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 Post subject: "No Medium" Detected on CD Boot
PostPosted: Tue Jul 13, 2010 7:57 am 
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Joined: Tue Jul 13, 2010 7:37 am
Posts: 3
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:

Code:
  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

Code:
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


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 Post subject: Re: "No Medium" Detected on CD Boot
PostPosted: Tue Jul 13, 2010 8:09 am 
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Joined: Fri Jan 11, 2008 2:52 pm
Posts: 1278
Can you try to burn another disk with one of the programs listed on: http://iso.snoekonline.com/iso.htm ?

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Use Parted Magic for handling all partitioning task: http://partedmagic.com/


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 Post subject: Re: "No Medium" Detected on CD Boot
PostPosted: Tue Jul 13, 2010 9:03 am 
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Joined: Tue Jul 13, 2010 7:37 am
Posts: 3
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:
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?


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 Post subject: Re: "No Medium" Detected on CD Boot
PostPosted: Fri Jul 30, 2010 7:14 pm 
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Joined: Tue Sep 09, 2008 4:37 pm
Posts: 454
Location: California, USA
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:
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?

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Please check your UBCD ISO MD5 Hash Sum; May prevent issues later on by not having an exact copy.

Currently Working on Common Issues and Repair Tips on the Wiki.


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