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.
This branch changes the behavior for default users on the vagrant image,
according to much of https://www.vagrantup.com/docs/boxes/base.html
Specifically, this adds a new "vagrant" user with a know password on top
of the already existing ubuntu user.
This conforms to the expectations of the Vagrant community, despite some
security concerns. Vagrant images are not used for production systems but
for development environments, and the absence of the "standard" vagrant user
has been hurting ubuntu adoption on that platform.
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
lp:~rbalint/livecd-rootfs/livecd-rootfs-autopkgtest-fix to wrap kpartx
and trap spurious errors, since the problem is still being seen
intermittently on i386 despite us calling sync before kpartx.