Skip to content

Add M3, M3 Pro and M3 Max devices using macOS 14.8.3 OTA#424

Open
jannau wants to merge 3 commits into
AsahiLinux:mainfrom
jannau:m3-macos-16.8.3-ota-install
Open

Add M3, M3 Pro and M3 Max devices using macOS 14.8.3 OTA#424
jannau wants to merge 3 commits into
AsahiLinux:mainfrom
jannau:m3-macos-16.8.3-ota-install

Conversation

@jannau

@jannau jannau commented May 21, 2026

Copy link
Copy Markdown
Member

Add expert-only install support for M3 / M3 Pro / M3 Max based MacBooks
and iMacs using the 14.8.3 OTA update. 14.8.3 support iis for now
limited to these devices until drivers for HW using iboot loaded
firmware are updated for M1 and M2 based devices.
Support for M3 devices is incomplete. There is still outstanding work
in m1n1 and u-boot for basic support. Currently no operating system
images support the "14.8.3" firmware.

Includes m1n1 update to v1.6.0-rc1.

This currently only aides firmware collection and OS installation for experimenting with tethered boot based development. Support for 14.8.3 has to be added manually to the downloaded installer_data.json for the installation to succeed.

jannau added 3 commits May 21, 2026 17:30
It contains an incomplete firmware dir "C-4388__s-C2" and
"{java,sumatra}_gen*" files which might contain generic data. It's not
immediately obvious how the later are used so skip them for now.

Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: Janne Grunau <j@jannau.net>
Add expert-only install support for M3 / M3 Pro / M3 Max based MacBooks
and iMacs using the 14.8.3 OTA update. 14.8.3 support iis for now
limited to these devices until drivers for HW using iboot loaded
firmware are updated for M1 and M2 based devices.
Support for M3 devices is incomplete. There is still outstanding work
in m1n1 and u-boot for basic support. Currently no operating system
images support the "14.8.3" firmware.

Includes m1n1 update to v1.6.0-rc1.

Signed-off-by: Janne Grunau <j@jannau.net>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant