56 lines
2.5 KiB
Bash
56 lines
2.5 KiB
Bash
#!/usr/bin/env bash
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# Run on the Proxmox host (as root) when rpiboot fails with "No 'bootcode' files found" / "rpiboot gadget empty".
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# Cause: mass-storage-gadget64 has no real boot files (broken symlinks or Git LFS not pulled).
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# This script removes broken symlinks and extracts bootcode4.bin from the installed rpiboot binary.
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#
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# On host: bash fix-gadget-bootcode-on-host.sh
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# From your machine: ssh root@HOST 'bash -s' < chromium-setup/emmc-provisioning/scripts/fix-gadget-bootcode-on-host.sh
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set -e
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GADGET="${1:-/opt/usbboot/mass-storage-gadget64}"
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RPIBOOT="${2:-/opt/usbboot/rpiboot}"
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[[ -d "$GADGET" ]] || { echo "Error: $GADGET not found"; exit 1; }
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[[ -x "$RPIBOOT" ]] || { echo "Error: $RPIBOOT not found (install usbboot first: install-usbboot-on-host.sh)"; exit 1; }
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# Ensure readelf and objdump are available (binutils)
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for cmd in readelf objdump; do
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if ! command -v "$cmd" &>/dev/null; then
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echo "Installing binutils (required for $cmd)..."
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apt-get update -qq && apt-get install -y -qq binutils 2>/dev/null || {
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echo "Error: $cmd not found. Install binutils: apt-get install -y binutils"
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exit 1
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}
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break
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fi
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done
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# Remove broken symlinks in gadget dir so we can replace with real boot file
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for f in bootfiles.bin bootcode.bin bootcode4.bin bootcode5.bin; do
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if [[ -L "$GADGET/$f" ]] && ! [[ -f "$GADGET/$f" ]]; then
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rm -f "$GADGET/$f"
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echo "Removed broken symlink $GADGET/$f"
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fi
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done
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# If we already have a valid boot file, done
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if [[ -f "$GADGET/bootcode4.bin" ]] || [[ -f "$GADGET/bootfiles.bin" ]]; then
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echo "Already has bootcode4.bin or valid bootfiles.bin. OK."
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exit 0
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fi
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# Get .data section file offset and address from ELF
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readelf -S "$RPIBOOT" | grep -q "\.data" || { echo "No .data section"; exit 1; }
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DATA_OFF=$(readelf -S "$RPIBOOT" | awk '/\.data\s/ { print "0x"$5; exit }')
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DATA_ADDR=$(readelf -S "$RPIBOOT" | awk '/\.data\s/ { print "0x"$4; exit }')
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LEN_SYM=$(objdump -t "$RPIBOOT" | awk '/msd_bootcode4_bin_len/ { print $1; exit }')
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BIN_SYM=$(objdump -t "$RPIBOOT" | awk '/msd_bootcode4_bin\s/ { print $1; exit }')
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[[ -n "$LEN_SYM" && -n "$BIN_SYM" ]] || { echo "msd_bootcode4_bin symbols not found in rpiboot"; exit 1; }
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LEN_ADDR=$((0x$LEN_SYM))
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BIN_ADDR=$((0x$BIN_SYM))
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LEN_OFF=$((DATA_OFF + LEN_ADDR - DATA_ADDR))
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BIN_OFF=$((DATA_OFF + BIN_ADDR - DATA_ADDR))
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LEN=$(dd if="$RPIBOOT" bs=1 skip=$LEN_OFF count=4 2>/dev/null | od -An -t u4 | tr -d ' ')
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dd if="$RPIBOOT" of="$GADGET/bootcode4.bin" bs=1 skip=$BIN_OFF count=$LEN 2>/dev/null
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echo "Wrote $GADGET/bootcode4.bin ($LEN bytes). Verify: $RPIBOOT -d $GADGET -V" |