67 lines
2.1 KiB
Bash
Executable File
67 lines
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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IMG="$HOME/Documents/toes-image-builder/toes-ubuntu-base.img"
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USBBOOT="$HOME/apps/forks/usbboot"
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list_external_disks() {
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diskutil list external physical 2>/dev/null | awk '/^\/dev\/disk[0-9]+ / { sub("^/dev/", "", $1); print $1 }' | sort || true
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}
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disk_bytes() {
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diskutil info "/dev/$1" | awk -F'[()]' '/Disk Size:/ { sub(/ Bytes.*/, "", $2); print $2; exit }'
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}
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if [[ "${SKIP_BUILD:-0}" != 1 ]]; then
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ssh toes-image-builder 'cd toes-image-builder && ./build.sh && cp build/toes-ubuntu-base.img /mnt/utm/toes-image-builder/'
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fi
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[[ -f "$IMG" ]] || { echo "missing $IMG" >&2; exit 1; }
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target="${DISK:-}"
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if [[ -n "$target" ]]; then
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target="${target#/dev/}"
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target="${target#r}"
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else
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before="$(mktemp)"
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after="$(mktemp)"
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trap 'rm -f "$before" "$after"' EXIT
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list_external_disks >"$before"
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sudo "$USBBOOT/rpiboot" -d "$USBBOOT/mass-storage-gadget64"
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for _ in {1..30}; do
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list_external_disks >"$after"
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new="$(comm -13 "$before" "$after")"
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[[ -n "$new" ]] && { sleep 2; list_external_disks >"$after"; new="$(comm -13 "$before" "$after")"; break; }
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sleep 1
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done
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[[ -n "${new:-}" ]] || { echo "no new disks" >&2; exit 1; }
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echo "New disks:"
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target_size=0
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for disk in $new; do
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bytes="$(disk_bytes "$disk")"
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echo " /dev/$disk ${bytes:-?} bytes"
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[[ "$bytes" =~ ^[0-9]+$ ]] && (( bytes > target_size )) && { target="$disk"; target_size="$bytes"; }
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done
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fi
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[[ "${target:-}" =~ ^disk[0-9]+$ ]] || { echo "bad disk: ${target:-}" >&2; exit 1; }
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target_size="$(disk_bytes "$target")"
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image_size="$(stat -f %z "$IMG")"
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[[ "$target_size" =~ ^[0-9]+$ ]] || { echo "could not size /dev/$target" >&2; exit 1; }
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(( target_size >= image_size )) || { echo "/dev/$target is smaller than $IMG" >&2; exit 1; }
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echo "Selected /dev/$target"
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echo "Image: $IMG"
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diskutil info "/dev/$target"
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printf 'Type FLASH to erase /dev/%s: ' "$target"
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read -r answer
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[[ "$answer" == FLASH ]] || { echo "aborted"; exit 1; }
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diskutil unmountDisk "/dev/$target"
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sudo dd if="$IMG" of="/dev/r$target" bs=16m status=progress conv=fsync
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sync
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diskutil eject "/dev/$target"
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