fix(iso): restore live-build memtest integration

bible-local/docs/iso-build-rules.md

@@ -13,9 +13,10 @@ Use one of:
 
 This applies to:
 - `iso/builder/config/package-lists/*.list.chroot`
-- Any package referenced in `grub.cfg`, hooks, or overlay scripts (e.g. file paths like `/boot/memtest86+x64.bin`)
+- Any package referenced in bootloader configs, hooks, or overlay scripts
 
-## Example of what goes wrong without this
+## Memtest rule
 
-`memtest86+` in Debian bookworm installs `/boot/memtest86+x64.bin`, not `/boot/memtest86+.bin`.
-Guessing the filename caused a broken GRUB entry that only surfaced at boot time, after a full rebuild.
+Prefer live-build's built-in memtest integration over custom hooks or hardcoded
+bootloader paths. If you ever need to reference memtest files manually, verify
+the exact package file list first for the target Debian release.

iso/builder/auto/config

@@ -29,7 +29,7 @@ lb config noauto \
     --security true \
     --linux-flavours "amd64" \
     --linux-packages "${LB_LINUX_PACKAGES}" \
-    --memtest none \
+    --memtest memtest86+ \
     --iso-volume "EASY_BEE_${BEE_GPU_VENDOR_UPPER:-NVIDIA}" \
     --iso-application "EASY-BEE-${BEE_GPU_VENDOR_UPPER:-NVIDIA}" \
     --bootappend-live "boot=live components video=1920x1080 console=tty0 console=ttyS0,115200n8 loglevel=7 username=bee user-fullname=Bee modprobe.blacklist=nouveau" \

iso/builder/config/bootloaders/grub-pc/grub.cfg

@@ -29,16 +29,6 @@ menuentry "EASY-BEE (fail-safe)" {
     initrd  @INITRD_LIVE@
 }
 
-if [ "${grub_platform}" = "efi" ]; then
-    menuentry "Memory Test (memtest86+)" {
-        chainloader /boot/memtest86+x64.efi
-    }
-else
-    menuentry "Memory Test (memtest86+)" {
-        linux16 /boot/memtest86+x64.bin
-    }
-fi
-
 if [ "${grub_platform}" = "efi" ]; then
     menuentry "UEFI Firmware Settings" {
         fwsetup

iso/builder/config/hooks/normal/9100-memtest.hook.binary

@@ -1,76 +0,0 @@
-#!/bin/sh
-# Copy memtest86+ binaries from chroot /boot into the ISO boot directory
-# so GRUB can chainload them directly (they must be on the ISO filesystem,
-# not inside the squashfs).
-#
-# Primary: copy from chroot/boot/ (populated by package postinst).
-# Naming fallbacks:
-#   Debian Bookworm: /boot/memtest86+       — EFI PE64 (no extension)
-#                    /boot/memtest86+.bin    — legacy binary
-#   Upstream/Ubuntu: /boot/memtest86+x64.efi, /boot/memtest86+x64.bin, etc.
-# Last resort: extract directly from the cached .deb if postinst didn't place
-#              the files (happens in chroot environments without grub triggers).
-set -e
-
-MEMTEST_FILES="memtest86+x64.bin memtest86+x64.efi memtest86+ia32.bin memtest86+ia32.efi"
-
-# Ensure destination directory exists (absence caused silent copy failures).
-mkdir -p binary/boot
-
-echo "memtest: scanning chroot/boot/ for memtest files:"
-ls chroot/boot/memtest* 2>/dev/null || echo "memtest: WARNING: no memtest files in chroot/boot/"
-
-# Primary path: copy upstream-named files from chroot/boot/
-for f in ${MEMTEST_FILES}; do
-    src="chroot/boot/${f}"
-    if [ -f "${src}" ]; then
-        cp "${src}" "binary/boot/${f}"
-        echo "memtest: copied ${f} from chroot/boot/"
-    fi
-done
-
-# Debian Bookworm naming fallback: /boot/memtest86+ (no extension) is the EFI binary.
-if [ ! -f "binary/boot/memtest86+x64.efi" ] && [ -f "chroot/boot/memtest86+" ]; then
-    cp "chroot/boot/memtest86+" "binary/boot/memtest86+x64.efi"
-    echo "memtest: copied /boot/memtest86+ as memtest86+x64.efi (Debian naming)"
-fi
-if [ ! -f "binary/boot/memtest86+x64.bin" ] && [ -f "chroot/boot/memtest86+.bin" ]; then
-    cp "chroot/boot/memtest86+.bin" "binary/boot/memtest86+x64.bin"
-    echo "memtest: copied /boot/memtest86+.bin as memtest86+x64.bin (Debian naming)"
-fi
-
-# Last resort: if EFI binary still missing, extract from cached .deb
-if [ ! -f "binary/boot/memtest86+x64.efi" ]; then
-    echo "memtest: EFI binary missing — attempting extraction from .deb cache"
-    deb=$(find chroot/var/cache/apt/archives/ chroot/var/lib/apt/lists/ \
-              -name 'memtest86+_*.deb' -o -name 'memtest86+*.deb' 2>/dev/null \
-          | head -1)
-    if [ -z "$deb" ]; then
-        deb=$(find cache/ -name 'memtest86+_*.deb' -o -name 'memtest86+*.deb' 2>/dev/null | head -1)
-    fi
-    if [ -n "$deb" ]; then
-        echo "memtest: extracting from ${deb}"
-        EXTRACT_DIR="$(mktemp -d)"
-        dpkg-deb -x "${deb}" "${EXTRACT_DIR}"
-        echo "memtest: files found in .deb:"
-        find "${EXTRACT_DIR}/boot" -type f 2>/dev/null || echo "  (none in /boot)"
-        for f in ${MEMTEST_FILES}; do
-            src="${EXTRACT_DIR}/boot/${f}"
-            if [ -f "${src}" ]; then
-                cp "${src}" "binary/boot/${f}"
-                echo "memtest: extracted ${f} from .deb"
-            fi
-        done
-        # Debian naming fallback inside .deb as well
-        if [ ! -f "binary/boot/memtest86+x64.efi" ] && [ -f "${EXTRACT_DIR}/boot/memtest86+" ]; then
-            cp "${EXTRACT_DIR}/boot/memtest86+" "binary/boot/memtest86+x64.efi"
-            echo "memtest: extracted /boot/memtest86+ as memtest86+x64.efi from .deb"
-        fi
-        rm -rf "${EXTRACT_DIR}"
-    else
-        echo "memtest: WARNING: no memtest86+ .deb found in cache — memtest will not be available"
-    fi
-fi
-
-echo "memtest: binary/boot/ contents:"
-ls binary/boot/memtest* 2>/dev/null || echo "  (none)"

iso/builder/config/package-lists/bee.list.chroot

@@ -51,7 +51,6 @@ sudo
 zstd
 mstflint
 memtester
-memtest86+
 stress-ng
 stressapptest