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My server (runs on UBuntu 16.04) and suddenly yesterday (03.04) at 22:28 it went down (reboot), there is an insane long log about it, but I can not deduce what exactly went wrong, can gurus of Ubuntu please point me in the right direction or tell me reason for my debacle.

Here is full logs file https://codeshare.io/5eXnAl

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  • Bad news. Sorry ... /dev/sda drive might be failing. Check SMART info
    – Raffa
    Commented Apr 3, 2020 at 22:03
  • well, at first look it doesn't look like its hard drive's problem, though I started long smart selftest to be sure.
    – Eugene
    Commented Apr 3, 2020 at 23:11
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    Unfortunately, those logs do not say why it went down. It actually stopped at 22:26 and probably hung for a bit. Booted back up at 22:28. You might be able to see maybe closer to the time it rebooted by running last -x. In my experience, unless this is actual server hardware, it is very hard to find out why it crashed, etc. Server hardware sometimes you can run ipmitool sel elist and might be able to see bad hardware causing issues.
    – Terrance
    Commented Apr 4, 2020 at 0:19
  • @Terrance got this from last -x codeshare.io/2jwXAD Though I couldn't run ipmitool sel elist ( how exactly this command goes? )
    – Eugene
    Commented Apr 4, 2020 at 0:54
  • The ipmitool command is used for actual server hardware that has a BMC/LOM on it. I saw in your logs that OpenIPMI was starting, so it had me question it, but if the command doesn't work for you chances are it is not server hardware. Honestly, I would look into bad hardware like running RAM tests and things like that on your system. Also, if it doesn't reboot again, it might have just been an anomaly.
    – Terrance
    Commented Apr 4, 2020 at 1:07

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