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grub(5)		      Standards, Environments, and Macros	       grub(5)

NAME
       grub - GRand Unified Bootloader software on Solaris

DESCRIPTION
       The current release of the Solaris operating system is shipped with the
       GRUB (GRand Unified Bootloader) software.  GRUB is developed  and  sup‐
       ported by the Free Software Foundation.

       The  overview for the GRUB Manual, accessible at www.gnu.org, describes
       GRUB:

       Briefly, a boot loader is the first software program that runs  when  a
       computer starts. It is responsible for loading and transferring control
       to an operating system kernel software (such as Linux or GNU Mach). The
       kernel,	in  turn,  initializes	the  rest of the operating system (for
       example, a GNU [Ed. note: or Solaris] system).

       GNU GRUB is a very powerful boot loader that can load a wide variety of
       free,  as  well	as  proprietary, operating systems, by means of chain-
       loading. GRUB is designed to address the complexity of booting  a  per‐
       sonal  computer;	 both the program and this manual are tightly bound to
       that computer platform, although porting	 to  other  platforms  may  be
       addressed  in the future. [Ed. note: Sun has ported GRUB to the Solaris
       operating system.]

       One of the important features in GRUB is flexibility; GRUB  understands
       filesystems and kernel executable formats, so you can load an arbitrary
       operating system the way you like, without recording the physical posi‐
       tion  of	 your kernel on the disk. Thus you can load the kernel just by
       specifying its file name and the drive and partition where  the	kernel
       resides.

       Among  Solaris  machines,  GRUB is supported on x86 platforms. The GRUB
       software that is shipped with Solaris adds two utilities not present in
       the open-source distribution:

       bootadm(1M)	  Enables  you	to  manage  the	 boot archive and make
			  changes to the GRUB menu.

       installgrub(1M)	  Loads the boot program from disk.

       Both of these utilities are described in Solaris man pages.

       Beyond these two	 Solaris-specific  utilities,  the  GRUB  software  is
       described  in the GRUB manual, a PDF version of which is available from
       the Sun web site.  Available in the same location is the grub(8)	 open-
       source man page.	 This man page describes the GRUB shell.

SEE ALSO
       boot(1M), bootadm(1M), installgrub(1M)

       Solaris Express Installation Guide: Basic Installations

       System Administration Guide: Basic Administration

       http://www.gnu.org/software/grub

SunOS 5.11			  21 Apr 2005			       grub(5)

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