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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 trans‐
	      ferring 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 complex‐
	      ity of booting a personal 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 position 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 10 Installation Guide: Basic Installations

       System Administration Guide: Basic Administration

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

SunOS 5.10			  21 Apr 2005			       grub(5)

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