The install test's key sits in the user's home, which is its own
subvolume and not part of the factory snapshot, and the seal removes it
there. The check says so of every image, instead of leaving it to the
layout staying as it is.
As they were tested by hand on the 4.0.4 ISO, before any of it is wired
into a workflow:
vm-install unattended install of an ISO into a qcow2, through cidata
vm-seal makes the disk publishable: SSH takes keys only, no machine
ID, host keys, build key or build logs left, compressed
with zstd, with checksums and the kernel pulled out for
direct boot
vm-verify boots the sealed image once and checks all of that
vm-boot boots a throwaway copy with a key made for that boot and
runs a command in it
On this machine: install 114 s, seal 27 s, a 4.2 GB image, SSH about 5 s
after power-on, 17 of 17 verify checks, and 7 of them failing on an
image sealed without these fixes.
Emir Beganovic