Master Partition ((full)) -

Boot any live Linux, run gdisk /dev/sda , then r → b to restore the backup GPT from the end of the disk. Yes, GPT keeps a spare in the trunk. MBR users? Pray you had a backup.

The Ultimate Guide to the "Master Partition": Software, Systems, and Solutions master partition

Works with almost all BIOS-based systems. Boot any live Linux, run gdisk /dev/sda ,

Some old Macs (pre-2011) need MBR to boot Windows but GPT for macOS. Solution? A hybrid MBR — a Frankenstein monster where the GPT and MBR disagree on partition boundaries. It works until it doesn’t. Use only if you enjoy data loss. Pray you had a backup

: Create exact copies of your partitions for backup or recover lost partitions that were accidentally deleted. Why It’s the "Master" Choice

Now go forth, partition master. Your disk awaits its new order.