Describe the bug
Orbstack fails to start in MacOS 27
Error:
Host exit diagnostics:
- reason: failed to start
- raw wait status: 256 (0x00000100)
- raw flags: 0x86000000
- exit detail: none
vmgr.log:
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=verify\_rosetta
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=verify\_rosetta
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=migrate\_state
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=migrate\_state
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=initialize\_data\_image
🌲 vmgr | time="09-28 16:40:34" level=info msg="data image already initialized"
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=initialize\_data\_image
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=lock\_data\_image
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=lock\_data\_image
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=create\_swap\_image
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=create\_swap\_image
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=parse\_network\_config
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=parse\_network\_config
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=create\_vm
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=create\_vm
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=start\_net\_services\_early
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=start\_net\_services\_early
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=start\_net\_services
🌲 vmgr | time="09-28 16:40:34" level=info msg="using proxy: none"
🌲 vmgr | time="09-28 16:40:34" level=info msg="forwarding SSH agent" sock=/var/run/com.apple.launchd.SPYTWYMvQn/Listeners
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase complete" phase=start\_net\_services
🌲 vmgr | time="09-28 16:40:34" level=info msg="startup phase begin" phase=start\_vmcontrol\_background
🌲 vmgr | time="09-28 16:40:35" level=error msg="failed to check update" error="check sparkle update: exit status 1; output: Error: Update has failed due to error 1000 (SUSparkleErrorDomain). An error occurred while parsing the update feed.\\n"
🌲 vmgr | time="09-28 16:40:40" level=error msg="failed to check update" error="check sparkle update: exit status 1; output: Error: Update has failed due to error 1000 (SUSparkleErrorDomain). An error occurred while parsing the update feed.\\n"
🌲 vmgr | time="09-28 16:40:49" level=fatal msg="panic: register iokit: IORegisterForSystemPower failed\\ngoroutine 17 [running, locked to thread]:\\nruntime/debug.Stack()\\n\\truntime/debug/stack.go:26 +0x64\\ngithub.com/orbstack/macvirt/vmgr.runVmManager.func3()\\n\\tgithub.com/orbstack/macvirt/vmgr/main.go:802 +0x50\\npanic({0x1066f4a40?, 0x2e58cc27c1a0?})\\n\\truntime/panic.go:860 +0x100\\ngithub.com/orbstack/macvirt/vmgr/util/errorx.RecoverCLI(0x1)\\n\\tgithub.com/orbstack/macvirt/vmgr/util/errorx/errorx.go:30 +0x7c\\npanic({0x1066f4a40?, 0x2e58cc27c1a0?})\\n\\truntime/panic.go:860 +0x100\\ngithub.com/orbstack/macvirt/vmgr.check(...)\\n\\tgithub.com/orbstack/macvirt/vmgr/main.go:138\\ngithub.com/orbstack/macvirt/vmgr.runVmManager()\\n\\tgithub.com/orbstack/macvirt/vmgr/main.go:1107 +0x2f90\\ngithub.com/orbstack/macvirt/vmgr.Main()\\n\\tgithub.com/orbstack/macvirt/vmgr/main.go:1460 +0x7c\\ngithub.com/orbstack/macvirt/vmgr/cgostub/mainfunc.main(...)\\n\\tgithub.com/orbstack/macvirt/vmgr/cgostub/mainfunc/mainfunc.go:13\\n"
Check logs for more details.
To Reproduce
- Open Orbstack with latest MacOS 27
- Exsperience the error
Expected behavior
Orbstack runs normally on MacOS 27
Diagnostic report (REQUIRED)
orb report
Diagnostic report saved to: /Users/mbianchidev/.orbstack/diag/orbstack-diagreport_2026-09-28T14-48-50.160499Z.zip
Review report contents before uploading [y/N]? y
Report opened in a new Finder window.
Upload [Y/n]? Y
get presigned url: [api] (405 Method Not Allowed)
Can't upload the report. Logs should be sufficient.
Screenshots and additional context (optional)
OrbStack info:
Version: 2.2.3
Commit: c83556b0ef8f1ba9a33abbb194622b6b7a1c0307 (v2.2.3)
System info:
macOS: 27.0 (26A428)
CPU: arm64, 8 cores
CPU model: Apple M3
Model: Mac15,13
Memory: 24 GiB
Describe the bug
Orbstack fails to start in MacOS 27
Error:
To Reproduce
Expected behavior
Orbstack runs normally on MacOS 27
Diagnostic report (REQUIRED)
orb report
Diagnostic report saved to: /Users/mbianchidev/.orbstack/diag/orbstack-diagreport_2026-09-28T14-48-50.160499Z.zip
Review report contents before uploading [y/N]? y
Report opened in a new Finder window.
Upload [Y/n]? Y
get presigned url: [api] (405 Method Not Allowed)
Can't upload the report. Logs should be sufficient.
Screenshots and additional context (optional)
OrbStack info:
Version: 2.2.3
Commit: c83556b0ef8f1ba9a33abbb194622b6b7a1c0307 (v2.2.3)
System info:
macOS: 27.0 (26A428)
CPU: arm64, 8 cores
CPU model: Apple M3
Model: Mac15,13
Memory: 24 GiB