Menu) and saving your changes back to the disk's partition table (using You can then recover from very serious corruption by loading this fileīack (using the l option on the recovery & transformation You should back up your partition table and keep this file on anotherĬomputer or on a removable medium (USB flash drive, optical disc, etc.). These items are stored in a binary file in this order. Protective MBR, the main header, the backup header, and one copy of the Using any of these programs, the data saved is the Sda-backup.gpt or use the Backup option inĬgdisk. You can also use sgdiskįor this task, as in sgdisk -b sda-backup.gpt /dev/sda On gdisk's main menu, you'll find the b option, which.An Ounce of Preventionīefore you get into trouble, it's worth taking preventive measures:īack up your partition tables! You can do this in either of two Neither of these features makes GPTĬompletely immune to errors, though they just help utilities to detectĪnd recover from those problems.
GPT includes stored CRC values to help utilities spot problems and MBR partition table as noted in What's a GPT?, GPT was designed with improved robustness in mind compared to the older Note: This page is part of the documentation for my GPT fdisk program. If you find GPT fdisk or this Web page useful, please consider making a small donation to help keep this site up and running. This Web page, and the associated software, is provided free of charge and with no annoying outside ads however, I did take time to prepare it, and Web hosting does cost money. Repairing GPT Disks Repairing GPT Disks by Rod Smith, Web page update:, referencing GPT fdisk version 1.0.9
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