First of all I'm Italian, so I apologize for my bad English.
Second, I have a big problem. I have a new Sony Vaio Pro 13 (so, it's an ultra-book WITHOUT the CD drive), which had Windows 8 pre installed. I needed to install Ubuntu in dual boot for university purposes. So, I shrunk the Windows partition and created a new partition, and from a boot-able USB stick I created a swap partition and an ext4 partition, and installed Ubuntu. Due to several failures, I used the Boot-repair tool, which installed the grub 2 boot-loader, from which I could start Ubuntu and Windows.
Anyway Ubuntu didn't start, it showed me an error, but this is not the problem. The problem is that, due to this error, I decided to try again (because maybe I did something wrong), so I logged into windows and deleted the two Linux partitions, creating an unallocated space, and rebooted with the USB stick. But I got stuck in the "grub rescue".
I looked in the internet, but I found nothing, because
- the booting order is FIRST the SSD drive and second the USB stick (whenI installed Ubuntu before, I loaded the USB stick from a Sony UEFI-like menu, which had 4 options, and one of them was "boot fom USB");
- I don't have a CD/DVD drive, because the laptop is an ultrabook;
- I don't have Linux installed on the drive any more (because as I said above, I deleted the partitions).
What can I do? In some days I have an university exam and I need to get to my documents as soon as I can..