How to use _create_disk_img method in autotest

Best Python code snippet using autotest_python Github


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...665 e_msg = 'Unable to create virtual partition: %s' % e666 raise error.AutotestError(e_msg)667 logging.debug('Creating virtual partition')668 self.size = file_size669 self.img = self._create_disk_img(file_img)670 self.loop = self._attach_img_loop()671 self.device = self.loop672 logging.debug('Virtual partition successfuly created')673 logging.debug('Image disk: %s', self.img)674 logging.debug('Loopback device: %s', self.loop)675 logging.debug('Device path: %s', self.device)676 def destroy(self):677 """678 Removes the virtual partition from /dev/mapper, detaches the image file679 from the loopback device and removes the image file.680 """681 logging.debug('Removing virtual partition - device %s', self.device)682 self._detach_img_loop()683 self._remove_disk_img()684 def _create_disk_img(self, img_path):685 """686 Creates a disk image using dd.687 @param img_path: Path to the desired image file.688 @param size: Size of the desired image in MB.689 @returns: Path of the image created.690 """691 logging.debug('Creating disk image %s, size = %d MB',692 img_path, self.size)693 try:694 cmd = 'truncate %s --size %dM' % (img_path, self.size)695 except error.CmdError, e:697 e_msg = 'Error creating disk image %s: %s' % (img_path, e)698 raise error.AutotestError(e_msg)...

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