[pve-devel] [PATCH pve_installer v2] tui: don't abort install if min ram requirement is not met

[Noel Ullreich]

If the minimum requirements are not met, the TUI installer will create a
popup notifying you that the install might not work and then exits the
installer.
While the GUI also creates such a popup, it will not exit the installer.
This patch adapts the behavior of the GUI: the TUI creates a popup
warning you that min spec is not met but doesn't abort the install.

Signed-off-by: Noel Ullreich <n.ullreich at proxmox.com>
---
changes from v1:
* moved the min ram check into `installer_setup_late`
* fixed spelling in the subject line

 proxmox-tui-installer/src/main.rs   | 14 ++++++++++++--
 proxmox-tui-installer/src/system.rs | 14 +-------------
 2 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/proxmox-tui-installer/src/main.rs b/proxmox-tui-installer/src/main.rs
index 64f21fa..99a4a11 100644
--- a/proxmox-tui-installer/src/main.rs
+++ b/proxmox-tui-installer/src/main.rs
@@ -209,6 +209,8 @@ fn main() {
         in_test_mode,
     });
 
+    installer_setup_late(&mut siv);
+
     switch_to_next_screen(&mut siv, InstallerStep::Licence, &license_dialog);
     siv.run();
 }
@@ -243,8 +245,6 @@ fn installer_setup(in_test_mode: bool) -> Result<(LocaleInfo, RuntimeInfo), Stri
             .map_err(|err| format!("Failed to retrieve runtime environment info: {err}"))?
     };
 
-    system::has_min_requirements(&runtime_info)?;
-
     runtime_info.disks.sort();
     if runtime_info.disks.is_empty() {
         Err("The installer could not find any supported hard disks.".to_owned())
@@ -256,6 +256,7 @@ fn installer_setup(in_test_mode: bool) -> Result<(LocaleInfo, RuntimeInfo), Stri
 /// Anything that can be done late in the setup and will not result in fatal errors.
 fn installer_setup_late(siv: &mut Cursive) {
     let state = siv.user_data::<InstallerState>().unwrap();
+    let mem = state.runtime_info.total_memory;
 
     if !state.in_test_mode {
         let kmap_id = &state.options.timezone.kb_layout;
@@ -266,6 +267,15 @@ fn installer_setup_late(siv: &mut Cursive) {
         }
     }
 
+    if mem < 1024 {
+            display_setup_warning(
+                siv,
+                concat!(
+                "Less than 1 GiB of usable memory detected, installation will probably fail.\n\n",
+                "See 'System Requirements' in the documentation."),
+            );
+        }
+
     if setup_info().config.product == setup::ProxmoxProduct::PVE {
         let cpu_hvm = procfs::read_cpuinfo().map(|info| info.hvm).unwrap_or(false);
         if !cpu_hvm {
diff --git a/proxmox-tui-installer/src/system.rs b/proxmox-tui-installer/src/system.rs
index baceab9..7378dba 100644
--- a/proxmox-tui-installer/src/system.rs
+++ b/proxmox-tui-installer/src/system.rs
@@ -1,18 +1,6 @@
 use std::{fs::OpenOptions, io::Write, process::Command};
 
-use crate::setup::{KeyboardMapping, RuntimeInfo};
-
-pub fn has_min_requirements(info: &RuntimeInfo) -> Result<(), String> {
-    if info.total_memory < 1024 {
-        return Err(concat!(
-            "Less than 1 GiB of usable memory detected, installation will probably fail.\n\n",
-            "See 'System Requirements' in the documentation."
-        )
-        .to_owned());
-    }
-
-    Ok(())
-}
+use crate::setup::{KeyboardMapping};
 
 pub fn set_keyboard_layout(kmap: &KeyboardMapping) -> Result<(), String> {
     Command::new("setxkbmap")
-- 
2.39.2