I have created a kind of "cheat-sheet" script that fully automates Windows 98 installation.

As c64blitzed would say.. Power PUGing *pew* *pew*
If you have Linux, save time better spent playing DOS or Windows 98 games !

The script will do everything from partitioning to installing a fresh copy of Windows 98 bootable from GRUB.
Buildroot 2026.05 Linux 7.0.11 OS installed along with it (as long as root is a predictable name /dev/sda2).

Just take care when using, carefully check the DEVICE variable inside the script.
Make sure it is NOT pointing to one of your drives. I take no responsibility !

https://archive.org/details/make-win-98-dos-grub-loader

As to why and how is a long story. I always thought GRUB was a "nice to have" as it enables "detection of devices and listing of files" directly from the boot menu. memtest86+ can be placed there too though not a feature in current version.