Apple II

As far as I remember things, ProDOS runs the first system file that it finds in sequence after the initial ProDOS bootstrap. Is there any way to change what it loads short of re-making a disk and choosing what was copied to the first blocks? 

What I want to accomplish, is to create a bootloader utility on an existing HDD volume, that lists the devices and slots; with an option to boot into GS/OS or to boot from another slot entirely. 

I have a few technical issues with my Floppy EMu, and I am beginning to think that I will need an alternative emulation card, although IDK if any solution is perfect.

Most notable is that when I try to load the ProDOS 2.4.2 or 2.5a disk images, it errors that the file is not contiguous. This seems absurd. Do any of you know what is happening there?

I also noted that almost every game .dsk image refuses to load. 

Has anyone successfully used a 32MB FCF card with a Vulcan //e (1.2, E40) card? I have two Vulcan cards: One is reaseved for a //gs, and will eentually get a GOLD ROM; the other is a //e 40MB card. 

Will  ulcan utilities properly partition and format a 32MB CF card on one of these, or will it lose its mind when it tries to determine head/sector counts?

Ere anyone asks, I only wish to do this because I already have the devices, and they are authentic to the system era. I am perfectly aware of newer devices, and I have SCSI cards, too. 

Bought some floppy drives several months ago and these have been sitting in the shipping box until today.

It's half height drives (1 x MITAC AD-3C and 2 x LASER FD 100). I quite like and prefer these type of slim drives both because of the physical size but also that normally these drives are quite noisy when moving the heads which I prefer.