I bought a new laptop - Dell Inspiron 3521 which came preloaded with windows 8 and GPT partitioning. As usual, My first step after buying a new laptop is to install Ubuntu.
Hence followed this guide - Installing Ubuntu on a Pre-Installed UEFI Supported Windows 8 system and disabled secure boot (UEFI is still enabled) and installed Ubuntu 13.04
Now restarted my system. Now I don't see grub. When I selected F10 to enter boot options, I see both Ubuntu and Windows boot manager options. I am able to enter Windows but when i select Ubtuntu, it takes me to grub command line but not GUI. I even tried repairing with boot manager but still it didn't help. boot repair continues till some steps and fails saying - "Please close all your package managers and continue" . I have verified that there are no package managers running. But still it says the same. Here is my boot repair summary - http://paste.ubuntu.com/5779528/
I tried other ways as well but was not able to boot into Ubuntu.
Please help. Thanks