Comment 2 for bug 1700806

The test doesn't even get past the setup function.

The setup function is quite basic. Create an image, partition the image, create filesystem on the image.

https://git.launchpad.net/~ubuntu-core-dev/+git/systemd/tree/test/test-functions?h=ubuntu-artful#n333

It appears that the kernel has failed to re-read the partition table, as /dev/loop4p1 is expected to exist.

Is sfdisk not sufficient to re-read the parition table?! i wonder if between calling sfdisk and mkfs, and udevadm wait for idle state is needed.