I lost Windows boot option on installation of Fedora 22

[Fred Smith]

On Thu, May 28, 2015 at 10:16:27PM +0000, Bill Oliver wrote:
> 
> Help!
> 
> I had a dual boot box using Kubuntu and Windows 8.  In GRUB, the Windows
> option was listed as "Windows Boot Loader".  When Fedora 22 came out
> yesterday, I jumped to it.  I installed it without a problem, but the
> Windows option is no longer listed.
> 
> The Windows partitions are still there(the fdisk output is
> below.
> 
> Any help on how to add it to the boot options?

I dunno if this will help you with F22, but here it is, FWIW.

I have a dual-core netbook that came with Win7, and I shrank the
partition and installed F19 in the resulting free space, back when F19
was not EOL. The F19 installation found the bootable windoze partition(s)
without trouble and set up Grub accordingly.

But when I replaced the F19 system with Centos-7, it did not.

After some digging and list replies to my queries, one kind person told
me to try this:

	1) Install ntfs "support"
	yum install -y epel-release
	yum install -y ntfs-3g ntfsprogs

	2) re-run the grub config gen script
	grub2-mkconfig -o /boot/grub2/grub.cfg

now, for Fedora, you probably don't need to install the EPEL repo,
I think ntfs-3g is probably available in the Fedora repos.

If, by any chance, ntfs-3g and ntfsprogs are NOT installed already,
that would explain why the windows partition was not found.

to make this long story short(er), once I did those steps, Grub now
supports booting windows as well as Centos.


-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us -----------------------------
   "For the word of God is living and active. Sharper than any double-edged 
   sword, it penetrates even to dividing soul and spirit, joints and marrow; 
              it judges the thoughts and attitudes of the heart."  
---------------------------- Hebrews 4:12 (niv) ------------------------------