hack for testing in lxd

scripts/runtests.sh

@@ -20,7 +20,7 @@ for answers in examples/answers*.yaml; do
 done
 timeout --foreground 60 sh -c "LANG=C.UTF-8 python3 -m subiquity.cmd.tui --autoinstall examples/autoinstall.yaml \
                                --dry-run --machine-config examples/simple.json \
-                               --kernel-cmdline 'autoinstall console=$(tty)'"
+                               --kernel-cmdline 'autoinstall console=\"$(tty)\"'"
 python3 scripts/validate-yaml.py .subiquity/subiquity-curtin-install.conf \
         debconf_selections.subiquity='"eek"'
 grep 'finish: subiquity/InstallProgress/postinstall/install_package1: SUCCESS: installing package1' \

subiquity/core.py

@@ -184,7 +184,10 @@ class Subiquity(Application):
         with open(self.opts.autoinstall) as fp:
             self.autoinstall_config = yaml.safe_load(fp)
         primary_tty = self.get_primary_tty()
-        our_tty = os.ttyname(0)
+        try:
+            our_tty = os.ttyname(0)
+        except OSError:
+            our_tty = "not a tty"
         if not self.interactive() and our_tty != primary_tty:
             print(
                 _("the installer running on {} will perform the "