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Troubleshooting

Common Boot Failures

SymptomCauseFix
"Reset NVRAM" only optionWrong recovery format or missing kexts/driversRe-download recovery with osx-next-cli download --macos <version>. Ensure OpenCore includes all required kexts.
EXITBS:START hangMissing CryptexFixup (Sonoma+), SIP misconfigured, or MBR disk formatVerify OpenCore has CryptexFixup.kext. Ensure disk is GPT + EFI partition, not MBR+FAT32.
Err(0xE) BootKernelExtensionsMissing CryptexFixup kextAdd CryptexFixup.kext to OpenCore. Required for macOS Sonoma 14 and later.
"No bootable device"OVMF cannot read MBR+FAT32 as cdromOpenCore must be GPT with an EFI System Partition. Rebuild with the tool.
UEFI Shell instead of macOS bootBoot media path or order mismatchEnsure OpenCore is on ide0, recovery on ide2, boot order: ide2;virtio0;ide0.
"Guest has not initialized the display"Display profile mismatch during early bootUse vga: std for stable noVNC during installation.
Stuck on Apple logo (flat CPU)Non-power-of-2 CPU core countUse 2, 4, 8, or 16 cores. Values like 6 or 12 cause kernel hangs.
"Verification Failed" — Apple ID on Sequoia/Tahoehv_vmm_present sysctl returning 1 causes DeviceCheck to reject sign-inEnsure --apple-services was used — it injects a kernel patch redirecting hv_vmm_present to hibernatecount. Note: RestrictEvents.kext revpatch=sbvmm alone does not fix this. If the patch doesn't work, use the Sonoma upgrade path (see Apple Services guide).
macOS is slow on AMDExpected -- AMD uses CPU emulationAMD hosts use Cascadelake-Server emulation instead of native passthrough. Intel hosts get native performance.
Installer doesn't show diskDisk not formattedOpen Disk Utility > View > Show All Devices > Select QEMU VirtIO > Erase as APFS + GUID Partition Map.

Verbose Boot

Enable kernel logging to diagnose boot hangs:

osx-next-cli apply --execute --verbose-boot \
--vmid 910 --name macos-sequoia --macos sequoia \
--cores 8 --memory 16384 --disk 128 \
--bridge vmbr0 --storage local-lvm

This adds -v to OpenCore boot arguments, replacing the Apple logo with a text log.

Diagnostics

Export Log Bundle

osx-next-cli bundle

Collects diagnostic information into a shareable bundle for troubleshooting.

Check Host Readiness

osx-next-cli preflight

Validates CPU vendor, virtualization extensions, dependencies, and TSC flags. Automatically installs missing build dependencies if detected.

Recovery Guide

osx-next-cli guide "boot issue"

Prints step-by-step recovery instructions for a given issue description.

Check VM Status

osx-next-cli status --vmid 910

Shows VM name, running state, and key configuration (cores, memory, CPU model, network, SMBIOS).

Missing Assets

If apply is blocked by missing assets, the tool scans these directories:

  • /var/lib/vz/template/iso
  • /mnt/pve/*/template/iso
  • Custom path from --iso-dir

It looks for:

AssetFilename Pattern
OpenCoreopencore-osx-proxmox-vm.iso or opencore-{version}.iso
Recovery{version}-recovery.img or {version}-recovery.iso

Auto-download missing assets:

osx-next-cli download --macos <version>
note

The TUI wizard (step 5) auto-downloads missing assets before the dry-run preview.

Post-Install Boot Order

After macOS finishes installing, fix the boot order so the main disk boots first:

qm set <vmid> --boot order=virtio0;ide0

Without this, the VM boots into the recovery installer on every start.

MSR Kernel Panics

If macOS panics with MSR-related errors, ensure the host has:

echo "options kvm ignore_msrs=Y" > /etc/modprobe.d/kvm.conf

Then reboot the Proxmox host.

Getting Help

When reporting an issue, include:

  1. Output of osx-next-cli preflight
  2. Output of osx-next-cli bundle
  3. The macOS version and CPU vendor (Intel/AMD)
  4. The exact error message or symptom