A couple quick fixes:

1) Ensure that lumina-open is used to open the default terminal app (additional binary verification/checking)
2) Add some additional verification of the binary to run within lumina-open, and warn the user about a missing binary as needed.

2 files changed, 8 insertions, 3 deletions

diff --git a/src-qt5/core/lumina-desktop/LDesktop.cpp b/src-qt5/core/lumina-desktop/LDesktop.cpp
index 0dd28f11..cf1fe25f 100644
--- a/src-qt5/core/lumina-desktop/LDesktop.cpp
+++ b/src-qt5/core/lumina-desktop/LDesktop.cpp
@@ -102,9 +102,8 @@ void LDesktop::SystemLogout(){
 void LDesktop::SystemTerminal(){
   LSession::handle()->sessionSettings()->sync(); //make sure it is up to date
   QString term = LXDG::findDefaultAppForMime("application/terminal"); //LSession::handle()->sessionSettings()->value("default-terminal","xterm").toString();
-  if(term.endsWith(".desktop")){ term = "lumina-open \""+term+"\""; }
-  else if(term.isEmpty() || !LUtils::isValidBinary(term)){ term = "xterm"; }
-  LSession::LaunchApplication(term);
+  if(term.isEmpty() || !LUtils::isValidBinary(term)){ term = "xterm"; }
+  LSession::LaunchApplication("lumina-open \""+term+"\"");
 }
 
 void LDesktop::SystemFileManager(){
diff --git a/src-qt5/core/lumina-open/main.cpp b/src-qt5/core/lumina-open/main.cpp
index 62a14f4c..b5f0d97f 100644
--- a/src-qt5/core/lumina-open/main.cpp
+++ b/src-qt5/core/lumina-open/main.cpp
@@ -347,6 +347,12 @@ int main(int argc, char **argv){
   //qDebug() << "Run CMD:" << cmd << args;
   //Now run the command (move to execvp() later?)
   if(cmd.isEmpty()){ return 0; } //no command to run (handled internally)
+  QString bin = cmd.section(" ",0,0);
+  if( !LUtils::isValidBinary(bin) ){
+    //invalid binary for some reason - open a dialog to warn the user instead
+    QMessageBox::warning(0, QObject::tr("Binary Missing"), QString(QObject::tr("Could not find \"%1\". Please ensure it is installed first.")).arg(bin)+"\n\n"+cmd);
+    return 1;
+  }
   qDebug() << "[lumina-open] Running Cmd:" << cmd;
   int retcode = 0;
   //Provide an override file for never watching running processes.