Infrastructure Software

I have downloaded the three solaris 8 CD images from sun.com and duplicate them into 3 blank CDRs.

I also created the Solaris 8 Device Configuration Assistant into my blank diskette using dd.

When I boot from the diskette to install solaris 8, I encountered the following error when I choose CD at the Boot Solaris Screen,

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Unable to mount a Solaris root file system from the device:
CD:(*)Target 0, NEC CD-ROM DRIVE:28C 3.02
on Bus Mastering IDE controller on Board PCI bus 0, at Dev 7, Func 1

Error message from mount:
/pci@0,0/pci-ide@7,1/ide@1/sd@0,0:a: can't open - no hsfs VTOC

Press Enter to Continue.
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1) Why can't the system mount the CD-ROM drive?
2) What does "hsfs VTOC" mean?
3) I have put the Solaris install CD into the cd-rom drive, so why the system cannot read from that cd image?
4) The installation image we download from sun.com, is it bootable by itself? I try not to use the Solaris 8 Device Configuration Assistant bootdisk, but the system refuse to boot from the installation CD. I had already set the BIOS to boot from CD.
5) How can I resolve the problem?

Thanks and Regards.