![]() Open-source software is usually maintained by the technical experts in the community and sometimes users themselves can participate in the maintenance. But the level of developers is often uneven, so the quality of closed-source software is often uneven. The quality of closed-source software is usually closely related to the level of developers in software companies. There will be a steady stream of contributors to maintain and update, and they can access the source code, which can be modified according to their own wishes. Active open source software is usually active. If you choose open source software, you can minimize the risk. Imaging that if the software companies suddenly evaporate overnight, the system you are running will not be maintainable, and you may face the situation of replacing the system at any time. 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.The source codes of software are always private. 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. 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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