Startup Floppy Disk Help

Hello,
I am new to Lua and started this morning. Anyway I am probably somewhat of a noob so yeah. I'm having some troubles with my startup. I have a floppy disk, and I want to copy the "Startup" program onto it.
(I use "edit startup")
Is this even possible? I'll tell you step by step what I do.

Computer 1

Put floppy disk in drive. (Tagged Factory Login)
run command "copy startup factory login"
I get "File exists" as response.

Computer 2

copy factory login startup
I get back "No such File"!

Can someone please help? Thanks!

Disks mount as a folder, starting with /disk, then /disk2 etc. To copy a startup file to a disk, use:

cp startup disk/startup