On Thu, Sep 10, 2015 at 02:08:07PM -0400, James E. LaBarre wrote: > I have a system that has decided it wants to do spontaneous shutdowns. At > first I had seen it was shutting down while I was booting it up (can't tell > at which point it failed then, since it's on a KVM and I had it switched to > the other machine while it booted). Afterwards I was able to get it to boot > all the way into the Mate desktop, and used it for about 10 minutes one > time, about 30 min the next. One time I actually got a popup asking whether > I wanted to do a reboot, suspend, or shutdown, but it then just shut off > before I could even respond. Afterwards it just shuts down without any > warning. > > I'd like to set up some sort of monitoring/logging on it to see if I could > catch what fails, since I couldn't see anything obvious in the logs in > /var/log. > > I'd think it might be a temperature failure, so I expect I'd need to run > some thermal monitoring.
I'd agree - thermal panic, power supply problem, or dodgy ram seem good guesses. You probably need to get console on a serial port: http://www.electronicsfaq.com/2013/04/redirecting-kernel-messages-dmesg-out.html because you may not be booted enough for logging. It's also possible you may be able to use some platform-specific diagnostic tools to pull previous error codes. -m --
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