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I just got a .iso of the linux distro Backtrack 5 R2. I set it up, using virtual box, and set it up to run using the .iso, and hard drive as a .vdi. Here's the setup:

System: Base Memory: 1500 MB Boot Order: CD/DVD-ROM, Hard Disk Acceleration: VT-x/AMD-V, Nested Paging

Storage: IDE Controller IDE Primary Master (CD/DVD): BT5R2-KDE-64.iso (2.62 GB)

SATA Controller SATA Port 0: Backtrack 5 R2.vdi (Normal, 8.00 GB)

Why would I be getting this error? Everything looks fine to me. And also, I'm running virtual box in a Windows 7 64bit OS.

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    Did you check the VBox.log? Posting it might help a bit. Press Crtl+L in VirtualBox when the BackTrack entry is selected or go look for it somewhere around here: /home/$USER/.VirtualBox/Machines/$YOURMACHINE/Logs Aug 4 '12 at 14:07
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I've encountered this problem before, and I troubleshooted as follows:

  1. I checked if my ISO image was mounted in VirtualBox and it was.
  2. I checked if my ISO image was corrupted and indeed it was.
  3. I fixed the ISO image and tried again, and it worked like a charm.

SHA1 and MD5 checksums are normally published alongside ISO images to check against after you download.

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Check the following under [VirtualMachine] > Settings:

  1. [System] > Boot order : Is CD/DVD drive checked and first on the list?
  2. [Storage] > CD/DVD Drive : Is the image mounted and chackbox 'Live CD/DVD' checked?

BTW, why are you using SATA for your virtual disk port? (I've got a IDE controller, BT VDI disk as prim master and DVD drive as sec master under it, host Win7 x64 Ult = works fine.)

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Try using a IDE controller instead of SATA.

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    Is this something you know from experience (if so, please say so in your answer), or is it a random stab at troubleshooting? If the latter, please realize that the question was asked in 2012, and the user asking hasn't been back to the site since then...
    – derobert
    Jun 20 '14 at 21:20
  • This is a valid answer. Even today Virtualbox 5.0.24 fails to boot from a ISO image on a SATA controller if the first controller is IDE. Either make the first controller SATA and the second IDE. Or remove the IDE controller completely if you don't need it.
    – scai
    Sep 4 '16 at 9:48

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