you could preseed your installer to install the kernel in the PPA. I
have not tested the instructions below.. but should give you an idea how
to preseed. From your comment above looks like you might not have a
booting system to be able to install the new kernel etc.
Assuming you are using a netboot install.
-- tell installer grub to use preseed --
Edit ubuntu-installer/ppc64el/grub/grub.cfg and add your preseed file. Like for
example:
menuentry 'Install' {
set background_color=black
linux /ubuntu-installer/ppc64el/linux auto=true priority=critical
url=http://<web server>/preseed/preseed.ppc64el --- quiet
initrd /ubuntu-installer/ppc64el/initrd.gz
}
-- preseed example --
You can use late-commands in your preseed file to install the PPA kernel like:
# Install kernel from PPA
d-i preseed/late_command string in-target add-apt-repository -y
ppa:ubuntu-power-triage/lp1770003
d-i preseed/late_command string in-target apt update
d-i preseed/late_command string in-target apt install -y
linux-image-unsigned-4.15.0-20-generic linux-modules-extra-4.15.0-20-generic
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https://bugs.launchpad.net/bugs/1767194
Title:
[SRU][Bionic][Thunderx2] kernel panic when connecting a PLX bridge
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