Install Grub2 From Windows Iso
Install Grub2 From Windows 8.1
Install Grub2 On Windows Partition

Boot 2 os in hdd, lost ubuntu after install windows 7.

Installing Grub2 on USB from Windows. Note: Grub2 UEFI will only install on a Fat/Fat32 formatted partition. Though you can chainload and run files from other NTFS, exFAT partitions. Download the grub-2.04-for-windows.zip and extract (unzip) its contents to your Windows desktop. As seen below, you should end up with a grub-2.04-for-windows.
Next install DOS: SYS C: 2.6 Installing Windows 98. Insert the GRUB disk. When you see the menu insert the Windows 98 Emergency disk. Select partition 3 (floppy) from the menu.Hit enter. This will boot the floppy disk and hide partition 1 and 2. Run FDISK and check that the C: drive is partition 3. Next install Windows 98: SYS C: 2.7 The final.

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2. Installation procedure

2.1 Preparing boot floppies

You will need 3 floppy disks. Make the first floppy a DOSbootable disk. Copy fdisk.exe and sys.exe onto this floppy disk.

Use your secondfloppy disk to make a Windows 98 emergency disk. You will use the third floppy for GRUB shortly.

2.2 Installing linux

Install your favorite distribution of linux. You will need to usefdisk to partition your hard disk. Calculate ahead of time how muchdisk space each of your operating systems will take.

Here is how I partitioned my hard disk:

My first partition is for booting Windows 2000. 10MG should be plentyto do that. This partition will only contains the file necessary toboot NT such as boot.ini, ntldr, ntdetect.com, etc... NT will residein partition 6 in my example. This partition is Hidden FAT16.

The second partition is for DOS. I deemed 100M sufficient. This isFAT16 too

The third partition is for Win9x. I gave it 5G and made it FAT32 forperformance.

Next create the extended partition for the remaining of your harddisk. This shows up as partition 4 on fdisk.

Create a 2GB partition. This partitions is used to share databetween all operating systems. Make sure that all the sum of all abovepartitions are less than 8GB. This is a DOS limitation.

Next create your Windows 2000 partition. I gave it 10G since thisbreed of windows is a bloated pig. I made it a HPFS/NTFS partition for speed.

Next add your swap partition and linux partition. Make sure you do nothave a separate partition for /boot. Things look better in GRUB if youkeep /boot in the root partition.

After you have installed linux go ahead and format the fat16 partitions:

2.3 Installing GRUB

Make sure you have the latest version of GRUB. I am using version0.5.96.1. The version that came with my distribution was out of dateand gave me a lot of grief. You can download the latest version athttp://www.fsf.org.

Now you'll want to install GRUB on the floppy disk. You don't want toinstall it on the hard disk yet because Windows 2000 will overwriteit.

Create the following menu.lst for GRUB. This file lives in /boot/grub.

Check that you can boot linux with the floppy disk. If you are havingtrouble you can drop in GRUB's command line and figure out what isgoing on. GRUB is very well documented, if you have any trouble pleasetake a look at the documentation.

2.4 Installing windows 2000:

I had to initialize the first partition before installing windows2000. Insert the DOS startup disk and reboot your computer. Once youget to the DOS prompt do the followings:

Now you can go ahead and install windows 2000. At some pointWindows 2000 will prompt you for the partition on which you want toinstall. The partition you created with fdisk should show up asdamaged or unformatted partition. Go ahead and select it.

Install Grub2 From Windows Iso

To hide the Windows 2000 menu edit a file called boot.ini that shouldbe in the C: drive. Change the timeout value from 30 to 0.

2.5 Installing DOS.

Insert the GRUB disk. When you see the menu insertthe DOS boot disk. Select partition 2 (floppy) from the menu.Hitenter. This will boot the floppy disk and hide partition 1 and 3.

Run FDISK and check that the C: drive is partition 2. Next installDOS:

2.6 Installing Windows 98

Insert the GRUB disk. When you see the menu insertthe Windows 98 Emergency disk. Select partition 3 (floppy) from the menu.Hitenter. This will boot the floppy disk and hide partition 1 and 2.

Run FDISK and check that the C: drive is partition 3. Next installWindows 98:

2.7 The final touch

Test that everything is working from GRUB:

You should be able to boot from all 4 operating systems from the GRUBfloppy disk.

Install Grub2 From Windows 8.1

If everything looks right you can go ahead and install GRUB on yourhard disk. From linux type:

You should now be able to boot all 4 operating systems from the GRUBmenu. Enjoy!

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Install GRUB2 on USB from Linux

How to Install Grub2 on USB from Linux to make a BIOS an UEFI bootable USB that can boot on all Machines. In the following tutorial, I'll show you one way of easily installing Grub2 Bootloader to a USB Flash Drive from an up and running Linux Operating Environment. Ubuntu was used to perform all of the steps in this guide. Upon completion, your device should be able to boot from both UEFI and BIOS machines using 32 or 64bit architectures.
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Install GRUB2 on USB from Windows

Install Grub2 On Windows Partition

How to Install Grub2 on USB from Windows. The following covers the process of installing Grub2 on a USB Flash Drive from within Windows. We will be using the grub-install.exe that ships with the grub-for-windows zip file. Upon completion of these bootloader instructions, your USB flash drive should be Grub2 bootable from UEFI or BIOS on all computer systems.
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