In assisted startup, create a ramdisk as long as there is at least 58G usable

RAM (lowered from 60G).  Starting in Ubuntu 24.10, they default to reserving
1G for crashkernel, which was dropping some systems with 64G physical memory
below the cutoff

assisted_startup.sh

@@ -274,8 +274,8 @@ else
         swap_location=$(swapon --show=NAME --noheadings)
 
 
-        if [[ $physical_memory -ge 60 && $free_memory -gt 30 && $NO_RAMDISK != 1 ]]; then
-            echo "There is more than 64 gigabytes of RAM. Mounting shared_mem..."
+        if [[ $physical_memory -ge 58 && $free_memory -gt 30 && $NO_RAMDISK != 1 ]]; then
+            echo "There is at least 58 gigabytes of usable RAM. Mounting shared_mem..."
             if [ ! -d "/mnt/haf_shared_mem" ]; then
                 mkdir /mnt/haf_shared_mem
             fi

backend.yaml

@@ -20,7 +20,7 @@ services:
         condition: service_healthy
 
   pgadmin:
-    image: dpage/pgadmin4:${PGADMIN_VERSION:-8.14}
+    image: dpage/pgadmin4:${PGADMIN_VERSION:-9.1.0}
     profiles:
       - admin
     environment: