Ubuntu – Not getting into GRUB (no sign of Ubuntu) after running Boot-Repair to fix grub rescue

I've had a dual boot of Windows 7 and Ubuntu 12.10 (Quantal Quetzal) on my notebook for quite a while and today when I started it I got into grub rescue instead of the regular GRUB menu and I couldn't boot either of my 2 operating systems.

I came across boot-repair in the help section of ubuntu (https://help.ubuntu.com/community/Boot-Repair). So I created a live-usb of Ubuntu 12.10 and followed the instruction to get boot-repair and run it and it ran successfully and told me to reboot.

After doing this boot-repair, whenever I start my notebook I don't get into GRUB; my Windows 7 just boots automatically, so I don't know how to get on my Ubuntu anymore.

Part of the boot-repair log*:

=> Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sda.
 => Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 7/2008: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /boot/bcd

sda2: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 7/2008: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Boot/BCD

sda3: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  Windows 7
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda4: __________________________________________________________________________

    File system:       Extended Partition
    Boot sector type:  -
    Boot sector info: 

sda5: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 7/2008: NTFS
    Boot sector info:  According to the info in the boot sector, sda5 starts 
                       at sector 2048.
    Operating System:  
    Boot files:        

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 4.07 2013-07-25
    Boot sector info:  Syslinux looks at sector 58112 of /dev/sdb1 for its 
                       second stage. SYSLINUX is installed in the /uui 
                       directory. No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /boot/grub/grub.cfg /casper/vmlinuz.efi.signed 
                       /EFI/BOOT/grubx64.efi

*_{editor's note: pastie link was gone; the above was copied from the answer to clarify the question.}