Multipass on Mac OS X requires standalone kernel and initrd artifacts
to boot.
Also call update-initramfs on all installed kernels. We only have one
kernel installed, so we don't need to specify an explicit version.
In the buildd image chroot, /etc/resolv.conf is a symbolic link to
a configuration file in the /run directory. A call to truncate will
modify that file, which we should not do. Instead, we want to remove
the symbolic link and replace it with an empty file.
Instead of injecting an empty resolv.conf with an includes.chroot, we'll
inject it in late with a hook. The empty resolv.conf breaks DNS early in
the build, and causes some binary hooks to fail
Revert exclusion of makedev from buildd chroots, as it turned out not to
be the problem. Instead, fix up /dev/ptmx to be a character device node
rather than a symlink to /dev/pts/ptmx, in line with the discussion in
https://bugs.debian.org/817236; I think this is safer than
cherry-picking the fix to debootstrap at this point in a stable release
cycle.
LP: #1844504
Installing policyrcd-script-zg2 doesn't quite do this because of the way
that live-build installs its own temporary version of policy-rc.d. The
only remotely sensible way I can see to deal with this is to create the
symlink manually.
