hardware crash


Well-Known Member
I have Kubuntu installed on my desktop computer. Yesterday it crashed and rebooted. However, it couldn't get to the grub menu without rebooting again. This happened before and turned out to be a bad power supply. But this one is not even 2 years old, so I find it hard to believe that it's dead. This morning I powered on the computer again and it booted up just fine. Is there a log somewhere that I can look at to see if Linux reported anything before it crashed? Something that might help point the finger at the culprit?


Well-Known Member
dmesg is a common tool for identifying issues and problems, although it may or may not give you what you're looking for. You can invoke dmesg to provide a timestamp which might help you focus on the event, and you can also tell it to just show certain levels of reports, such as emergency, alert, critical, etc. See more details on usage here:


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