tests/acceptance/linux_initrd.py

   1 # Linux initrd acceptance test.
   2 #
   3 # Copyright (c) 2018 Red Hat, Inc.
   4 #
   5 # Author:
   6 #  Wainer dos Santos Moschetta <wainersm@redhat.com>
   7 #
   8 # This work is licensed under the terms of the GNU GPL, version 2 or
   9 # later.  See the COPYING file in the top-level directory.
  10
  11 import tempfile
  12 from avocado.utils.process import run
  13
  14 from avocado_qemu import Test
  15
  16
  17 class LinuxInitrd(Test):
  18     """
  19     Checks QEMU evaluates correctly the initrd file passed as -initrd option.
  20
  21     :avocado: tags=x86_64
  22     """
  23
  24     timeout = 60
  25
  26     def test_with_2gib_file_should_exit_error_msg_with_linux_v3_6(self):
  27         """
  28         Pretends to boot QEMU with an initrd file with size of 2GiB
  29         and expect it exits with error message.
  30         Fedora-18 shipped with linux-3.6 which have not supported xloadflags
  31         cannot support more than 2GiB initrd.
  32         """
  33         kernel_url = ('https://archives.fedoraproject.org/pub/archive/fedora/li'
  34                       'nux/releases/18/Fedora/x86_64/os/images/pxeboot/vmlinuz')
  35         kernel_hash = '41464f68efe42b9991250bed86c7081d2ccdbb21'
  36         kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
  37         max_size = 2 * (1024 ** 3) - 1
  38
  39         with tempfile.NamedTemporaryFile() as initrd:
  40             initrd.seek(max_size)
  41             initrd.write(b'\0')
  42             initrd.flush()
  43             cmd = "%s -kernel %s -initrd %s -m 4096" % (
  44                   self.qemu_bin, kernel_path, initrd.name)
  45             res = run(cmd, ignore_status=True)
  46             self.assertEqual(res.exit_status, 1)
  47             expected_msg = r'.*initrd is too large.*max: \d+, need %s.*' % (
  48                 max_size + 1)
  49             self.assertRegex(res.stderr_text, expected_msg)