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Full Discussion: EFI on BSDs problem
Special Forums Hardware Boot Loaders EFI on BSDs problem Post 302462490 by fpmurphy on Thursday 14th of October 2010 10:57:35 AM
Old 10-14-2010
I have not used any of the BSD distributions for a while but it is my understanding that FreeBSD has support for GPT since 7.1. Converting to an EFI based machine would simply require replacing the FreeBSD boot partition with an EFI system partition (ESP) and EFI boot code for FreeBSD x86 would need to be added.

IA64 BSD EFI booting is supported but from what I can see only experimental support exists for EFI booting X86 or X86_64. Some people have managed to do it using rEFIt on Intel Macs.

A better approach might be to use TianoCore DUET to boot an EFI-based GRUB loader which in turn can be configured to boot BSD. Here is a Using UEFI DUET to boot Fedora 12 which shows you how to UEFI boot Fedora 12 using DUET. Just add the necessary GRUB stanza for your favorite BSD distribution and it should boot.
 

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efi_ls(1M)																efi_ls(1M)

NAME
efi_ls - list EFI file information or contents of an EFI directory SYNOPSIS
devicefile] [path] DESCRIPTION
lists file information or contents of an EFI directory. The EFI file system is based on the FAT file system and used by the Itanium-based system BIOS to locate an HP-UX bootloader. See efi(4). lists filenames, last modified dates, and file sizes. devicefile should be a device file for an EFI volume. Given a path, determines whether the path is a file or a directory. For a file, lists the file by itself. For a directory, lists the contents of the directory. If no path is given, lists the root directory for EFI volume. A path should be relative to the root of the EFI volume specified by device- file, not to an HP-UX file system. Options recognizes the following option: devicefile is the device special file of the EFI file system to be listed. Without the option, uses the device file specified in the environment variable if it is defined. The option overrides the environment variable. RETURN VALUE
returns exit code 0 on success. Otherwise it prints a diagnostic message and returns nonzero. 0 Successful completion. >0 Error condition occurred. EXAMPLES
List a root directory of device file which contains an EFI file system: List a root directory of the persistent device file (see intro(7)), which contains an EFI file system: List the contents of directory of device file which contains an EFI file system: List information about the file of device file which contains an EFI file system: AUTHOR
was developed by HP. SEE ALSO
efi_cp(1M), efi_fsinit(1M), efi_mkdir(1M), efi_rmdir(1M), efi_rm(1M), efi(4), intro(7). Itanium(R)-based Systems Only efi_ls(1M)
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