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>how do you assess the risk to MBR as lower? I do not, but due to its size limit (64k IIRC), I doubt much could be added to it :) >How many hardware platforms

by jmclnx 2y ago

>how do you assess the risk to MBR as lower? I do not, but due to its size limit (64k IIRC), I doubt much could be added to it :) >How many hardware platforms are currently available with "pure" MBR support I have no idea, but on the 2 laptops I have, T420 and W541, MBR is supported. As far as I know, all x86 hardware should support MBR. Of course I do not run any version of Windows, so I can use MBR.

justsomehnguy 2y ago
> As far as I know, all x86 hardware should support MBR You are mixing up MBR (which is a disk partition schema) with the BIOS (old, pre UEFI) and CSM (literally UEFI Compatibility Support Module) boot processes. Everything post 2012[0] is UEFI, most of time with CSM support but there are some machines without CSM at all. You are really booting in UEFI and then it loads a CSM which proceeds with "legacy" boot mode. T420 uses QM67 which is a second generation after Ibex Peak which was the first one to implement UEFI on Intel platform. ie: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t420/downloads/ds018785 https://pcsupport.lenovo.com/us/en/products/laptops-and-netb... [0] Basically post Nehalem