Re: Why would a PC not boot from CD?



__/ On Saturday 27 August 2005 21:42, [Philip Herlihy] wrote : \__

> DVD actually. I've taken the DVD player out of one machine and put it
> into one I want to install Small Business Server on, and although I can
> tell the BIOS to boot first from the CD/DVD, it fails to find the boot
> record,
> although I get a message to say it's looking for it on the CD. I've also
> tried it with an XP Pro CD, and the same happens. On all other machines,
> the XP disc is bootable. What am I missing? I'm no great shakes at the
> BIOS level - it's all half (quarter?) understood.

It sounds as if that machine gives up on the CD-ROM phase and moves onwards
to the next which is usually the hard-drive (if not network/floppy).

- Make sure that the head in your CD drive is clean. If it is not, the
effect would match that which is described above.

- Try booting from a floppy disk to re-assure yourself that the problems
does not lie at a higher level like BIOS, but rather at the CD drive's
level.

- Change the sequence of boot sources, e.g. to attempt CD-ROM before
anything else.

- Consider the fact that the drive might be faulty. Can this be checked,
e.g. by getting a DOS prompt and mounting the CD drive?

Hope it helps,

Roy
.



Relevant Pages

  • Re: Please help ntldr is missing
    ... the BIOS was trying to boot to something other than a CD or hard drive. ... You said you formatted in a different machine, is it possible your DVD player has a fault or that it simply "Doesn't like" your DVD - this happens sometimes. ...
    (microsoft.public.windows.vista.general)
  • Re: 2 wondows versions detected on pc startup?
    ... if not put there by the BIOS? ... BIOS examines the very first sector of the disk for a Master Boot Record ... table which describes the layout of the fixed disk and the partition loader ... This is where Windows and NTLDR comes in, ...
    (microsoft.public.windowsxp.setup_deployment)
  • Re: maximum hard drive size in Latitude cpi
    ... > actually written a boot loader they won't be so adamant about how "Windows ... > of the disk, and while it is being read off of the disk the machine is ... > limitatoins of that BIOS. ... After that the kernel takes over. ...
    (comp.sys.laptops)
  • Re: Fn-F2 on dell 1505 under debian 4.0 etch
    ... now you can change bios, cmos setting of your dell laptop from ... some tokens are here:http://linux.dell.com/libsmbios/main/token.html ... "Enables the systemâ??s built-in parallel port to operate in AT mode ... 0x0051 Boot_Diskette_First "For the next system boot, ...
    (comp.sys.laptops)
  • Re: [DOCUMENT] Re: Intel Macs that boot FreeBSD?
    ... on how closely coupled the FreeBSD/i386 boot process is to the BIOS ... Reads and relocates boot2 to low memory to continue boot process ... 40:49h Video Mode ...
    (freebsd-current)