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"No Medium" Detected on CD Boot

Posted: Tue Jul 13, 2010 7:57 am
by jdcrutch
Hello. I'm trying to run UBCD on an Alienware Aurora computer. I burnt the ISO to a CD using Windows 7's disk image burning utility. The CD is readable in Windows. Its top-level directory contains the following:

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  antivir\
  boot\
  pmagic\
  ubcd\
  autorun.inf
  license.txt 
I restart my computer with the CD in the CD-ROM drive, and punch F12 for Boot Options.
I select the CD-ROM drive from the menu.
The BIOS reports

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Boot ready.
No medium.
Then it boots into Windows.

I have two optical drives, and it happens with both. I changed the boot source order in BIOS to make the CD-ROM drive the first source, but that didn't change anything.

Am I missing a step? Shouldn't the CD have autoexec.bat and config.sys files in the top-level directory, in order to boot into DOS? Or does autorun.inf take care of that?

Thanks for any help.

Regards,

Jim Crutchfield
Long Island City, NY

Re: "No Medium" Detected on CD Boot

Posted: Tue Jul 13, 2010 8:09 am
by Icecube
Can you try to burn another disk with one of the programs listed on: http://iso.snoekonline.com/iso.htm ?

Re: "No Medium" Detected on CD Boot

Posted: Tue Jul 13, 2010 9:03 am
by jdcrutch
Thanks for the quick reply!

I burnt another disk with Image Burn, but got the same results.

To be precise, here is what I get:

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CD-ROM Priority . . Boot Ready
CD-ROM Priority . . No Medium
The last time I tried it, the second line briefly flashed "CD-ROM Priority . . 35" before switching to "No Medium".

I tried it with another supposedly bootable disk and got the same thing, so maybe it's a problem with my BIOS or hardware?

Also, this is a 64-bit system. Does that make a difference?

Re: "No Medium" Detected on CD Boot

Posted: Fri Jul 30, 2010 7:14 pm
by StopSpazzing
jdcrutch wrote:Thanks for the quick reply!

I burnt another disk with Image Burn, but got the same results.

To be precise, here is what I get:

Code: Select all

CD-ROM Priority . . Boot Ready
CD-ROM Priority . . No Medium
The last time I tried it, the second line briefly flashed "CD-ROM Priority . . 35" before switching to "No Medium".

I tried it with another supposedly bootable disk and got the same thing, so maybe it's a problem with my BIOS or hardware?

Also, this is a 64-bit system. Does that make a difference?
No, wouldn't make a difference, as your cpu can run 32bit and 64bit, has nothing to do with your operating system being 64bit.

I would try to redownload the ISO, and checksum verify it to confirm its a proper download then try burning again. If that fails, would check for bios updates and cd/dvd drive updates, but be warned, follow the instructions they give you as you could make your drive or motherboard unbootable if done improperly.

You could also try to make sure your bios is setup properly to boot the cdrom drive. If you have more than 1 cd/dvd drive you need to make sure both are set to boot before the HDD. Maybe your drive you are using isnt the drive that is set to boot up first?