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I have an external CD drive which connects to USB. I burned 11.10 Ubuntu image to CD-R. The disk correctly shows me install page when I autoload disk within Windows 7.

When I restart to attempt to boot from disk to install Ubuntu I get the following error for a split second before I continues to boot to Windows.

"isolinux.bin is missing or corrupt".

Clearly my computer knows that this is a Linux disk in the usb cd-drive...What went wrong?

edit: I reburned another disk, same error

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  • Perhaps... you should listen to your Computer when it tells you that the CD you made is corrupt. Use another one, A CD-RW would be better if not, then a USB stick. Feb 14, 2012 at 23:01
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    I agree, most likely a bad burn. You should also check the iso - help.ubuntu.com/community/VerifyIsoHowto
    – Panther
    Feb 14, 2012 at 23:14
  • I reburned another disk, same error! Any ideas? Feb 14, 2012 at 23:58
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    Download the ISO again and check the MD5 check sum Feb 15, 2012 at 1:52
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    OMG ppl, it's not the case. Checking MD5 sums advice is everywhere. But checksums are the same. Still can't boot into such image.
    – marines
    Sep 23, 2012 at 15:15

3 Answers 3

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I have checked the MD5sum it was correct and tried two times to write the USB stick, still nothing.

After that I found this link: http://www.hinditechy.com/isolinux-bin-missing-corrupt/

Quoting the part of that article that helped in my case:

Boot Setting of your PC \ server – This is very important factor and i have seen many users who resolved issue if above two not worked for them. So you should also try below –

  1. Go to BIOS settings and check Emulation Type settings
  2. Now go to USB Flash Drive Emulation Type and select Hard Drive option. After this save changes and reboot your machine.
  3. After reboot in the boot options you might will get hard drive option and there you need to select your USB drive.

Good luck!

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You should First check the MD5sum Before write to CD or USB. In your case The .iso you downloaded and burned on disc is faulty. You have to download .iso file again.

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Like everyone said probably a bad burn.

I recommend using a tool called Unetbootin which makes your pendrive bootable.

It is way faster then using a CD.

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  • I don't have a pendrive with me that has enough space for the Image. I reburned the disk and the error is there still, any idea? Feb 14, 2012 at 23:59
  • bad burn or a bad dvd/cd drive .... any 1 GB pendrive will do... or you can try an Ubuntu minimal iso thats only 26 mb u can use anoter program to burn Feb 16, 2012 at 1:07

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