I am receiving the following repeating errors:
end_request: I/O error, dev sr0, sector 0
Buffer I/O error on device sr0, logical block 0
Buffer I/O error on device sr0, logical block 1
How do I determine what drive device sr0 is?
Usually those are ordinal values, so 0 is the FIRST device, 1 is the SECOND device.. that's probably a good guess.
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These errors appear when the DVD drive on the host is empty. Put a disk in, the errors stop. And VM's can read the disk fine.