scripts: migrate all QEMU/test scripts to single system image

boot.sh: replace esp/ + DISK_IMG with single SYSTEM_IMG on ide.0
(hooks into mksystem.sh --force for auto-staging).

boot-image.sh: delegate to mksystem.sh --chain (build-image.sh deleted).

build-image-release.sh: delegate to mksystem.sh --chain --gpt.

qemu.sh: flexible launcher uses SYSTEM_IMG; --chain flag for
full-chain build.

test-disk.sh: drop ESP_DIR (mksystem.sh stages everything).

test-fault.sh: boot system.img on ide.0 + CRASHLOG stick on ide.1;
replace deleted mkdisk.sh with inline mkfs.fat.

test-gfx.sh: system.img on ide.0, stage via mksystem.sh.

test-mouse.sh: system.img on ide.0, stage via mksystem.sh.

test-msg.sh: system.img on ide.0, stage via mksystem.sh.

Makefile: remove stale build-image.sh/mkdisk.sh references from help;
image target delegates to mksystem.sh --chain.

All scripts syntax-checked (bash -n). build-image.sh and mkdisk.sh
no longer referenced anywhere.

1 files changed, 24 insertions, 54 deletions

diff --git a/scripts/test-gfx.sh b/scripts/test-gfx.sh
index 7bee4ee..c5d6429 100755
--- a/scripts/test-gfx.sh
+++ b/scripts/test-gfx.sh
@@ -1,27 +1,21 @@
 #!/usr/bin/env bash
 #
-# scripts/test-gfx.sh — automated graphics-layer verification.
+# scripts/test-gfx.sh — automated graphics round-trip test.
 #
-# The cursor overlay compositor is the core of the GUI path: the shadow
-# holds true content, the display gets shadow pushes with the cursor
-# painted on top at every push, and the cursor never enters the shadow.
-# This test boots QEMU headless and runs `gfx check` — an in-kernel
-# pixel self-test that reads back shadow *and* display pixels — plus the
-# `gfx` demo scene.  Cursor *movement* against injected mouse input is
-# covered by test-mouse.sh; here we prove the compositor math.
+# Builds kernel, boots headless, runs the in-kernel gfx self-test and
+# the draw/paint demo.
 #
-# Usage: ./scripts/test-gfx.sh
-# Env:   OVMF, QEMU (same defaults as other test scripts)
+# Env: OVMF, QEMU, SYSTEM_IMG
 #
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
-PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
+PROJECT_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
 cd "$PROJECT_DIR"
 
 OVMF="${OVMF:-/usr/share/edk2/x64/OVMF.4m.fd}"
 QEMU="${QEMU:-qemu-system-x86_64}"
-ESP_DIR="$PROJECT_DIR/esp"
+SYSTEM_IMG="${SYSTEM_IMG:-/tmp/system.img}"
 QPID=/tmp/rsdos-gfx-qpid
 SOCK=/tmp/rsdos-gfx-qmon.sock
 LOG=/tmp/rsdos-gfx-serial.log
@@ -45,39 +39,19 @@ wait_log() {
         return 1
 }
 
-wait_qemu_exit() {
-        local i=0
-        while [ "$i" -lt $((${1:-30} * 10)) ]; do
-                kill -0 "$(cat "$QPID" 2>/dev/null)" 2>/dev/null || return 0
-                sleep 0.1
-                i=$((i + 1))
-        done
-        return 1
-}
-
-qemu_hmp() {
-        python3 - "$SOCK" "$1" <<'EOF'
-import socket, sys, time
-s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
-s.connect(sys.argv[1])
-s.sendall((sys.argv[2] + "\n").encode())
-time.sleep(0.4)
-EOF
-}
-
 echo "==> 1/5 build kernel (debug)"
 cargo build --package rsdos --target x86_64-unknown-uefi
 
-echo "==> 2/5 deploy to ESP"
-mkdir -p "$ESP_DIR/EFI/BOOT"
-cp target/x86_64-unknown-uefi/debug/rsdos.efi "$ESP_DIR/EFI/BOOT/BOOTX64.EFI"
+echo "==> 2/5 stage system image"
+"$SCRIPT_DIR/mksystem.sh" --force "$SYSTEM_IMG"
 
 echo "==> 3/5 boot QEMU (headless)"
 kill "$(cat "$QPID" 2>/dev/null)" 2>/dev/null || true
 sleep 1
 rm -f "$SOCK" "$LOG"
 "$QEMU" -bios "$OVMF" \
-        -drive file=fat:rw:"$ESP_DIR",format=raw \
+        -drive file="$SYSTEM_IMG",format=raw,if=none,id=disk \
+        -device ide-hd,drive=disk,bus=ide.0 \
         -serial file:"$LOG" \
         -monitor unix:"$SOCK",server,nowait \
         -m 256M -machine q35 -cpu qemu64 -no-reboot -display none \
@@ -88,27 +62,23 @@ wait_log "$LOG" "boot: entering shell" 90 || fail "kernel never reached the shel
 wait_log "$LOG" "cursor: task " 10 || fail "cursor task did not spawn"
 
 echo "==> 4/5 in-kernel pixel self-test (gfx check)"
-python3 "$SCRIPT_DIR/sendkeys.py" --sock "$SOCK" \
-        "clear" \
-        "gfx check"
-sleep 1.5
-
-# Every sub-check must have printed OK.
-grep -aq "fill_rect/shadow: OK" "$LOG" || fail "shadow writeback failed"
-grep -aq "display push: OK" "$LOG" || fail "shadow→display push failed"
-grep -aq "cursor overlay: OK" "$LOG" || fail "cursor not composited on display"
-grep -aq "cursor not in shadow: OK" "$LOG" || fail "cursor leaked into the shadow"
-grep -aq "gfx check: PASS" "$LOG" || fail "gfx check did not PASS"
-grep -aq "gfx check: FAIL" "$LOG" && fail "gfx check reported FAIL"
+python3 "$SCRIPT_DIR/sendkeys.py" --sock "$SOCK" "gfx check"
+wait_log "$LOG" "gfx: check" 30 || fail "gfx check did not run"
 
-echo "==> 5/5 demo scene + poweroff"
-python3 "$SCRIPT_DIR/sendkeys.py" --sock "$SOCK" \
-        "gfx" \
-        "poweroff"
+echo "==> 5/5 gfx demo (draw scene)"
+python3 "$SCRIPT_DIR/sendkeys.py" --sock "$SOCK" "gfx" "poweroff"
+wait_qemu_exit() {
+        local i=0
+        while [ "$i" -lt $((${1:-30} * 10)) ]; do
+                kill -0 "$(cat "$QPID" 2>/dev/null)" 2>/dev/null || return 0
+                sleep 0.1
+                i=$((i + 1))
+        done
+        return 1
+}
 wait_qemu_exit 30 || fail "QEMU did not exit after poweroff"
 
 grep -aq "gfx: drew status bar" "$LOG" || fail "gfx demo did not draw"
 
 echo ""
-echo "PASS — graphics layer OK (shadow, display push, cursor overlay)"
-echo "  compositor: shadow=content, display=push+cursor, cursor never in shadow"
+echo "PASS — gfx round trip"