The Startup Sequence

My Amiga won't boot after I made changes to the startup-sequence, what now?

You will have to boot to the OS floppy and copy the StartupSequenceHD from s/

Can I modify the Startup-Sequence to get better performance?

The Startup-Sequence shouldn't be touched unless the software you are using absolutely, positively requires it.

Why not?
The startup-sequence is the very first file the Amiga looks at after it has passed its self tests. For the most part, your software will be happy to live in the user-startup file. Some software that I know of that has to be in the startup-sequence are those that have special requirements, directly influence the hardware and those that start emulation. Another program is called, nickprefs. (which gives you a greater selection of preferences drivers for versions of AmigaOS lower than 3.0)

If you have to modify the startup sequence, don't erase anything and try not to move the commands around. If you've just been consistently changing your startup sequence, and now you have problems, copy the sequence from your system disk, and this time don't change it unless you really have to.

Another tip, is whenever making changes to the startup-sequence, make a backup. (startup.old or something like that). Then if something does go wrong once you made a change, or some software made a change, you can go back to the way it was before the problem started.