change the way an error is presented a bit

subiquity/controllers/installprogress.py

@@ -90,19 +90,11 @@ class InstallProgressController(BaseController):
 
     def curtin_error(self):
         log.debug('curtin_error')
-        # just the last ten lines
-        errmsg = str(self.curtin_tail_install_log()[-800:])
-        # Holy Unescaping Batman!
-        errmsg = errmsg.replace("\\\'", "")
-        errmsg = errmsg.replace("\'\'", "")
-        errmsg = errmsg.replace("\\n\'\n", "\n")
-        errmsg = errmsg.replace('\\n', '\n')
-        log.error(errmsg)
         title = ('An error occurred during installation')
         self.ui.set_header(title, 'Please report this error in Launchpad')
-        self.progress_view.set_error(errmsg)
+        self.progress_view.set_status("An error has occurred")
         self.ui.set_footer("An error has occurred.", 100)
-        self.progress_view.show_finished_button()
+        self.progress_view.show_complete()
         log.debug('curtin_error: refreshing final error screen')
         self.signal.emit_signal('refresh')
 

subiquity/ui/views/installprogress.py

@@ -33,11 +33,9 @@ class ProgressView(BaseView):
     def __init__(self, model, controller):
         self.model = model
         self.controller = controller
-        self.error = Text("")
         self.listwalker = SimpleListWalker([])
         self.linebox = LineBox(ListBox(self.listwalker))
         body = [
-            ('pack', Padding.center_79(self.error)),
             ('pack', Text("")),
             ('weight', 1, Padding.center_79(self.linebox)),
             ('pack', Text("")),
@@ -46,9 +44,8 @@ class ProgressView(BaseView):
         super().__init__(self.pile)
 
     def add_log_tail(self, text):
-        if text.endswith('\n'):
-            text = text[:-1]
-        self.listwalker.append(Text(text))
+        for line in text.splitlines():
+            self.listwalker.append(Text(line))
         self.listwalker.set_focus(len(self.listwalker) - 1)
 
     def clear_log_tail(self):
@@ -57,9 +54,6 @@ class ProgressView(BaseView):
     def set_status(self, text):
         self.linebox.set_title(text)
 
-    def set_error(self, text):
-        self.error.set_text(text)
-
     def show_complete(self):
         w = Padding.fixed_20(
             Color.button(confirm_btn(label="Reboot now",