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. Rufus is a tool for Windows that lets you create boot devices from external storage units, like USB flash drives and SD cards. It is easy to use and supports a myriad of platforms.

It has the ability to load and install various Linux distros on Mac. Is this a GPT partition table? Both the primary and backup GPT tables are corrupt. Rufus for Mac Alternative 2: UNetbootin Unetbootin (Universal Netboot Installer), is another cross-platform utility toolkit that makes a great alternative to Rufus on Mac. Sometimes, Rufus fails to function and is unable to build a bootable USB.

However, if you want to generate a bootable USB for Linux or macOS, Rufus is not available on these operating systems. Or perhaps you deleted the GPT table, and are now using an msdos partition table. Rufus is one of the most popular Windows utilities for making bootable USB sticks. Perhaps it was corrupted - possibly by a program that doesn't understand GPT partition tables. 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. Rufus (Windows) When it comes to creating a bootable USB drive in Windows, Rufus is undeniably the best one out there.

Rufus tool for mac