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Full Discussion: Server won't boot up ... no GRUB menu
Operating Systems Linux Red Hat Server won't boot up ... no GRUB menu Post 302359961 by sdotsen on Wednesday 7th of October 2009 08:48:01 PM
Old 10-07-2009
Server won't boot up ... no GRUB menu
I dont know what the heck happen but one of our DBAs was working on a cluster for oracle. Rebooted the box and viola, the OS won't load. After the POST message, I get a blinking cursor on the upper left hand corner. Doesn't even say "GRUB" or anything, it just blinks.

I tried going into rescue mode and re-installing GRUB but that didnt help. We even broke down the array just to check and that didn't help. I'm out of ideas. The data appears to be intact since I was able to chroot into the image when I boot off the CD. Any ideas?

RHEL AS 4.7
 

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LEARN ABOUT SUNOS

grub

grub(5) 																   grub(5)

NAME

       grub - GRand Unified Bootloader software on Solaris

       The  current  release  of the Solaris operating system is shipped with the GRUB (GRand Unified Bootloader) software.  GRUB is developed and
       supported 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  transfer-
	      ring  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 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  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.

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

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

								    21 Apr 2005 							   grub(5)
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