Description of problem:

When upgrading a system to RHEL8 using leapp, a *kernel-workaround* package is installed that ships an empty /usr/sbin/new-kernel-pkg script.
If the customer is not* using BLS (by not adding GRUB_ENABLE_BLSCFG=true in /etc/default/grub, likely because the customer uses Puppet with outdated templates from RHEL7), this ends up not generating the initramfs when updating kernels.

Exact reason is on line 80 in /usr/lib/kernel/install.d/20-grub.install:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
80 if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]] || [[ ! -f /sbin/new-kernel-pkg ]]; then
81 eval "$(grub2-get-kernel-settings)" || true
82 [[ -d "$BLS_DIR" ]] || mkdir -m 0700 -p "$BLS_DIR"
:
138 /sbin/new-kernel-pkg --package "kernel${flavor}" --install "$KERNEL_VERSION" || exit $?
139 /sbin/new-kernel-pkg --package "kernel${flavor}" --mkinitrd --dracut --depmod --update "$KERNEL_VERSION" | | exit $?
140 /sbin/new-kernel-pkg --package "kernel${flavor}" --rpmposttrans "$KERNEL_VERSION" || exit $?
141 # If grubby is used there's no need to run other installation plugins
142 exit 77
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

Above, the code block on lines 81+ is not entered because of the lack of "GRUB_ENABLE_BLSCFG" in /etc/default/grub and the presence of /sbin/new-kernel-pkg shipped by *kernel-workaround*.

It then goes to line 138-140 which do nothing since the script is an empty script.

Version-Release number of selected component (if applicable):

leapp-repository-0.13.0-2.el7_9.noarch