Fixed the linux updater

modules/core/app-updater/index.ts

@@ -655,6 +655,7 @@ export async function availableClientUpdate() : Promise<UpdateVersion | undefine
 }
 
 /**
+ * The `callbackLog` might get called after this method exists and as soon you call the `callbackExecute`.
  * @returns The callback to execute the update
  */
 export async function prepareUpdateExecute(targetVersion: UpdateVersion, callbackStats: UpdateStatsCallback, callbackLog: UpdateLogCallback) : Promise<{ callbackExecute: () => void, callbackAbort: () => void }> {
@@ -715,14 +716,19 @@ export async function prepareUpdateExecute(targetVersion: UpdateVersion, callbac
         //We have to unpack it later
         executeCallback = () => {
             if(inaccessiblePaths.length > 0) {
-                dialog.showMessageBoxSync({
+                const updateCommand = `sudo "${updateInstallerExecutable}" "${installLogFile}" "${installConfigFile}"`;
-                    buttons: [ "Ok" ],
+                try {
-                    title: "Update available",
+                    electron.clipboard.writeText(updateCommand);
-                    message:
+                } catch (error) {
-                        "We don't have permissions to write to all files.\n" +
+                    console.error("Failed to copy command to clipboard: %o", error);
-                        "Please execute the following command to execute the update:\n" +
+                }
-                        `sudo "${updateInstallerExecutable}" "${installLogFile}" "${installConfigFile}"`
+
-                });
+                callbackLog("error",
+                    "We don't have permissions to write to all files.\n" +
+                    "Please close this client and execute the following command:\n" +
+                    `sudo "${updateInstallerExecutable}" "${installLogFile}" "${installConfigFile}"` + "\n\n" +
+                    "We've already copied that command to your clipboard."
+                );
                 return;
             }