Update 2026-04-17_01:40:23

nvidia-repair.sh

@@ -0,0 +1,121 @@
+#!/bin/zsh
+# Script Version: 04
+# Description: Repair NVIDIA DKMS for the current kernel; ensure canonical symlinks, depmod, initramfs, and optional module reload. Full log to /var/log/nvidia-repair.log
+
+set -euo pipefail
+
+# Set variables
+# ========
+LOG_FILE=/var/log/nvidia-repair.log
+KVER=$(uname -r)
+DKMS_M="nvidia-current"
+DKMS_V="550.163.01"
+UPD_DIR="/lib/modules/${KVER}/updates/dkms"
+
+# Map Debian filenames -> canonical module names
+typeset -A MAP
+MAP=(
+  "nvidia-current.ko.xz"         "nvidia.ko.xz"
+  "nvidia-current-modeset.ko.xz" "nvidia-modeset.ko.xz"
+  "nvidia-current-uvm.ko.xz"     "nvidia-uvm.ko.xz"
+  "nvidia-current-drm.ko.xz"     "nvidia-drm.ko.xz"
+  "nvidia-current-peermem.ko.xz" "nvidia-peermem.ko.xz"
+)
+
+# Knobs: export ISOLATE=0 / RELOAD=0 / UPDATE_INITRD=0 to tweak behavior
+ISOLATE="${ISOLATE:-1}"
+RELOAD="${RELOAD:-1}"
+UPDATE_INITRD="${UPDATE_INITRD:-1}"
+
+# Functions
+# ========
+log() { print -- "[DEBUG] $*"; }
+die() { print -- "[ERROR] $*" >&2; exit 1; }
+cleanup() {
+  local RC=$?
+  if [[ $RC -eq 0 ]]; then log "SUCCESS: NVIDIA DKMS repair finished."
+  else log "FAIL: script exited with code ${RC}."; fi
+  log "Full log: ${LOG_FILE}"
+}
+trap cleanup EXIT
+
+# Logging (stdout+stderr to file and console)
+# ========
+mkdir -p /root/scripts /var/log
+exec > >(tee -a "${LOG_FILE}") 2>&1
+set -x
+
+# Main Process
+# ========
+if [[ "${ISOLATE}" == "1" ]]; then
+  log "Switching to multi-user target (free modules) ..."
+  systemctl isolate multi-user.target || true
+else
+  log "ISOLATE=0 -> Skipping systemctl isolate"
+fi
+
+log "Ensuring kernel headers for ${KVER} ..."
+apt -y install "linux-headers-${KVER}"
+
+log "Removing stale DKMS for this kernel (no --all) ..."
+dkms remove -m "${DKMS_M}" -v "${DKMS_V}" -k "${KVER}" || true
+
+log "Building DKMS ${DKMS_M}/${DKMS_V} for ${KVER} ..."
+dkms build   -m "${DKMS_M}" -v "${DKMS_V}" -k "${KVER}" || true
+
+log "Installing DKMS ${DKMS_M}/${DKMS_V} for ${KVER} ..."
+dkms install -m "${DKMS_M}" -v "${DKMS_V}" -k "${KVER}" || true
+
+log "Ensuring updates dir exists: ${UPD_DIR}"
+mkdir -p "${UPD_DIR}"
+
+log "Creating canonical symlinks -> Debian '...-current' files"
+cd "${UPD_DIR}" || die "Cannot cd ${UPD_DIR}"
+for SRC DST in "${(@kv)MAP}"; do
+  if [[ -e "${SRC}" ]]; then
+    ln -sf "${SRC}" "${DST}"
+  fi
+done
+
+log "Verifying presence of .ko files (real or symlink):"
+ls -l ${UPD_DIR}/nvidia*.ko* || die "No nvidia*.ko files present under ${UPD_DIR}"
+
+log "Refreshing module dependencies (depmod) ..."
+depmod -a "${KVER}"
+
+if [[ "${UPDATE_INITRD}" == "1" ]]; then
+  log "Updating initramfs for ${KVER} ..."
+  update-initramfs -u -k "${KVER}"
+else
+  log "UPDATE_INITRD=0 -> Skipping update-initramfs"
+fi
+
+log "Ensuring KMS option for nvidia-drm ..."
+print -- 'options nvidia-drm modeset=1' > /etc/modprobe.d/nvidia-kms.conf || true
+
+if [[ "${RELOAD}" == "1" ]]; then
+  log "Reloading NVIDIA modules cleanly ..."
+  modprobe -r nvidia_drm nvidia_uvm nvidia_modeset nvidia 2>/dev/null || true
+  modprobe nvidia modeset=1
+  modprobe nvidia_modeset
+  modprobe nvidia_uvm
+  modprobe nvidia_drm modeset=1
+else
+  log "RELOAD=0 -> Skipping module reload"
+fi
+
+log "Sanity: modinfo by NAME"
+for M in nvidia nvidia_modeset nvidia_uvm nvidia_drm; do
+  echo "[$M]"; modinfo "$M" | grep -E '^(filename|version)' || true
+done
+
+log "Sanity: LOADED versions"
+for M in nvidia nvidia_modeset nvidia_uvm nvidia_drm; do
+  printf "[%s] " "$M"; cat /sys/module/$M/version 2>/dev/null || echo "not loaded"
+done
+
+log "Loaded modules summary:"
+lsmod | egrep 'nvidia(_uvm|_modeset|_drm)?\b' || true
+
+set +x
+log "Done. If run from TTY, switch back with: systemctl isolate graphical.target"