OK - I've now run the 4.0.2. DVD. Lack of disk space on my Windows 98 machine meant I had to use my NTFS configured laptop. Nevertheless, this was configured intially to run the 4.0.2. CD cloop file from the hard disk.
I simply replaced the single KNOPPIX cloop file with the two files KNOPPIX, KNOPPIX2 from the 4.0.2 DVD and it booted up into the DVD version no problem.
I am beginning to wonder if PaulBx1 tried to run the 5.0.0 DVD using the linux and minirt.gz files from the 4.0.2 CD. If so then I would suggest updating these files on his hard drive and see how it goes.
ICPUG
1U BareMetal pfsense opnsense Router Firewall DNS Server 6x 10GB Ethernet Ports
$149.00
Supermicro 1U X11DPU 2x Xeon Gold 6132 2.6GHz / 128gb / 10x 2.5 Trays / 2x 750w
$649.99
SuperMicro Server 505-2 Intel Atom 2.4GHz 8GB RAM SYS-5018A-FTN4 1U Rackmount
$197.99
HPE ProLiant MicroServer Gen10 Plus v2 Ultra Micro Tower Server - 1 x Intel Xeon
$846.48
Supermicro CSE-825-7 X10DRW-i 2 Xeon E5-2667v4 3.2GHz SAS3 2U One Power Supply
$209.75
Supermicro CSE 823-6 2U 6 Bay Chassis ,1xPWS 653-2H 650Wsold as in the photo,
$119.75
SuperMicro 842-6 | X10SRL | 4U Chassis Server | E5-1620 V3 | 32GB Ram. No HDD
$99.00
SUPERMICRO RACK SERVER 504-2 5018A-TN4
$200.00
1U Supermicro Server 10 Bay 2x Intel Xeon 3.3Ghz 8C 128GB RAM 480GB SSD 2x 10GBE
$273.00
2U 12 Bay SAS3 SuperMicro Server 6028U-TR4T+ W/ X10DRU-i+ Barebone 12 Caddy RAIL
$299.00