Simplify lxc-attach logging and terminal handling

Remove host-side tee capture of lxc-attach output and PIPESTATUS handling; lxc-attach is now invoked directly and the exit code is taken from $?. Simplify install log retrieval by pulling /root/.install-<SESSION_ID>.log directly and removing the fallback that used the host-captured terminal log, related temp-file size checks, and timeout logic. Remove terminal-state restores and input-draining (stty/dd) and stop redirecting reads from /dev/tty so interactive reads use standard input; similar simplifications applied to the retry flow. Also remove cleanup of the discarded capture log. These changes reduce complexity and terminal manipulation, at the cost of losing the previous terminal-capture fallback for installs that failed to produce a container-side log.

misc/build.func

@@ -4094,19 +4094,8 @@ EOF'
     # that sends "configuring" status AFTER the host already reported "failed"
     export CONTAINER_INSTALLING=true
 
-    # Capture lxc-attach terminal output to host-side log via tee.
+    lxc-attach -n "$CTID" -- bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/install/${var_install}.sh)"
-    # This is the ONLY reliable way to get install output when:
+    local lxc_exit=$?
-    #   - install.func fails to load (DNS error) → no container-side logging
-    #   - install script crashes before logging starts
-    #   - $STD/silent() not used for some commands
-    # PIPESTATUS[0] gets the real exit code from lxc-attach (not from tee).
-    # stdin comes from /dev/tty so install scripts can use interactive `read`.
-    local _LXC_CAPTURE_LOG="/tmp/.install-capture-${SESSION_ID}.log"
-    lxc-attach -n "$CTID" -- bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/install/${var_install}.sh)" </dev/tty 2>&1 | tee "$_LXC_CAPTURE_LOG"
-    local lxc_exit=${PIPESTATUS[0]}
-
-    # Restore terminal state after pipeline (tee/lxc-attach may leave it broken)
-    stty sane 2>/dev/null || true
 
     unset CONTAINER_INSTALLING
 
@@ -4168,19 +4157,9 @@ EOF'
         build_log_copied=true
       fi
 
-      # Copy and append INSTALL_LOG from container (with timeout to prevent hangs)
+      # Copy and append INSTALL_LOG from container
       local temp_install_log="/tmp/.install-temp-${SESSION_ID}.log"
-      local container_log_ok=false
+      if pct pull "$CTID" "/root/.install-${SESSION_ID}.log" "$temp_install_log" 2>/dev/null; then
-      if timeout 8 pct pull "$CTID" "/root/.install-${SESSION_ID}.log" "$temp_install_log" 2>/dev/null; then
-        # Only use container log if it has meaningful content (>100 bytes)
-        if [[ -s "$temp_install_log" ]] && [[ $(stat -c%s "$temp_install_log" 2>/dev/null || echo 0) -gt 100 ]]; then
-          container_log_ok=true
-        fi
-      fi
-
-      # PHASE 2: Use container-side log if available, otherwise use host-captured tee output
-      local _LXC_CAPTURE_LOG="/tmp/.install-capture-${SESSION_ID}.log"
-      if [[ "$container_log_ok" == true ]]; then
         {
           echo "================================================================================"
           echo "PHASE 2: APPLICATION INSTALLATION (Container)"
@@ -4188,24 +4167,8 @@ EOF'
           cat "$temp_install_log"
           echo ""
         } >>"$combined_log"
+        rm -f "$temp_install_log"
         install_log_copied=true
-      elif [[ -s "$_LXC_CAPTURE_LOG" ]]; then
-        # Fallback: host-captured terminal output from lxc-attach
-        # This captures everything the user saw, including errors when install.func
-        # failed to load (DNS issues, etc.) and no container-side logging was set up.
-        {
-          echo "================================================================================"
-          echo "PHASE 2: APPLICATION INSTALLATION (Container - captured from terminal)"
-          echo "================================================================================"
-          # Strip ANSI escape codes from terminal capture
-          sed 's/\x1b\[[0-9;]*[a-zA-Z]//g' "$_LXC_CAPTURE_LOG" | sed 's/\r$//'
-          echo ""
-        } >>"$combined_log"
-        install_log_copied=true
-      fi
-      rm -f "$temp_install_log"
-
-      if [[ "$install_log_copied" == true ]]; then
         # Point INSTALL_LOG to combined log so get_full_log() finds it
         INSTALL_LOG="$combined_log"
       fi
@@ -4391,16 +4354,8 @@ EOF'
     echo ""
     echo -en "${YW}Select option [1-${max_option}] (default: 1, auto-remove in 60s): ${CL}"
 
-    # Restore terminal state after lxc-attach|tee pipeline
-    stty sane 2>/dev/null || true
-    # Drain stale input from terminal buffer (lxc-attach|tee leaves residual data
-    # that causes read to return immediately with empty input)
-    dd iflag=nonblock if=/dev/tty of=/dev/null 2>/dev/null || true
-    sleep 0.3
-
-    # Read user choice
     local response=""
-    if read -t 60 -r response </dev/tty; then
+    if read -t 60 -r response; then
       case "${response:-1}" in
       1)
         # Remove container
@@ -4487,10 +4442,8 @@ EOF'
           # Re-run install script in existing container (don't destroy/recreate)
           set +Eeuo pipefail
           trap - ERR
-          local _LXC_CAPTURE_LOG="/tmp/.install-capture-${SESSION_ID}.log"
+          lxc-attach -n "$CTID" -- bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/install/${var_install}.sh)"
-          lxc-attach -n "$CTID" -- bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/install/${var_install}.sh)" </dev/tty 2>&1 | tee "$_LXC_CAPTURE_LOG"
+          local apt_retry_exit=$?
-          local apt_retry_exit=${PIPESTATUS[0]}
-          stty sane 2>/dev/null || true
           set -Eeuo pipefail
           trap 'error_handler' ERR
 
@@ -4600,9 +4553,6 @@ EOF'
     exit $install_exit_code
   fi
 
-  # Clean up host-side capture log (not needed on success, already in combined_log on failure)
-  rm -f "/tmp/.install-capture-${SESSION_ID}.log" 2>/dev/null
-
   # Re-enable error handling after successful install or recovery menu completion
   set -Eeuo pipefail
   trap 'error_handler' ERR

misc/error_handler.func

@@ -286,12 +286,9 @@ error_handler() {
         echo -en "${YW}Remove broken container ${CTID}? (Y/n) [auto-remove in 60s]: ${CL}"
       fi
 
-      # Reset terminal state and flush stale input from buffer
+      # Read user response
-      stty sane 2>/dev/null || true
-      dd iflag=nonblock if=/dev/tty of=/dev/null 2>/dev/null || true
-      sleep 0.3
       local response=""
-      if read -t 60 -r response </dev/tty; then
+      if read -t 60 -r response; then
         if [[ -z "$response" || "$response" =~ ^[Yy]$ ]]; then
           echo ""
           if declare -f msg_info >/dev/null 2>&1; then