reg_linux_diskfull_installation_flat fails on ubuntu-22-ppc64le-devel and
ubuntu-24-ppc64le-devel in build #121 of xcat-core-devel-ubuntu-cd. The node
answers ping but the case ends on
"root@xcat25-cn: Permission denied (publickey,password)" and the node status
never leaves powering-on.
The serial console shows why: the Subiquity installer starts, runs the
early-commands, errors, tars /var/log/installer to port 8080 and reboots. Nine
cycles in 75 minutes. The installed system never exists, so the address belongs
to the live installer and it refuses the root key.
Two causes, both POWER-only.
mkinstall picks pre.ubuntu.subiquity, then overwrites that choice with
pre.ubuntu.ppc64 for every ppc64 node. That script writes a partman recipe;
the early-commands append it to /autoinstall.yaml, which Subiquity then cannot
parse.
pre.ubuntu.subiquity has a UEFI branch and a BIOS branch and nothing else, so a
ppc64el node takes the BIOS branch and is given a bios_grub partition. POWER
firmware boots from a PReP partition.
debian_install_prescript.t drives the script choice, which mkinstall keeps
inline, so it bails out. ubuntu_subiquity_storage.t gains a PReP case; its
extracted block asks uname for the machine architecture, which the block does
not do yet.
Signed-off-by: Daniel Hilst <392820+dhilst@users.noreply.github.com>
Daniel Hilst