Hi tred,
Please describe what you are doing in greater detail. What computer, specs please? Does it have Windows installed? Does it currently boot using the UEFI mechanism? By "create a Puppy frugal install" do you mean by using Frugalpup-Installer sometimes referred to as just frugalpup, or some other boot-loader-creator? perhaps Menu>Setup>Puppy Installer?
If I read the following instructions regarding frugalpup-installer here correctly, http://www.fishprogs.software/puppy/fru ... index.html all the different mechanisms provided by it require that the boot-loader be written to a partition formatted as fat32. Hence the error you get:
'DiskPup and FrugalPup require an install partition and a boot partition to be available, before they can be used....
Boot partition:
The bootloader, "Grub2" (approximately 10MiB), is installed in this small bootable "fat32" partition.'
As you've specified an ntfs formatted partition --correct me if I'm wrong-- that suggests you are trying to dual-boot Puppys from a hard-drive on which Windows is still present; and place the boot-loader on the partition where Windows located its boot-loader. Only Windows places a boot-loader on an ntfs partition.
You have a couple of choices. The easiest is to install LICK into your Windows OS and run it. Links to LICK and information about it can be found here, https://forum.puppylinux.com/viewtopic.php?p=1587#p1587.
Not wanting to over-write Windows boot-loader, what I sometimes do is reconfigure a computer's boot-sequence so that priority is assigned to USB-Keys (before hard-drives). I then use a dedicated USB-Key to hold the boot-loader. The USB-Key is usually plugged in so that its boot-loader offers the choice of Puppys (including those located on the hard-drive). Unplugged, Windows boots via its untouched boot-loader.
Another choice is to reformat the hard-drive's boot-partition to Fat32 and use either Frugalpup-installer or grub2config. I've never used Frugalpup-installer in that situation. I've always used grub2config and never experienced grub2config failing to provide a boot-menu offering Windows, any and all Puppys and all other Linux operating systems on hard-drives. But see the warning on grub2config's download link, viewtopic.php?t=3360 regarding "When you clean install Ubuntu Linux and/or derivatives on a legacy BIOS PC". That, of course, is not your situation.
But as I wrote, LICK is probably your easiest, safest option. Lick writes what essentially is a version of grub2 to the boot-partition. Once installed, you can manually edit the grub.cfg file (menu) to add other Puppys as choices to boot up.