I was trying to install a new operating system today, and I have tried before, but ever since the 14.04 release of Ubuntu, I have not been able to install any more OS. So, I tried formatting the Ubuntu OS partition into an unknown file type for it, so it would just go past the grub screen, and allow to me install this OS. However, once I did this and rebooted, this is what I found:
error: unknown filesystem.
Entering rescue mode...
grubrescue>
Now, before anyone says anything, I don't have a Windows repair disc, because my computer came with Windows on it. 2nd, I don't have a Ubuntu Live CD. I got Ubuntu approximately a year ago, and have since lost the location of the disc.
This is being written from my phone, thanks for reading. Hope somebody can help me. :)