Try making a fresh table, and using Parted's rescue feature to recover partitions.Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.All these warnings are safe to ignore, and your drive should be able to boot without any problems.Refer to the following message from Ubuntu's mailing list if you want to learn more. Is this a GPT partition table? Both the primary and backup GPT tables are corrupt. An upgrade can take place on your existing device, though Microsoft recommends using Windows 10 on a new PC to take advantage of the latest features and security improvements. Or perhaps you deleted the GPT table, and are now using an msdos partition table. An upgrade moves your PC from a previous version of Windowssuch as Windows 7 or Windows 8.1to Windows 10. The Windows 10 operating system was originally released in July 2015, succeeding. Perhaps it was corrupted - possibly by a program that doesn't understand GPT partition tables. You can download Windows 10 32/64-bit ISO file to install the full version OS. However, it does not have a valid fake msdos partition table, as it should. Ubuntu images (and potentially some other related GNU/Linux distributions) have a peculiar format that allows the image to boot without any further modification from both CDs and USB drives.A consequence of this enhancement is that some programs, like parted get confused about the drive's format and partition table, printing warnings such as:/dev/xxx contains GPT signatures, indicating that it has a GPT table.

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