DOS Boot disk not finding hard drive

I am creating a floppy dos boot disk which I will use to build a bootable ghost cd (to rebuild a box from DVD)

I have downloaded the boot disk from http://www.allbootdisks.com/download/dos.html

Problem is that when I boot from the boot disk I can only see the A drive or the D drive (cd)

C drive gives "invalid drive specification"

Without the floppy, the computer boots normally.

From the BIOS, C Drive is Primary IDE Master
DVD is Primary IDE Slave

Current config.sys is:

DEVICE=HIMEM.SYS /testmem:off
FILES=30
BUFFERS=20

DEVICE=cd1.SYS /D:banana

rem DEVICE=cd1.SYS /D:banana /P:1f0,14
rem DEVICE=cd1.SYS /D:banana /P:170,15
rem DEVICE=cd1.SYS /D:banana /P:170,10
rem DEVICE=cd1.SYS /D:banana /P:1e8,12
rem DEVICE=cd1.SYS /D:banana /P:1e8,11
rem DEVICE=cd1.SYS /D:banana /P:168,10
rem DEVICE=cd1.SYS /D:banana /P:168,9

LASTDRIVE=Z


Current Autoexec is:

@echo off
MSCDEX.EXE  /D:banana /L:d
SET TZ=GHO-10:00
prompt $p$g
MOUSE.COM
cls
d:\GHOST.EXE -CLONE,MODE=LOAD,SRC=d:\restore.gho,dst=1 -SURE
:END

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