# PCIe Bus Error (OS fails to start)

## post by Shockmeister on Aug 7, 2019

Hi

My Lambda Tensorbook won’t boot. From what I can see (black screen with error messages scrolling constantly) its a PCIe bus error. I’ve tried to boot in recovery mode, but still getting the same result.

Any techies shed some light on this?

## post by eleuthera on Oct 11, 2019

Same issue here. did anyone ever help you?

## post by eleuthera on Oct 14, 2019

I ended up rebooting repeatedly. After about 20 reboots, I finally got into ubuntu. Then I did an update to everything and followed these instructions:

That solved this issue for me.

## post by sabalaba on Oct 18, 2019

Sounds like you fixed the issue here, I’ll cross post in your other thread. Are you dual booting as well?