Further, here is an extract of /var/log/messages for the attempted
reinstall, surpressing the timestamp and dracut indicator.
dracut-046-8.git20180105.fc27
Executing: /usr/bin/dracut
/boot/7725dfc225d14958a625ddaaaea5962b/4.15.9-300.fc27.x86_64/initrd
4.15.9-300.fc27.x86_64
dracut module 'busybox' will not be installed, because command 'busybox'
could not be found!
dracut module 'busybox' will not be installed, because command 'busybox'
could not be found!
*** Including module: bash ***
*** Including module: systemd ***
*** Including module: systemd-initrd ***
*** Including module: nss-softokn ***
*** Including module: i18n ***
*** Including module: network ***
*** Including module: ifcfg ***
*** Including module: drm ***
*** Including module: plymouth ***
*** Including module: dm ***
Skipping udev rule: 64-device-mapper.rules
Skipping udev rule: 60-persistent-storage-dm.rules
Skipping udev rule: 55-dm.rules
*** Including module: kernel-modules ***
*** Including module: kernel-network-modules ***
*** Including module: lvm ***
Skipping udev rule: 64-device-mapper.rules
Skipping udev rule: 56-lvm.rules
Skipping udev rule: 60-persistent-storage-lvm.rules
*** Including module: resume ***
*** Including module: rootfs-block ***
*** Including module: terminfo ***
*** Including module: udev-rules ***
Skipping udev rule: 40-redhat.rules
Skipping udev rule: 50-firmware.rules
Skipping udev rule: 50-udev.rules
Skipping udev rule: 91-permissions.rules
Skipping udev rule: 80-drivers-modprobe.rules
*** Including module: biosdevname ***
*** Including module: dracut-systemd ***
*** Including module: usrmount ***
*** Including module: base ***
*** Including module: fs-lib ***
*** Including module: shutdown ***
*** Including modules done ***
*** Installing kernel module dependencies ***
*** Installing kernel module dependencies done ***
*** Resolving executable dependencies ***
*** Resolving executable dependencies done***
*** Hardlinking files ***
*** Hardlinking files done ***
*** Stripping files ***
*** Stripping files done ***
*** Generating early-microcode cpio image ***
*** Constructing GenuineIntel.bin ****
*** Store current command line parameters ***
*** Creating image file
'/boot/7725dfc225d14958a625ddaaaea5962b/4.15.9-300.fc27.x86_64/initrd' ***
*** Creating initramfs image file
'/boot/7725dfc225d14958a625ddaaaea5962b/4.15.9-300.fc27.x86_64/initrd' done ***
--
Dave Close, Thales InFlyt Experience, Irvine California USA.
cell +1 949 394 2124, dave.close(a)us.thalesgroup.com
"1800: Joseph Marie Jacquard teaches a loom to read punch cards,
creating the first heavily multi-threaded processing unit."