When installing Red Hat Enterprise Linux 9, you may choose to apply a security profile, such as ANSSI-BP-028 High.
I've recently seen two VMware-virtualized RHEL 9.2 servers not being able to boot properly when installed with the ANSSI-BP-028 High profile. Instead, they booted into emergency mode.
The way to fix it:
Add file /etc/modules-load.d/for_uefi.conf containing a single line:
vfat
Then run the following two commands:
dracut -f /boot/initramfs-$(uname -r).img $(uname -r)
reboot
