isohybrid(1)

isohybrid1

Post-process an iso 9660 image for booting as a hard disk.

Usage

isohybrid [OPTIONS] <boot.iso>

Overview

The isohybrid utility modifies an ISO 9660 image generated with mkisofs, genisoimage, or compatible utilities, to be bootable as a CD-ROM or as a hard disk.

Options

-h <X>

Number of geometry heads (default 64)

-s <X>

Number of geometry sectors (default 32)

-e <X>, --entry <X>

Specify parititon entry number (1-4)

-o <X>, --offset <X>

Specify partition offset (default 0)

-t <X>, --type <X>

Specify partition type (default 0x17)

-i <X>, --id <X>

Specify MBR ID (default random)

-u, --uefi

Build EFI bootable image

-m, --mac

Add Apple File Protocol partition table support

--forcehd0

Assume we are laoded as disk ID 0

--ctrlhd0

Assume disk ID 0 if the Ctrl key is pressed

--partok

Allow booting from within a partition

-?, --help

Display help

-v, --verbose

Display verbose output

-V, --version

Display version information

Releases

9 releases since Debian 6.0 (Squeeze); the text changed 2 times.

  1. 6.0
  2. 7
  3. 8–Arch

--mac since Debian 8 (Jessie); --uefi since Debian 8 (Jessie); -m since Debian 8 (Jessie); -u since Debian 8 (Jessie).

From syslinux 6.04.pre3.r3.g05ac953c-5 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.