I made this for use with my old laptops, thought I'd share it with y'all.

MS-DOS 6.22 Master Boot Disk made by me that lets you boot into DOS with various CD-ROM Drivers, including IDE, E-IDE, and Serial ATA. It also lets you boot into DOS with various USB Mass Storage Drivers.

Also includes the utilities MI.COM for better memory information, REBOOT.COM made my me for quick rebooting, and SHUTDOWN.COM by Blacklight, shutdown and restart utility.

There is also a boot option to install said utilities, along with mouse and cdrom drivers to a fresh msdos install.

https://archive.org/details/dos-622-masterboot