diff --git a/iso/builder/build-dcgm.sh b/iso/builder/build-dcgm.sh
deleted file mode 100755
index 10f9a61..0000000
--- a/iso/builder/build-dcgm.sh
+++ /dev/null
@@ -1,125 +0,0 @@
-#!/bin/sh
-# build-dcgm.sh — pre-download DCGM and nvidia-fabricmanager .deb packages
-# from the NVIDIA CUDA apt repository (Debian 12, x86_64) on the build host,
-# then place them into config/packages.chroot/ so live-build creates a local
-# apt repository inside the chroot.  This avoids requiring the NVIDIA CUDA
-# HTTPS source to be reachable from within the live-build container chroot.
-
-set -e
-
-DCGM_VERSION="$1"
-FABRICMANAGER_VERSION="$2"
-LB_DIR="$3"
-
-[ -n "$DCGM_VERSION" ]          || { echo "usage: $0 <dcgm-version> <fabricmanager-version> <lb-work-dir>"; exit 1; }
-[ -n "$FABRICMANAGER_VERSION" ] || { echo "usage: $0 <dcgm-version> <fabricmanager-version> <lb-work-dir>"; exit 1; }
-[ -n "$LB_DIR" ]                || { echo "usage: $0 <dcgm-version> <fabricmanager-version> <lb-work-dir>"; exit 1; }
-
-REPO_BASE="https://developer.download.nvidia.com/compute/cuda/repos/debian12/x86_64"
-CACHE_ROOT="${BEE_CACHE_DIR:-$(dirname "$LB_DIR")/cache}"
-DOWNLOAD_CACHE_DIR="${CACHE_ROOT}/dcgm-downloads"
-PACKAGES_GZ="${DOWNLOAD_CACHE_DIR}/Packages.gz"
-PKG_CHROOT_DIR="${LB_DIR}/config/packages.chroot"
-
-PACKAGES="
-datacenter-gpu-manager-4-core=1:${DCGM_VERSION}
-datacenter-gpu-manager-4-cuda13=1:${DCGM_VERSION}
-datacenter-gpu-manager-4-proprietary=1:${DCGM_VERSION}
-datacenter-gpu-manager-4-proprietary-cuda13=1:${DCGM_VERSION}
-nvidia-fabricmanager=${FABRICMANAGER_VERSION}
-"
-
-echo "=== DCGM ${DCGM_VERSION} / nvidia-fabricmanager ${FABRICMANAGER_VERSION} ==="
-
-# Check if all target .deb files are already present in packages.chroot
-all_cached=1
-for entry in $PACKAGES; do
-    pkg="${entry%%=*}"
-    if ! ls "${PKG_CHROOT_DIR}/${pkg}_"*.deb >/dev/null 2>&1; then
-        all_cached=0
-        break
-    fi
-done
-if [ "$all_cached" = "1" ]; then
-    echo "=== DCGM packages already in packages.chroot, skipping download ==="
-    ls "${PKG_CHROOT_DIR}/datacenter-gpu-manager-4"*.deb "${PKG_CHROOT_DIR}/nvidia-fabricmanager_"*.deb 2>/dev/null || true
-    exit 0
-fi
-
-mkdir -p "${DOWNLOAD_CACHE_DIR}" "${PKG_CHROOT_DIR}"
-
-echo "=== downloading Packages.gz ==="
-wget -q -O "${PACKAGES_GZ}" "${REPO_BASE}/Packages.gz"
-
-lookup_pkg() {
-    pkg="$1"
-    ver="$2"
-    gzip -dc "${PACKAGES_GZ}" | awk -v pkg="$pkg" -v ver="$ver" '
-        /^Package: / { cur_pkg=$2; gsub(/\r/, "", cur_pkg) }
-        /^Version: / { cur_ver=$2; gsub(/\r/, "", cur_ver) }
-        /^Filename: / { cur_file=$2; gsub(/\r/, "", cur_file) }
-        /^SHA256: / { cur_sha=$2; gsub(/\r/, "", cur_sha) }
-        /^$/ {
-            if (cur_pkg == pkg && (ver == "" || cur_ver == ver)) {
-                print cur_file " " cur_sha
-                printed=1
-                exit
-            }
