1 files changed, 30 insertions, 0 deletions
diff --git a/f3s/pi-netbsd/flash/build-flasher.sh b/f3s/pi-netbsd/flash/build-flasher.sh
new file mode 100755
index 0000000..80f66fe
--- /dev/null
+++ b/f3s/pi-netbsd/flash/build-flasher.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# Stage B, step 2 — run on the Pi (as root via sudo). Installs the 95netbsdflash
+# dracut module and builds a standalone /boot/flasher.img that the Pi firmware
+# loads via config.txt. Does NOT arm or reboot (see README Stage B steps 3-4).
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+KVER=$(uname -r)
+MODDIR=/usr/lib/dracut/modules.d/95netbsdflash
+OUT=/boot/flasher.img
+
+echo "== install dracut module 'netbsdflash' =="
+mkdir -p "$MODDIR"
+install -m0755 "$HERE/95netbsdflash/module-setup.sh" "$MODDIR/module-setup.sh"
+install -m0755 "$HERE/95netbsdflash/flash.sh"        "$MODDIR/flash.sh"
+
+echo "== keep an untouched backup of the default initramfs (first time only) =="
+cp -n "/boot/initramfs-$KVER.img" "/boot/initramfs-$KVER.img.orig" 2>/dev/null || true
+
+echo "== build $OUT for kernel $KVER =="
+# ext4/vfat/mmc/nls are built-in on the RPi kernel, but --add-drivers is harmless
+dracut --force --no-hostonly \
+    --add netbsdflash \
+    --add-drivers "vfat nls_cp437 nls_ascii ext4 mmc_block sdhci sdhci-iproc" \
+    "$OUT" "$KVER"
+
+ls -la "$OUT"
+echo "== sanity: hook present in initramfs =="
+lsinitrd "$OUT" | grep -E 'pre-mount/99-flash.sh' && echo "hook OK" || { echo "HOOK MISSING"; exit 1; }
+echo "== done. Arm with a /boot/config.txt + /boot/netbsd-flash-mode (see README). =="