I'm not real familiar with DOS commands, I moved to linux over a decade ago.
I think you want to format a disk or something and put FAT32 or NTFS. There are a bunch of ways to do this, but I'll try to talk you through using Parted Magic.
1. Boot UBCD
2. Select Parted Magic. If the first menu option works for you, take it. That will put the entire program in memory.
3. You want to double-click on gParted, except I think they call it "Drive Partition" or something. (This is a GUI program, not command line)
4. Using the thing in the upper right hand corner, select your disk. You haven't given me much details, but you can double check you have the right disk if you know what size to expect. Be double damn sure
you get the right one because this program can destroy data.
5. See if you can figure out the reminder, as again you've been thin on details. I don't know what you want to create, if the disk has ever been used before, if this is flash memory or a hard drive, etc. You basicly use the program to delete the old formattng and make the new one, with the option to make more than one partiton of dozens of formatting type. Then you must apply the changes to have them take effect.
This wil overwrite any data already on the disk.
This might help you understand the specifics, now that you know what the keyword to search for is:https://duckduckgo.com/?q=gparted+howto
I am very new here.
What do I have to do to get the exact same result with an UBCD like using "fdisk /mbr" from Microsoft?
Thanks in advance,