-            cur_pkg=""; cur_ver=""; cur_file=""; cur_sha=""
-        }
-        END {
-            if (!printed && cur_pkg == pkg && (ver == "" || cur_ver == ver)) {
-                print cur_file " " cur_sha
-            }
-        }'
-}
-
-download_deb() {
-    pkg="$1"
-    ver="$2"
-
-    meta="$(lookup_pkg "$pkg" "$ver")"
-    [ -n "$meta" ] || { echo "ERROR: package not found in repo: ${pkg} ${ver}"; exit 1; }
-
-    repo_file="$(printf '%s\n' "$meta" | awk '{print $1}')"
-    repo_sha="$(printf '%s\n' "$meta" | awk '{print $2}')"
-    [ -n "$repo_file" ] || { echo "ERROR: filename missing for ${pkg}"; exit 1; }
-    [ -n "$repo_sha" ]  || { echo "ERROR: sha256 missing for ${pkg}"; exit 1; }
-
-    deb_name="$(basename "$repo_file")"
-    cached="${DOWNLOAD_CACHE_DIR}/${deb_name}"
-
-    if [ -f "$cached" ]; then
-        actual_sha="$(sha256sum "$cached" | awk '{print $1}')"
-        if [ "$actual_sha" = "$repo_sha" ]; then
-            echo "=== cached: ${deb_name} ==="
-        else
-            echo "=== removing stale: ${deb_name} (sha256 mismatch) ==="
-            rm -f "$cached"
-            wget --show-progress -O "$cached" "${REPO_BASE}/${deb_name}"
-        fi
-    else
-        wget --show-progress -O "$cached" "${REPO_BASE}/${deb_name}"
-    fi
-
-    actual_sha="$(sha256sum "$cached" | awk '{print $1}')"
-    if [ "$actual_sha" != "$repo_sha" ]; then
-        echo "ERROR: sha256 mismatch for ${deb_name}" >&2
-        echo "  expected: $repo_sha" >&2
-        echo "  actual:   $actual_sha" >&2
-        rm -f "$cached"
-        exit 1
-    fi
-    echo "sha256 OK: ${deb_name}"
-
-    cp -f "$cached" "${PKG_CHROOT_DIR}/${deb_name}"
-}
-
-for entry in $PACKAGES; do
-    pkg="${entry%%=*}"
-    ver="${entry#*=}"
-    download_deb "$pkg" "$ver"
-done
-
-echo "=== DCGM packages ready in ${PKG_CHROOT_DIR} ==="
-ls "${PKG_CHROOT_DIR}/datacenter-gpu-manager-4"*.deb "${PKG_CHROOT_DIR}/nvidia-fabricmanager_"*.deb 2>/dev/null || true
diff --git a/iso/builder/build.sh b/iso/builder/build.sh
index 47f8682..d86b246 100755
--- a/iso/builder/build.sh
+++ b/iso/builder/build.sh
@@ -1296,18 +1296,6 @@ if [ -f "${LB_INCLUDES}/root/.ssh/authorized_keys" ]; then
     chmod 600 "${LB_INCLUDES}/root/.ssh/authorized_keys"
 fi
 
-# --- pre-download NVIDIA apt packages into config/packages.chroot ---
-# live-build creates a local apt repo from config/packages.chroot/*.deb so the
-# chroot can install them without reaching the NVIDIA CUDA HTTPS source.
-if [ "$BEE_GPU_VENDOR" = "nvidia" ]; then
-    run_step "download DCGM ${DCGM_VERSION} / fabricmanager ${NVIDIA_FABRICMANAGER_VERSION} packages" \
-        "25-dcgm" \
-        sh "${BUILDER_DIR}/build-dcgm.sh" \
-        "${DCGM_VERSION}" \
-        "${NVIDIA_FABRICMANAGER_VERSION}" \
-        "${LB_DIR}"
-fi
-
 # --- build ISO using live-build ---
 echo ""
 echo "=== building ISO (variant: ${BUILD_VARIANT}) ==="