You receive the following error message during a validation or restore operation, where the image resides on an optical disc:
Unable to read from file
This problem indicates that the image data cannot be read from the disc and usually indicates that the image is not valid.
Try some or all of the following suggestions, as needed:
- Update the drive's firmware, if possible.
- Try burning at a lower speed.
- Try a different brand and/or type of media.
- Use a different optical drive, if possible (in particular, try using the same drive that was used to burn the disc, where applicable).