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In the course of my adventures in Ubuntu, I've encountered the mysterious black screen with the single line

stdin: error 0

at boot many times. But what does it mean? Is it Kernel level? Is it bootloader? Or is it just a generic error that means "oops"?

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up vote 4 down vote accepted

In short its an error reading something although what is a little hard to diagnose without a little more information.

I've seen it on my machine, at boot, if I've got a CD in my drive that can't be read. It also turns up on drives/ram that is failing.

Those examples are not exhaustive, however, so I wouldn't go worrying unless you've got any other evidence of hardware issues.

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