From a275bf59efa819f3ce67d81b3d2de94917309239 Mon Sep 17 00:00:00 2001
From: MickLesk <47820557+MickLesk@users.noreply.github.com>
Date: Fri, 23 Oct 2026 10:20:54 +0200
Subject: [PATCH] Skip the resource check when the container cannot read its
 RAM

With a broken lxcfs mount on the host, free fails with 'Unable to create meminfo structure' and the check stopped the whole update (ProxmoxVE #18045). It now warns and lets the update run.
---
 ui/menu.func | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/ui/menu.func b/ui/menu.func
index 3bb32e4..36116ca 100644
--- a/ui/menu.func
+++ b/ui/menu.func
@@ -432,8 +432,13 @@ settings_menu() {
 # - Warns if under-provisioned and asks user to continue or abort
 # ------------------------------------------------------------------------------
 check_container_resources() {
-  current_ram=$(free -m | awk 'NR==2{print $2}')
-  current_cpu=$(nproc)
+  current_ram=$(free -m 2>/dev/null | awk 'NR==2{print $2}' || true)
+  current_cpu=$(nproc 2>/dev/null || true)
+  # A broken lxcfs mount on the host leaves /proc/meminfo unreadable; that is no reason to stop the update
+  if [[ ! "$current_ram" =~ ^[0-9]+$ || ! "$current_cpu" =~ ^[0-9]+$ ]]; then
+    msg_warn "Could not read this container's RAM or CPU count, skipping the resource check"
+    return 0
+  fi
 
   if [[ "$current_ram" -lt "$var_ram" ]] || [[ "$current_cpu" -lt "$var_cpu" ]]; then
     echo -e "\n${INFO}${HOLD} ${GN}Required: ${var_cpu} CPU, ${var_ram}MB RAM ${CL}| ${RD}Current: ${current_cpu} CPU, ${current_ram}MB RAM${CL}"