sed -ri '/^\s*deb/{/universe/!s/$/ universe/}' /etc/apt/sources.list
fi
if ! type -p pxe-kexec >/dev/null 2>&1; then
- apt-get update
+ apt-get update ||: # try even if we fail
apt-get install -y debconf
debconf-set-selections <<EOF
kexec-tools kexec-tools/load_kexec boolean false