Installing SunOS

[Andrei Lenkei TM/JU 95712]

Hello!

What I have:
	SPARC SLC
	Tape streamer
	Micropolis drive
 	SunOS 4.0.3 SPARC tapes 1 & 2
What I want to do:
	I want to set up my SLC as a server and install the SunOS on the
	disc.
        According to the manual all I have to do is write 'b st()' at the
	> - promt and then proceed.
My problem:
	The tape is read and then I get the message:
	'The file just read in does not seem to be executable'

Any idea as to what may be wrong?
Please reply via email.
Thank you.