Gnu Grub boot help

[Thepixelbro]

I just installed ubuntu on a partitioned disk and now when i turn on my computer it goes into gnu grub. I would like to learn how to use it but right now i need to know how to use chainloader to boot my windows.

[Dufffman123]

This is a quote from the GNU GRUB manual mavbe this will help you with your problem:

 

Operating systems that do not support Multiboot and do not have specific support in GRUB (specific support is available for Linux, FreeBSD, NetBSD and OpenBSD) must be chain-loaded, which involves loading another boot loader and jumping to it in real mode.

The chainloader command (see chainloader) is used to set this up. It is normally also necessary to load some GRUB modules and set the appropriate root device. Putting this together, we get something like this, for a Windows system on the first partition of the first hard disk:

menuentry "Windows" {
    insmod chain
    insmod ntfs
    set root=(hd0,1)
    chainloader +1
}

On systems with multiple hard disks, an additional workaround may be required. See DOS/Windows.

Chain-loading is only supported on PC BIOS and EFI platforms.

 

Also here is a link to the whole manual if you need it:

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