Dear list, I have under supervision a few old servers running 11.2-STABLE. The hardware is almost for retirement, but still in working condition. It's all old Nocona NetBurst microarchitecture. I have recently tried do upgrade OS two of them to 12.0-STABLE, but failed. When I use old bootloader the boot freezes on blue highlighted "Booting" stage, when I tried to use 12 loader, it freezes earlier, on loading kernel modules. The kernel was compiled from fresh sources for CPUTYPE?=nocona. 11.2-STABLE is fine with this optimization and the same kernel boots fine on newer hardware.
It is fair, that 11 EOL is expected September 30, 2021 and these servers will likely be retired before this date, but some questions arise: Is such old hardware still supported? Is it possible (how to) debug the booting process? Regards, -- Marek Zarychta
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