Making an RT-11 v5.3 disk image

I realised that if I could get a floppy disk that booted into RT-11 v5.3, then I might be able to add the DECUS C compiler and have a boot disk and C compiler. This is the procedure I used to make my first RT-11 v5.3 boot disk.

Using SIMH, boot into RT-11 v5.3, making sure that you have blank RX33 disk image attached as DK1:. Then use these RT-11 commands to copy the files to the floppy disk image:

COPY/SYS SY:*.SYS DK1:*.SYS
COPY SY:VBGEXE.SAV DK1:
COPY SY:DIR.SAV DK1:
COPY SY:BUP.SAV DK1:
COPY SY:DUP.SAV DK1:
COPY SY:IND.SAV DK1:
COPY SY:LINK.SAV DK1:
COPY SY:KEX.SAV DK1:
COPY SY:PIP.SAV DK1:
COPY SY:V5USER.TXT DK1:
COPY SY:STARTX.COM DK1:
COPY SY:UCL.* DK1:
CLOSE

Then, shut down SIMH. We'll next use PUTR to make the RX33 disk image bootable (this assumes that you have called the image rx33.dsk and that it is in the same folder as PUTR):

MOUNT a: rx33.dsk /rx33 /rt11
BOOT a:
     RT11XM
     DUX
DISMOUNT a:

That's it. The RX33 image should now be bootable. Try it out in SIMH to make sure.

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