Clayton Craft
3c93972ece
I chose this device pkg name because it's descriptive, this pkg doesn't support the 'idevice' things or x86_64 or PPC Macs. I didn't include "generic" because, while it supports Macbooks, (in theory) Mac Minis and something called Mac Studio, it's not really *that* generic for Mac computers AND by having the manufacturer be "Apple" it'll show up in pmb init under "apple." This will make it more intuitive to find, I think. Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7048>
73 lines
1.7 KiB
Bash
73 lines
1.7 KiB
Bash
#!/bin/sh
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# Initramfs hook to setup vendor firmware from ESP for Apple Silicon Macs
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# Extracts firmware.cpio from ESP to /vendorfw in initramfs
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# Also see: https://asahilinux.org/docs/platform/open-os-interop/#os-handling
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set -e
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DT_ESP_FILE="/proc/device-tree/chosen/asahi,efi-system-partition"
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# Check if we're on Apple Silicon Mac
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if [ ! -f "$DT_ESP_FILE" ]; then
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echo "Error: Not on Apple Silicon Mac or missing device tree property" >&2
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exit 1
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fi
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# Read ESP PARTUUID as string
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ESP_PARTUUID=$(cat "$DT_ESP_FILE")
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if [ -z "$ESP_PARTUUID" ]; then
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echo "Error: Failed to read ESP PARTUUID from device tree" >&2
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exit 1
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fi
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echo "Found ESP PARTUUID: $ESP_PARTUUID"
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# Find block device by PARTUUID
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ESP_DEVICE="/dev/disk/by-partuuid/$ESP_PARTUUID"
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if [ ! -b "$ESP_DEVICE" ]; then
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echo "Error: ESP device not found: $ESP_DEVICE" >&2
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exit 1
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fi
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echo "Found ESP device: $ESP_DEVICE"
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# Mount ESP
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if ! mount -t vfat "$ESP_DEVICE" /boot; then
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echo "Error: Failed to mount ESP" >&2
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exit 1
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fi
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echo "Mounted ESP to /boot"
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cleanup() {
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if mountpoint -q /boot 2>/dev/null; then
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umount /boot || echo "Warning: Failed to unmount ESP" >&2
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fi
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}
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trap cleanup EXIT
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# Check if firmware.cpio exists
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if [ ! -f "/boot/vendorfw/firmware.cpio" ]; then
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umount /boot
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echo "Error: Firmware CPIO not found: /boot/vendorfw/firmware.cpio" >&2
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exit 1
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fi
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# Check for existing content and warn
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if [ -n "$(ls -A /vendorfw 2>/dev/null)" ]; then
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echo "Warning: /vendorfw already contains files, overwriting..." >&2
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fi
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# Extract firmware CPIO
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echo "Extracting vendor firmware..."
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cd /
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if ! cpio -dui -F "/boot/vendorfw/firmware.cpio"; then
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echo "Error: Failed to extract firmware CPIO" >&2
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exit 1
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fi
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ln -s /vendorfw /usr/lib/firmware/vendor
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echo "Vendor firmware setup complete"
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