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Operating Systems Linux Debian Grub 1.99 alters BIOS (confirmed after formatting hard disk) Post 302851999 by Linuxmun on Tuesday 10th of September 2013 08:58:56 AM
Old 09-10-2013
Quote:
Originally Posted by gacanepa
Hmmm.
I don't think a standard installation of Debian (or whatever distro, actually) can mess up your BIOS like that.

I believe that what you're trying to say here is that when you first boot with a Debian DVD, it allows you to "try" the operating system directly from the DVD before actually installing it in your hard drive.
Here's what I would do. When your computers starts, enter your BIOS and tell it to boot from the DVD drive or a USB stick, whatever media you have an operating system ready to boot. Then use the accompanying tools to reformat your hard drive, and install the operating system itself if you want to do it.
If you're a Windows user, I'd suggest you to take a look at the (Linuxmun: can't post link yet) tool, which allows you to format an USB drive, install an image of some Linux distribution and make it bootable so you can use it as a LiveUSB to troubleshoot a computer or to install the operating system in your hard drive. Hope it helps.
The BIOS screen "Press <F2> to enter Setup" appears but when I press F2, nothing happens either and I ended up seeing "Operating System not found".

My Win7 or CentOS DVD doesn't load at all after seeing the BIOS screen. I tested the 2 discs on another computer and they can load after setting DVD-ROM drive as first priority.
 

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GRUB-INSTALL(8) 							FSF							   GRUB-INSTALL(8)

NAME
grub-install - install GRUB on your drive SYNOPSIS
grub-install [OPTION] install_device DESCRIPTION
Install GRUB on your drive. -h, --help print this message and exit -v, --version print the version information and exit --root-directory=DIR install GRUB images under the directory DIR instead of the root directory --grub-shell=FILE use FILE as the grub shell --no-floppy do not probe any floppy drive --force-lba force GRUB to use LBA mode even for a buggy BIOS --recheck probe a device map even if it already exists INSTALL_DEVICE can be a GRUB device name or a system device filename. grub-install copies GRUB images into the DIR/boot directory specfied by --root-directory, and uses the grub shell to install grub into the boot sector. The grub source distribution carries this script to ease the installation of grub as a boot loader. In Suse Linux however, grub installa- tion is much better handled by Yast; use of this script is generally discouraged and therefore unsupported. Consequently, the script has been renamed to grub-install.unsupported. In order to (re-)install grub for the currently running system, simply use Yast. For an installation aiming at a differing system, the crafting of an appropriate device.map and grub shell script is strongly advised, e.g. "grub --batch --device-map=target-device.map < tar- get-grub.conf" SEE ALSO
The full documentation for grub-install is maintained as a Texinfo manual. If the info and grub-install programs are properly installed at your site, the command info grub-install should give you access to the complete manual. grub-install (GNU GRUB 0.97) May 2005 GRUB-INSTALL(8)
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