A2091 + KS1.3 + WB1.3 Floppy = Frustration

[Oldsmobile_Mike]

It's asking for your LIBS: directory.  Every Amiga should have one, pretty much needs one to be able to boot.  Do you have that path properly assigned somewhere?

(attached screenshots might help, obviously your path would be somewhat different)

[Oldsmobile_Mike]

As a side thought - are you sure your floppy drive is working correctly?  I.e., you activate the 1.3 ROM and try to boot with a floppy in the drive, and it gives you that error every time?  Can you try booting from a game disk and see if that works?

[Oldsmobile_Mike]

I also added half a dozen game floppies, which boot fine in other systems, to the list of those that give this error.

If there's a floppy in the disk drive, the Amiga is supposed to boot from it first, every single time.  So unless you've got something really wacky going on with your hard drive controller, that 1.3/3.1 ROM switch, or your boot sequence, I'm going to go with "bad floppy drive" on this one.  Sounds like the system is trying to boot off the floppy, then "loosing it", and going to the hard drive in mid-boot.

Could just be dirty or a loose ribbon cable.

Disconnect the hard drive and see what happens then.  Also try it without the switcher, just the 1.3 ROM plugged into the socket.  Eliminate components until it works correctly, then re-add them one-by-one until the problem occurs again.  Troubleshooting 101.

But I'm still betting on a bad floppy drive.  

[Oldsmobile_Mike]

Sometime when you have a chance, check the boot priority on the old hard drive like Matt_H said.  Out of curiosity,  ya know.  

[Oldsmobile_Mike]

I hope you are not using ReOrg on a partition larger than 4GB!  Otherwise, it's great software and I have fond memories of it from back in the day.  A bit useless in this era of CF cards and many-GB drives, however.