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Man Pages


Manual Reference Pages  -  GPTE (8)

NAME

gpte - GPT partition editor

CONTENTS

Synopsis
Description
Authors
Standards
Bugs

SYNOPSIS

gpte [-primary] [-backup] [-blocksize block_size] [-backuppos backup_position] command device

DESCRIPTION

The gpte is EFI GPT partition editor.

gpte recognizes the following commands:
check Checks the tables for validity, difference and device for presence of protective MBR.
print Print header data and partition list.
erase Erases existing tables. (In real, only signatures are erased.)
create_empty
  Create empty tables.
edit Run interactive editing of tables.
fix Fix consistency of tables. If one table (either primary or backup) is invalid, it is cloned from valid one. If tables differ, primary table is copied to backup one.
newids Assign new GUIDs to header and all partitions. This is needed after byte-to-byte disk cloning.
write_pmbr
  Write PMBR to device (with one protective partition).

gpte recognizes the following options:
-primary
  Work only with primary table. (Not recommended for normal use)
-backup Work only with backup table. (Not recommended for normal use)
-blocksize block_size
  Define block size to use instead of one recognized from device. If gpte isn’t given any size and can’t get one from the device, fallback value is 512.
-backuppos backup_position
  Specify linear block address for backup GPT header. (For use when size being saw now is not the same as during work, e.g. for parts of RAID volume.) Default is device size in blocks minus 1.

AUTHORS

Valentin Nechayev <netch@netch.kiev.ua>

STANDARDS

Intel EFI specification (http://www.intel.com/technology/efi/).

Intel EFI specification puts some restrictions to possible actions. E.g. one cannot enter editing both tables before primary and backup tables forcefully set identical.

BUGS

This tool is very hackerish.

Some checks are omitted now (e.g. not to overlap with other partitions).

This version does not know anything for partition names.

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