68 lines
1.7 KiB
Bash
68 lines
1.7 KiB
Bash
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#!/bin/bash
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set -e
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if [ "$DEBUG" ]; then
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set -x
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fi
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make_mountable() {
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sh lib/ssd_util.sh --no_resign_kernel --remove_rootfs_verification -i $1
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printf '\000' | dd of=$1 seek=$((0x464 + 3)) conv=notrunc count=1 bs=1
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}
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partition_disk() {
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local image_path=$(realpath "${1}")
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local bootloader_size=${2}
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#create partitions
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(
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echo g #new gpt disk label
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#create 1MB stateful
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echo n #new partition
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echo #accept default parition number
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echo #accept default first sector
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echo +1M #partition size is 1M
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#create 32MB kernel partition
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echo n
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echo #accept default parition number
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echo #accept default first sector
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echo +32M #partition size is 32M
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echo t #change partition type
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echo #accept default parition number
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echo FE3A2A5D-4F32-41A7-B725-ACCC3285A309 #chromeos kernel type
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#create bootloader partition
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echo n
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echo #accept default parition number
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echo #accept default first sector
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echo "+${bootloader_size}M" #set partition size
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echo t #change partition type
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echo #accept default parition number
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echo 3CB8E202-3B7E-47DD-8A3C-7FF2A13CFCEC #chromeos rootfs type
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#create rootfs partition
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echo n
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echo #accept default parition number
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echo #accept default first sector
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echo #accept default size to fill rest of image
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#write changes
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echo w
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) | fdisk $image_path
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}
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create_image() {
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local image_path=$(realpath "${1}")
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local bootloader_size=${2}
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local rootfs_size=${3}
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#stateful + kernel + bootloader + rootfs
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local total_size=$((1 + 32 + $bootloader_size + $rootfs_size))
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dd if=/dev/zero of=$image_path bs=1M oflag=sync count=$total_size status=progress
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partition_disk $image_path $bootloader_size
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}
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create_image ./test.bin 20 200
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