heres the diagnosis of the failure here:
a.) the powerVM system was successfully booting and installing xenial,
but was failing to bring up networking on the installed system.
b.) curtin had written (as designed) /etc/udev/rules.d/70-persistent-net.rules
containing a line like:
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="40:f2:e9:5d:be:68", NAME="eth0"
c.) curtin had written an /etc/network/interfaces file like:
auto eth0
iface eth0 inet dhcp
d.) the cert team had curtin configuration (late_commands) that was writing
/etc/network/interfaces in the target with "dhcp on everything". In order to
do this, they read the device names from the install environment via
/sys/class/net/ . This resulted in /etc/network/interfaces like:
auto enP2p1s0f0
iface enP2p1s0f0 inet dhcp
When the system booted, networking failed to come up because there was no
device named 'enP2p1s0f0', as 70-persistent rules named it 'eth0'.
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https://bugs.launchpad.net/bugs/1563055
Title:
IBM ppc64le MAAS images booting with no network
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