Le mar. 29 oct. 2024 à 16:09, lacsaP Patatetom <patate...@gmail.com> a écrit :
> Le mar. 29 oct. 2024 à 15:52, lacsaP Patatetom <patate...@gmail.com> a > écrit : > >> hi, >> >> in order to have “portable” VMs, I used to install them with Qemu's `-cpu >> qemu64` option, but it turns out that the Windows 11 24H2 installation CD >> no longer boots with this option : do you know which CPU flag to use to >> maintain the desired "portability"* ? >> >> note that Windows 11 24H2 boots without any problem if I pass it the >> `-cpu host` option, and Windows 23H2 boots without any problem with the >> `-cpu qemu64` option. >> >> (* boot the VM on both Intel and AMD without it having to reconfigure >> itself) >> >> regards, lacsaP. >> > > using older and older emulated Intel processors, Windows 24H2 installation > CD boots with the `-cpu Nehalem` option. > > `-cpu Nehalem` (2008) -> OK > `-cpu Penryn` (2007) -> KO > `-cpu Conroe` (2006) -> KO > `-cpu qemu64` -> KO > > dates are those given in Qemu documentation ( > https://qemu.readthedocs.io/en/v9.1.0/system/i386/cpu.html#preferred-cpu-models-for-intel-x86-hosts > ). > a little Googling returned the answer : " Microsoft blocks some PCs from Windows 11 24H2 - CPU must support SSE4.2 or the OS will not boot ". https://www.tomshardware.com/software/windows/microsoft-updates-windows-11-24h2-requirements-cpu-must-support-sse42-or-the-os-will-not-boot https://jensd.be/2547/windows/upgrade-to-or-install-windows-11-24h2-on-unsupported-hardware so `-cpu qemu64,+sse4.2` does the job !
