increase memory requirement to 1.5G

NixOS seems to require more memory and without bigger re-engineering
i.e. only use the initrd filesystem this seems to be hard to come by.

Author: Mic92

docs/requirements.md

@@ -36,4 +36,4 @@ custom installer via the --kexec flag which connects to your VPN.
        [different kexec image](./howtos/INDEX.md#using-your-own-kexec-image)
        manually.
    - **Memory Requirements:**
-     - At least 1 GB of RAM (excluding swap space).
+     - At least 1.5 GB of RAM (excluding swap space).

tests/from-nixos-build-on-remote.nix

@@ -6,7 +6,7 @@
       installer = ./modules/installer.nix;
       installed = {
         services.openssh.enable = true;
-        virtualisation.memorySize = 1024;
+        virtualisation.memorySize = 1500;
 
         users.users.root.openssh.authorizedKeys.keyFiles = [ ./modules/ssh-keys/ssh.pub ];
       };

tests/from-nixos-generate-config.nix

@@ -9,7 +9,7 @@
     };
     installed = {
       services.openssh.enable = true;
-      virtualisation.memorySize = 1024;
+      virtualisation.memorySize = 1500;
 
       users.users.root.openssh.authorizedKeys.keyFiles = [ ./modules/ssh-keys/ssh.pub ];
     };

tests/from-nixos-separated-phases.nix

@@ -4,7 +4,7 @@
     installer = ./modules/installer.nix;
     installed = {
       services.openssh.enable = true;
-      virtualisation.memorySize = 1024;
+      virtualisation.memorySize = 1500;
 
       users.users.nixos = {
         isNormalUser = true;

tests/from-nixos-with-sudo.nix

@@ -4,7 +4,7 @@
     installer = ./modules/installer.nix;
     installed = {
       services.openssh.enable = true;
-      virtualisation.memorySize = 1024;
+      virtualisation.memorySize = 1500;
 
       users.users.nixos = {
         isNormalUser = true;

tests/from-nixos.nix

@@ -6,7 +6,7 @@
       installer = ./modules/installer.nix;
       installed = {
         services.openssh.enable = true;
-        virtualisation.memorySize = 1024;
+        virtualisation.memorySize = 1500;
 
         users.users.root.openssh.authorizedKeys.keyFiles = [ ./modules/ssh-keys/ssh.pub ];
       };