Ubuntu does not recognize partition with EFI (Windows 8.1 installed on this partition)

Question

Good afternoon everyone ! I install Ubuntu 15.10 Wily Werewolf next to Windows 8.1. But did not show the option to install next to the windows. So I went to partition manually. Installed Ubuntu ext4 partition on / dev / sda4 and swap on / dev / sda5. The windows were in / dev / sda1, sda2, and sda3. Friends, when I restart it went up in windows. I did a test, and I disabled UEFI boot and left active, only Legacy boot. Now only goes up Ubuntu. I believe this is fully related to UEFI and Legacy. If someone can help me solve .... I've given an update-grub and nothing to solve.

follows print of fdisk -l

Grub-update Results

Answer 1

In Ubuntu, open a terminal window and run:

sudo update-grub

That should update GRUB's configuration file and recognize your Windows installation.

Answer 2

If you are meeting with 'Grub' on booting your system. Then the option should be available to boot from windows in the grub menu,(I'm Specifying even this because your question was unclear --Incase you are a beginner--)

Other possibility is that Ubuntu(Grub) haven't recognized windows, So add a direct entry from 'Grub Configuration file'. If you think it is hard to do it.

Make a bootable Windows USB and boot from it and click on repair this pc.

After doing it you will not be able to got to Ubuntu, so now you download 'Easybcd' application for windows and then add that drive to the boot menu. Now you are good to go.

Remember the drive naming of your Ubuntu(i.e.,sda5 ,in your case) Now choose the same in easy-bcd.

If you get confused by for selecting the drive of Ubuntu, remember that it is the partition above swap.

I Hope this was Helpful.

Answer 3

I ran the live ubuntu and formatted by gparted the entire HD. After I created a new partition table ... I created as msdos. The previous partition table was gpt. After I installed windows 8 and then Ubuntu alongside Windows 8 without any problems. It is interesting to all professionals study more about partition tables, EFI and the like.

Now fixed annexed follows the print: