On Wednesday, 14 April 2021 10:28:32 BST Adam Carter wrote: > > > I tried running an old version of RHEL with an old 3.x kernel in > > > VirtualBox, however, it won't run due to my hosts Ryzen CPU so I > > > guess I need something that does CPU emulation. > > > > > > Is this likely to be achievable with qemu ? > > > > Yes. Look up the release date of your kernel[1] and pick a slightly > > older CPU[2]. > > > > [1] < > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/refs/> > > [2] <https://qemu.readthedocs.io/en/latest/system/qemu-cpu-models.html>. > > Great. > > Ok i see 3.10 was released 2013-06-30, so looking for a cpu released the > previous year, say > IvyBridge, IvyBridge-IBR Intel Xeon E3-12xx v2 (Ivy Bridge, 2012) > > and $ qemu-system-x86_64 -cpu ? | grep -i ivy > x86 IvyBridge (alias configured by machine type) > > x86 IvyBridge-IBRS (alias of IvyBridge-v2) > > x86 IvyBridge-v1 Intel Xeon E3-12xx v2 (Ivy Bridge) > > x86 IvyBridge-v2 Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS) > > > So if I run the following then RHEL will think it's running on an IvyBridge > cpu, right? > $ qemu-system-x86_64 -cpu 'x86 IvyBridge-v1' etc
Try: qemu-system-x86_64 -cpu IvyBridge-v1 ... The x86 part is to indicate the arch only, not meant to be included in the stanza.
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