- Usually, netplan's systemd-generator enables systemd-networkd and
systemd-networkd-wait-online on boot. But netplan configuration is not
yet generated at that point by cloud-init. Cloud-init generates in the
network-pre.target and expects the network.target /
network-online.target to work. These are already part of the ongoing
systemd transaction, thus cannot be injected into the boot-sequency by
cloud-init local mode. Therefore make sure cloud images include
networkd in the initial boot transaction.
- src:systemd will shortly not enable networkd unconditionally by
default.
* Drop ifupdown e-n-i configuration files, no longer used.
unmount them, instead of working from a hard-coded list. This makes
the code resilient against other submounts being added later, including
downstream.
* Also nuke the sleep / udevadm settle calls in the process, which should
never be required and slow down the builds.
* live-build/ubuntu-cpc/functions: Add a function, teardown_mountpoint,
to reverse the work done in setup_mountpoint. Lack of this function
has forced users of setup_mountpoint to implement this separately
and the implementations have diverged. (LP: #1716992)
* live-build/ubuntu-cpc/functions: Remove umount_settle function.
The was only used where teardown_mountpoint was lacking.
we don't have to leave empty space in our derivative images for packages
that have been downloaded/installed/removed. This normally isn't
relevant for the installed system, since the root filesystem will
auto-expand in place on the target disk, but lets us ship smaller
images.
* live-build/functions: also call 'apt-get update' after mounting the
blank /var/lib/apt.
Test showed very little difference in file-size between -0 and -9 while
both compression and decompression need much less memory and compression
needs less CPU time for -0.
Supported xz versions before 5.2 also accept the -T4 option but ignore it.
Also depend on xz-utils instead of on pxz.
LP: #1701132
