Apart from theoretically ensuring that you are booting correctly into legal OS on SX1 HD, the most important advice I can give you (having now remaining only 1 of 4 CD32s) is to be VERY VERY careful when using SX1.
Mine killed (joey connection...) lots of memory/2 CD32s and occasionally was a bit of fun.
To run CD32 software now (lots of CDs) I use legal under £30 Cloanto Amiga Forever emulator on well-proven reliable PCs.
I apologise to anyone who feels that I must use only my original Amigas - they are my favourite computers WITH FLOPPY programmes, but PC emulators are indubitably cheaper/more reliable/better for running programmes that needed CD or HD installation.
Good luck with careful use of SX1 - my advice from expensive experience is to sell it/keep your CD32/use PC for Amiga CD32/HD emulation ...