I have been using Ubuntu 18.04 in my PC for past 4 months. Of late my PC is restarting unexpectedly . Kindly help me since I am using the system for high level computations. Unexpected reboot will cause a loss of data
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journalctl -b -1 -e
will show you the logs leading up to the last crash.-b -2
will show the one before that, etc. If crash logs seem random (system behaving normally, then CRASH), suspect overheating - is your fan happy? Is your computer full of dust? Is it overheating? – waltinator May 02 '19 at 21:23