 4e80c1bc82
9 changed files with 512 additions and 40 deletions
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# Add a new Simplified Installer for RHEL for Edge 8.5
OSBuild Composer can now build the RHEL 8.5 for Edge Simplified Installer.
This installer is optimized for unattended installation to a device, which
can be specified via a new blueprint option, `installation_device`. As for
the existing RHEL for Edge installer, an existing OSTree commit needs to
be provided. A raw image will be created with that commit deployed in it
and the installer will flash this raw image to the specified installation
device.
The following image new types are supported: edge-simplified-installer.
Relevant PR: https://github.com/osbuild/osbuild-composer/pull/1654