3 ms·

The only problem seems to be that it won't allow you to run an earlier OS X that can still run 32-bit programs.

by protomyth 4y ago

sdevonoes 4y ago
Another problem is that it's not programmatic (e.g., like Vagrant), so it's tiresome to spin up/down a bunch of VMs.
- wmf 4y ago
  There are several tools to create VMs from the CLI or scripts like QEMU, docker machine, and podman machine.
oneplane 4y ago
Those earlier macOS versions don't have the frameworks to run virtualisation with. There are some hacks (mackintosh-ish) that allow you to run very old Intel releases on non-ARM releases, those virtualise the CPU but emulate nearly everything else.
miles 4y ago
The comment you replied to was about UTM, which does allow running earlier versions of macOS/OS X on Apple silicon hosts: Virtualizing OpenCore and x86 macOS on Apple Silicon (and even iOS!) https://khronokernel.github.io/apple/silicon/2021/01/17/QEMU-AS.html https://khronokernel.github.io/apple/silicon/2021/01/17/QEMU... Run Tiger, Leopard, or any Mac OS X PowerPC version on M1 https://tinyapps.org/docs/tiger-on-m1.html https://tinyapps.org/docs/tiger-on-m1.html
- protomyth 4y ago
  Their website says differently Note that macOS VM support is limited to ARM based Macs running macOS Monterey or higher. https://mac.getutm.app/ https://mac.getutm.app/
  - rafram 4y ago
    That means that the host has to be on Monterey or higher. The guest can be any macOS version.
    - saagarjha 4y ago
      No, the guest (if using Virtualization) must be Monterey or higher as well.
  - miles 4y ago
    > Their website says differently Note that macOS VM support is limited to ARM based Macs running macOS Monterey or higher. While ARM virtual machines are limited to Monterey and higher on Apple silicon[0], emulation works just fine for x86, PowerPC, etc. Here's a video I cobbled together of UTM running Tiger on an Apple silicon Big Sur host: https://tinyapps.org/screenshots/tiger-on-m1.mp4 https://tinyapps.org/screenshots/tiger-on-m1.mp4 and another of the same host running Windows XP: https://tinyapps.org/screenshots/20210522-utm-xp.mp4 https://tinyapps.org/screenshots/20210522-utm-xp.mp4 [0] https://kb.parallels.com/125561 https://kb.parallels.com/125561 "To run a macOS Monterey VM on Mac computers with Apple M1 chips, Parallels Desktop 17 uses new technology introduced in macOS Monterey, that's why it is not possible to run earlier versions of macOS on a Mac with Apple M1 chips."

The only problem seems to be that it won't allow you to run an earlier OS X that can still run 32-bit programs.

sdevonoes 4y ago

Another problem is that it's not programmatic (e.g., like Vagrant), so it's tiresome to spin up/down a bunch of VMs.

wmf 4y ago
There are several tools to create VMs from the CLI or scripts like QEMU, docker machine, and podman machine.

oneplane 4y ago

Those earlier macOS versions don't have the frameworks to run virtualisation with. There are some hacks (mackintosh-ish) that allow you to run very old Intel releases on non-ARM releases, those virtualise the CPU but emulate nearly everything else.

miles 4y ago

The comment you replied to was about UTM, which does allow running earlier versions of macOS/OS X on Apple silicon hosts: Virtualizing OpenCore and x86 macOS on Apple Silicon (and even iOS!) https://khronokernel.github.io/apple/silicon/2021/01/17/QEMU-AS.html https://khronokernel.github.io/apple/silicon/2021/01/17/QEMU... Run Tiger, Leopard, or any Mac OS X PowerPC version on M1 https://tinyapps.org/docs/tiger-on-m1.html https://tinyapps.org/docs/tiger-on-m1.html

protomyth 4y ago
Their website says differently Note that macOS VM support is limited to ARM based Macs running macOS Monterey or higher. https://mac.getutm.app/ https://mac.getutm.app/
- rafram 4y ago
  That means that the host has to be on Monterey or higher. The guest can be any macOS version.
  - saagarjha 4y ago
    No, the guest (if using Virtualization) must be Monterey or higher as well.
- miles 4y ago
  > Their website says differently Note that macOS VM support is limited to ARM based Macs running macOS Monterey or higher. While ARM virtual machines are limited to Monterey and higher on Apple silicon[0], emulation works just fine for x86, PowerPC, etc. Here's a video I cobbled together of UTM running Tiger on an Apple silicon Big Sur host: https://tinyapps.org/screenshots/tiger-on-m1.mp4 https://tinyapps.org/screenshots/tiger-on-m1.mp4 and another of the same host running Windows XP: https://tinyapps.org/screenshots/20210522-utm-xp.mp4 https://tinyapps.org/screenshots/20210522-utm-xp.mp4 [0] https://kb.parallels.com/125561 https://kb.parallels.com/125561 "To run a macOS Monterey VM on Mac computers with Apple M1 chips, Parallels Desktop 17 uses new technology introduced in macOS Monterey, that's why it is not possible to run earlier versions of macOS on a Mac with Apple M1 chips."