Refer to the following message from Ubuntu's mailing list if you want to learn more. Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.Īll these warnings are safe to ignore, and your drive should be able to boot without any problems. Try making a fresh table, and using Parted's rescue feature to recover partitions. Is this a GPT partition table? Both the primary and backup GPT tables are corrupt. Or perhaps you deleted the GPT table, and are now using an msdos partition table. Perhaps it was corrupted - possibly by a program that doesn't understand GPT partition tables. The default iTunes backup location is set to the PC or Macs primary disk, and in macOS 10.
However, it does not have a valid fake msdos partition table, as it should. ext4: This is a default file system for linux OS (including Raspberry Pi).
However, to use it on Windows you can HFS explorer (read only). dev/xxx contains GPT signatures, indicating that it has a GPT table. If you format your external hard drive to HFS, you can use it on MAC and Linux (by removing journaling). 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.Ī consequence of this enhancement is that some programs, like parted get confused about the drive's format and partition table, printing warnings such as:
