46 lines
1.2 KiB
Bash
46 lines
1.2 KiB
Bash
#!/bin/bash
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[ "$EUID" -ne 0 ] && echo "Run this as root"
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get_largest_cros_blockdev() {
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local largest size dev_name tmp_size remo
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size=0
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for blockdev in /sys/block/*; do
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dev_name="${blockdev##*/}"
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echo -e "$dev_name" | grep -q '^\(loop\|ram\)' && continue
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tmp_size=$(cat "$blockdev"/size)
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remo=$(cat "$blockdev"/removable)
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if [ "$tmp_size" -gt "$size" ] && [ "${remo:-0}" -eq 0 ]; then
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case "$(sfdisk -d "/dev/$dev_name" 2>/dev/null)" in
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*'name="STATE"'*'name="KERN-A"'*'name="ROOT-A"'*)
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largest="/dev/$dev_name"
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size="$tmp_size"
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;;
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esac
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fi
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done
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echo -e "$largest"
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}
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format_part_number() {
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echo -n "$1"
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echo "$1" | grep -q '[0-9]$' && echo -n p
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echo "$2"
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}
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mount /dev/disk/by-label/STATE /mnt/stateful_partition/
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cros_dev="$(get_largest_cros_blockdev)"
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if [ -z "$cros_dev" ]; then
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echo "No CrOS SSD found on device. Failing."
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exit 1
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fi
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stateful=$(format_part_number "$cros_dev" 1)
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mkfs.ext4 -F "$stateful" # This only wipes the stateful partition
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mount "$stateful" /tmp
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mkdir -p /tmp/unencrypted
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cp /mnt/stateful_partition/usr/share/packeddata/. /tmp/unencrypted/ -rvf
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chown 1000 /tmp/unencrypted/PKIMetadata -R
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rm /tmp/.developer_mode
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umount /tmp
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crossystem disable_dev_request=1
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