Dual boot UEFI Windows 7 and Ubuntu 12.04 (both 64 bits). W7 entry doesn't appear in GRUB
- by Joe
After trying to install both OS during 2 days, I'm confused and getting mad...
I have SSD 128 GB and HDD 500 GB both empty. My laptop is Asus K55VM. BIOS support UEFI.
What I have done:
Install new SSD (Samsung 830 128GB)
Use GParted on liveCD to create new table of partitions (GPT) and create 3 partitions (in the SSD) for different purposes:
Partition 1: 80 GB (w7);
Partition 2: 30 GB (Ubuntu 12.04 -Just / -);
Partition 3: 10 GB unused (for future extesion of the other partitions)
Install Windows 7 (with UEFI) in Partition 1. This create:
/dev/sda1 - 100 MB for System (UEFI boot I guess) - FAT32
/dev/sda2 - 100 MB aprox. for MSR
/dev/sda3 - 79.800 MB aprox. for Windows7 data
In this point everything works fine. I have W7. Now I install Ubuntu 12.04 amd64 (with UEFI) as follows:
Install / in Partition 2 - /dev/sda4 30 GB ext4, and in the hdd I install /home and swap.
I select bootloader in /dev/sda1 (where it's supposed to be the UEFI boot).
I install updates and reboot.
Problem: Now just appears grub menu with Ubuntu entries and not Windows 7.
Alternative solution found: When I turn on laptop, before loading GRUB I press ESC key and appear BIOS boot, so I can select to boot the Windows partition, Ubuntu partition, DVD, USB, etc... but I think is not the best way to boot different OS.
I've tried: sudo update-grub2 with no success.
What can I do??
