efi man page on HP-UX

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efi(4)									efi(4)

       efi - Extensible Firmware Interface description

       The  EFI	 (Extensible Firmware Interface) is an interface between HP-UX
       and the Itanium-based platform firmware.	 The file system supported  by
       the Extensible Firmware Interface is based on the FAT file system.  EFI
       encompasses the use of FAT-32 for a system  partition,  and  FAT-12  or
       FAT-16  for  removable  media.	The  system partition is required on a
       bootable disk for the Itanium-based platform.

       For a hard disk, the system partition is a contiguous grouping of  sec‐
       tors on the disk, where the starting sector and size are defined by the
       EFI partition table, which resides on the second logical block  of  the
       hard disk, and/or by the Master Boot Record (MBR), which resides on the
       first sector of the hard disk.  For  a  floppy  disk,  a	 partition  is
       defined to be the entire disk.

       The  System  Partition  can  contain  directories,  data files, and EFI
       Images.	The EFI system firmware may search the directory  of  the  EFI
       system  partition,  EFI volume, to find possible EFI Images that can be
       loaded.	The HP-UX bootloader is one example of an EFI Image.

       HP-UX contains a set of EFI utilities:

       efi_fsinit(1M) Initialize an EFI volume; that is, create a  header  and
		      an empty directory.

       efi_cp(1M)     Copy files to and from an EFI volume.

       efi_mkdir(1M)  Create directories in an EFI volume.

       efi_ls(1M)     List the contents of an EFI volume.

       efi_rm(1M)     Remove files from an EFI volume.

       efi_rmdir(1M)  Remove directories from an EFI volume.

       The  EFI	 utilities  are the only utilities in HP-UX where the internal
       structure of an EFI volume is known.  To the rest of HP-UX, an EFI sys‐
       tem  partition  is simply a partition containing unspecified data.  The
       EFI volume cannot be mounted to HP-UX currently.

       An EFI volume can be created on any HP-UX  file	(either	 regular  disk
       file  or device special file) that supports random access via lseek(2).
       Within an EFI volume, individual files and directories  are  identified
       by  1-  to  255-character  file	names.	 File names can consist of any
       alphanumeric characters (A through Z, a through z, and 0 through 9) and
       the  certain set of special characters (. $ % ' - _ @ ~ ` ! ( ) + , : ;
       = # & ? ^ [ ] { } space).  The first character of an EFI file name  can
       be  any valid EFI characters, except the space.	When comparing two EFI
       names, differences in the case of alphabetic characters are not signif‐
       icant.  For example, the following file names are considered the same:

       If one exists, the user will not be able to create the other.

       The  directory  may  be	made  up  of multiple components, separated by
       slashes(/).  The last directory component must be followed by  a	 slash
       to  separate  it	 from  the file name.  There are two special directory
       components, (.) and (..).  They represent the current directory and the
       parent directory as in other file systems.

       efi_cp(1M),   efi_fsinit(1M),  efi_ls(1M),  efi_mkdir(1M),  efi_rm(1M),

		    Itanium(R)-Based Processor Family Only		efi(4)

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