Gentoo Archives: gentoo-user

From: Adam Carter <adamcarter3@×××××.com>
To: Gentoo User <gentoo-user@l.g.o>
Subject: Re: [gentoo-user] Running old RHEL as a VM on Ryzen
Date: Wed, 14 Apr 2021 09:28:51
Message-Id: CAC=wYCGPUO=Xs5VhVE8HabeMpKzWuhvnV26e9s2LsMPVxb2s1w@mail.gmail.com
In Reply to: Re: [gentoo-user] Running old RHEL as a VM on Ryzen by tastytea
1 >
2 > > I tried running an old version of RHEL with an old 3.x kernel in
3 > > VirtualBox, however, it won't run due to my hosts Ryzen CPU so I
4 > > guess I need something that does CPU emulation.
5 > >
6 > > Is this likely to be achievable with qemu ?
7 >
8 > Yes. Look up the release date of your kernel[1] and pick a slightly
9 > older CPU[2].
10 >
11 > [1] <
12 > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/refs/>
13 > [2] <https://qemu.readthedocs.io/en/latest/system/qemu-cpu-models.html>.
14 >
15 >
16 Great.
17
18 Ok i see 3.10 was released 2013-06-30, so looking for a cpu released the
19 previous year, say
20 IvyBridge, IvyBridge-IBR Intel Xeon E3-12xx v2 (Ivy Bridge, 2012)
21
22 and $ qemu-system-x86_64 -cpu ? | grep -i ivy
23 x86 IvyBridge (alias configured by machine type)
24
25 x86 IvyBridge-IBRS (alias of IvyBridge-v2)
26
27 x86 IvyBridge-v1 Intel Xeon E3-12xx v2 (Ivy Bridge)
28
29 x86 IvyBridge-v2 Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS)
30
31
32 So if I run the following then RHEL will think it's running on an IvyBridge
33 cpu, right?
34 $ qemu-system-x86_64 -cpu 'x86 IvyBridge-v1' etc

Replies

Subject Author
Re: [gentoo-user] Running old RHEL as a VM on Ryzen Michael <confabulate@××××××××.com>