How to use _create_single_partition method in autotest

Best Python code snippet using autotest_python Github


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...681 raise error.AutotestError(e_msg)682 logging.debug('Creating virtual partition')683 self.img = self._create_disk_img(file_img, file_size)684 self.loop = self._attach_img_loop(self.img)685 self._create_single_partition(self.loop)686 self.device = self._create_entries_partition(self.loop)687 logging.debug('Virtual partition successfuly created')688 logging.debug('Image disk: %s', self.img)689 logging.debug('Loopback device: %s', self.loop)690 logging.debug('Device path: %s', self.device)691 def destroy(self):692 """693 Removes the virtual partition from /dev/mapper, detaches the image file694 from the loopback device and removes the image file.695 """696 logging.debug('Removing virtual partition - device %s', self.device)697 self._remove_entries_partition()698 self._detach_img_loop()699 self._remove_disk_img()700 def _create_disk_img(self, img_path, size):701 """702 Creates a disk image using dd.703 @param img_path: Path to the desired image file.704 @param size: Size of the desired image in Bytes.705 @returns: Path of the image created.706 """707 logging.debug('Creating disk image %s, size = %d Bytes', img_path, size)708 try:709 cmd = 'dd if=/dev/zero of=%s bs=1024 count=%d' % (img_path, size)710 except error.CmdError, e:712 e_msg = 'Error creating disk image %s: %s' % (img_path, e)713 raise error.AutotestError(e_msg)714 return img_path715 def _attach_img_loop(self, img_path):716 """717 Attaches a file image to a loopback device using losetup.718 @param img_path: Path of the image file that will be attached to a719 loopback device720 @returns: Path of the loopback device associated.721 """722 logging.debug('Attaching image %s to a loop device', img_path)723 try:724 cmd = 'losetup -f'725 loop_path = utils.system_output(cmd)726 cmd = 'losetup -f %s' % img_path727 except error.CmdError, e:729 e_msg = ('Error attaching image %s to a loop device: %s' %730 (img_path, e))731 raise error.AutotestError(e_msg)732 return loop_path733 def _create_single_partition(self, loop_path):734 """735 Creates a single partition encompassing the whole 'disk' using cfdisk.736 @param loop_path: Path to the loopback device.737 """738 logging.debug('Creating single partition on %s', loop_path)739 try:740 single_part_cmd = '0,,c\n'741 sfdisk_file_path = '/tmp/create_partition.sfdisk'742 sfdisk_cmd_file = open(sfdisk_file_path, 'w')743 sfdisk_cmd_file.write(single_part_cmd)744 sfdisk_cmd_file.close()745'sfdisk %s < %s' % (loop_path, sfdisk_file_path))746 except error.CmdError, e:747 e_msg = 'Error partitioning device %s: %s' % (loop_path, e)...

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