macOS 27 Beta Breaks Asahi Linux Boot on Apple Silicon
Apple's macOS 27 beta has made Asahi Linux partitions invisible and unbootable on Apple Silicon Macs due to changes in how the boot picker detects valid OS volumes. The Asahi Linux team has advised users not to upgrade until the issue is resolved and has filed a bug report with Apple. While the issue may be accidental rather than intentional, it highlights ongoing compatibility challenges for Linux on Apple hardware.
The Asahi Linux project announced that macOS 27 beta, released at WWDC this week, has broken Linux booting on Apple Silicon Macs by changing how the boot picker and Startup Disk application detect valid OS volumes. As a result, Asahi Linux partitions are no longer visible in the boot menu, preventing users from accessing their Linux installations. The Asahi team has advised against upgrading to macOS 27 until a fix is available and has updated their installer to prevent new installations on the beta OS. However, the team clarified that existing Asahi partitions remain intact and no data has been lost—they are simply hidden from the boot interface. The issue has been reported to Apple as a bug, and the team speculates it may be an unintended consequence of the beta rather than a deliberate attempt to block Linux. Asahi Linux remains the leading option for running Linux on Apple Silicon despite this setback.
What different sources said
- The RegisterCenter
macOS 27 beta boots Asahi Linux off Apple Silicon
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