Aelin
06bdbdba69
This is a bootloader for Open Firmware PowerPC systems that we will use to replace grub-ieee1275 in device-generic-ppc64le. Due to its use of RUSTC_BOOTSTRAP, this APKBUILD cannot go to Alpine at the moment, but once the Rust targets are added upstream, this can be moved to aports. Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/9002>
47 lines
1.3 KiB
Bash
47 lines
1.3 KiB
Bash
#!/bin/sh
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if [ ! -f /usr/lib/powervm-boot/powervm-boot ]; then
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echo "powervm-boot not found"
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exit
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fi
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PREP_GUID="9e1a2d38-c612-4316-aa26-8b49521e5a8b"
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PREP_TYPE=0x41
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lsblk -nrpo NAME,TYPE,PARTTYPE |
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while read -r dev type parttype; do
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[ "$type" = "part" ] || continue
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case "$(printf '%s' "$parttype" | tr '[:upper:]' '[:lower:]')" in
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"$PREP_GUID"|"$PREP_TYPE")
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echo "Found PReP boot partition $dev"
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magic=$(dd if="$dev" bs=1 count=4 2>/dev/null | od -An -tx1 | tr -d ' \n')
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if [ "$magic" != "7f454c46" ]; then
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echo "Not an ELF file"
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continue
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fi
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class=$(dd if="$dev" bs=1 skip=4 count=1 2>/dev/null | od -An -tu1 | tr -d ' ')
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if [ "$class" != "1" ]; then
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echo "Not ELF32"
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continue
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fi
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machine=$(dd if="$dev" bs=1 skip=18 count=2 2>/dev/null | od -An -tx1 | tr -d ' \n')
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if [ "$machine" != "0014" ]; then
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echo "Not PowerPC ELF"
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continue
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fi
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echo "PReP boot partition with bootloader installed detected, flashing powervm-boot"
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dd if=/usr/lib/powervm-boot/powervm-boot of="$dev" bs=512 conv=notrunc
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sync
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;;
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esac
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done
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