Mike, My thought would be to run a memory test.
Either download from the memtest86 web site, and make a bootable USB, or install the Debian memtest86+ package and then reboot and select memtest86+. memtest86 has helped me a few times. Once with picking up mismatched RAM modules and one time with faulty RAM. https://www.memtest.org/ Memtest86+ v6 is a unified, free, open-source memory testing tool, released under GNU GPL v2.0 There are still plenty of other sources that can cause the odd strange reboot. If you can (e.g. have the free time, and maybe a different disk drive), maybe try another new installation? My main computer does it from time to time, but so infrequently, I still keep using it. I guess one day the computer will die, but until then... I had heard that Intel have been experiencing some instability which has been of concern. I will be curious what others may suggest, like using stress-ng or s-tui ? https://support.system76.com/articles/hardware-failure/ FYI: To my knowledge, a new installation (when connected to the Internet) should result in a totally up to date system, such if you run "apt update && apt full-upgrade -y" afterwards, there should be no updates to apply. Your comment "Then that upgraded linux-image-6.1.0-22-amd64 to -23-" does concern me, I would prefer to start with a new, clean, working installation, even if that means installing all over again. George. On Friday, 09-08-2024 at 15:09 Mike wrote: > I just installed Debian 12.6.0 (from a Debian Live ISO image) on new server > hardware. On the way to getting it installed, it was suddenly rebooting. > I even got so far as installing it and running "apt upgrade", when it > rebooted again. > > Then that upgraded linux-image-6.1.0-22-amd64 to -23-. So far, the system > seems stable. I'll let it run for awhile before I believe that. > > So the question is: Has there recently been such an issue with the -22- > package? It seems that there were a *lot* of changes from the upstream > 6.1.94 to 6.1.99, so maybe something was repaired. > > I'm not sure what to doubt right now: the CPU (Intel's been having issues > with Raptor Lake, but mine's a "T" series), the motherboard (may have been > mishandled by the retailer), or Linux. > > This is an offbeat question, so I understand if I never get an answer. > > M
