diff options
Diffstat (limited to 'nixos/modules/testing/test-instrumentation.nix')
| -rw-r--r-- | nixos/modules/testing/test-instrumentation.nix | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/nixos/modules/testing/test-instrumentation.nix b/nixos/modules/testing/test-instrumentation.nix index 028099c6464..9c4bbecf480 100644 --- a/nixos/modules/testing/test-instrumentation.nix +++ b/nixos/modules/testing/test-instrumentation.nix @@ -36,8 +36,16 @@ in while ! exec 2> /dev/${qemu-common.qemuSerialDevice}; do sleep 0.1; done echo "connecting to host..." >&2 stty -F /dev/hvc0 raw -echo # prevent nl -> cr/nl conversion - echo - PS1= exec /bin/sh + # The following line is essential since it signals to + # the test driver that the shell is ready. + # See: the connect method in the Machine class. + echo "Spawning backdoor root shell..." + # Passing the terminal device makes bash run non-interactively. + # Otherwise we get errors on the terminal because bash tries to + # setup things like job control. + # Note: calling bash explicitely here instead of sh makes sure that + # we can also run non-NixOS guests during tests. + PS1= exec /usr/bin/env bash --norc /dev/hvc0 ''; serviceConfig.KillSignal = "SIGHUP"; }; |