[SOLVED] Mac OS 15 Sequoia on Proxmox 9.0.3

[twistedmethod]

I've had no luck with Mac OS Sequoia on 9.0.3. I have tried a lot of things, none of which have worked. I followed an old tutorial that did work for me on 8.4 but no longer works on 9. In simple terms I can't get it to work and find the boot.efi to start the installation process in OpenCore. I know OpenCore is fine as I used it in 8.4 and it was the same version so 100% something on Proxmox.

args: -device isa-applesmc,osk="ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc" -smbios type=2 -device qemu-xhci -device usb-kbd -device usb-tablet -global nec-usb-xhci.msi=off -global ICH9-LPC.acpi-pci-hotplug-with-bridge-support=off -cpu Haswell-noTSX,vendor=GenuineIntel,+invtsc,+hypervisor,kvm=on,vmware-cpuid-freq=on
bios: ovmf
boot: order=virtio0;ide2;net0;ide0
cores: 6
cpu: host
efidisk0: workspace:107/vm-107-disk-0.qcow2,efitype=4m,size=528K
hostpci0: 0000:05:00.0,pcie=1
ide0: workspace:iso/macos-sequioa.iso,media=disk,cache=unsafe,size=16654785024
ide2: workspace:iso/OpenCore-v21.iso,media=disk,cache=unsafe,size=150M
machine: q35
memory: 16384
meta: creation-qemu=10.0.2,ctime=1755117483
name: macos-test
net0: vmxnet3=BC:24:11:27:02:68,bridge=vmbr0,firewall=1
numa: 0
ostype: other
scsihw: virtio-scsi-pci
smbios1: uuid=4a0c2a4a-1049-4d28-a264-ee30df8d5300
sockets: 1
vga: vmware
virtio0: workspace:107/vm-107-disk-1.qcow2,cache=unsafe,iothread=1,size=128G
vmgenid: 2fcbf8ce-f436-48ce-8bba-6d567c4a81d4

You used to be able to use OpenCore and have everything work by setting the disks to "media=disk,cache=unsafe" but this no longer works. Does anyone have any insight or knowledge of how I could make this work?

 

[twistedmethod]

I used an install script I found on GitHub. This worked and I am now able to install Mac OS.

So far I have been able to install Mac OS Sequoia on Proxmox 9.

This is the install script if anyone is wondering: https://github.com/luchina-gabriel/OSX-PROXMOX?tab=readme-ov-file

 

[SInisterPisces]

I used an install script I found on GitHub. This worked and I am now able to install Mac OS.

So far I have been able to install Mac OS Sequoia on Proxmox 9.

This is the install script if anyone is wondering: https://github.com/luchina-gabriel/OSX-PROXMOX?tab=readme-ov-file

Thanks for posting this.

The way that script is presented doesn't really explain anything about how it works. Make sure you understand what it's doing before you run it.

 

[LnxBil]

The way that script is presented doesn't really explain anything about how it works. Make sure you understand what it's doing before you run it.

Isn't that the new drug or the new dare around? Running scripts as root from the internet

 

[SInisterPisces]

Isn't that the new drug or the new dare around? Running scripts as root from the internet

I don't know. I'm old now.

I'm afraid that I'm no longer hip to The Youth.

 

[eaglefn]

This tutorial in German worked for me: macOS Sequoia with Proxmox 9.0.6

 

[J0nz3n]

I know this post says it’s solved, but I just wanted to set everyone at ease that may find this in the future since it’s not explicitly said in any of the posts. I gave ChatGPT the link to the raw file for the install script. And she determined that it only adds or can remove some apt repos.
But what I would like to know is that if anyone was having issues signing into iCloud once the vm is up and running.
I was able to get macOS Sequoia installed but I get an error when trying to login to iCloud. It says Unkown error. Since support on proxmox is still in pre release I figured I would check here.

 

[SInisterPisces]

I know this post says it’s solved, but I just wanted to set everyone at ease that may find this in the future since it’s not explicitly said in any of the posts. I gave ChatGPT the link to the raw file for the install script. And she determined that it only adds or can remove some apt repos.
But what I would like to know is that if anyone was having issues signing into iCloud once the vm is up and running.
I was able to get macOS Sequoia installed but I get an error when trying to login to iCloud. It says Unkown error. Since support on proxmox is still in pre release I figured I would check here.

ChatGPT is not a real person and lacks real subject matter expertise. I don't trust its accuracy for this type of analysis.

That said, difficulty with signing into iCloud is a known issue when using virtualized MacOS in insupported configurations (you may have heard the term "Hackintosh"--running MacOS as a VM on Proxmox is essentially a virtualized Hackintosh configuration).

There are ways around the iCloud issues, but you'll need to do some additional troubleshooting, research, and configuration.
EDIT 1: I haven't had a chance to deeply research this yet, but I suspect the issue is that MacOS has detected that it's running inside a VM, and is blocking built-in services as a result since this is an unsupported configuration. In the VM settings, what type of CPU did you select?
EDIT 2: Take a look at this thread for more info and potential fixes. https://forum.proxmox.com/threads/macos-sequoia-cant-log-apple-id-and-its-services.154328/

I'm curious: what "support on Proxmox" are you referring to?
Running MacOS inside a VM in Proxmox (or in QEMU/KVM on an x86 Linux platform more generally) will never be supported by Apple.

 

[MarkusKo]

I don't know much about apple stuff or mac os but i would guess it's because the T2 security chip or their secure enclave (in their custom arm chips) is missing and that you can't really emulate

 

[SInisterPisces]

I don't know much about apple stuff or mac os but i would guess it's because the T2 security chip or their secure enclave (in their custom arm chips) is missing and that you can't really emulate

Probably. Looking at the linked thread, it looks like the current workaround (which doesn't always work) involves flipping some secret configuration bits to make Mac OS a bit less secure against tampering, so that would make sense.