I have tried different things from the answers here, but there is still "no device for boot loader installation" when I boot from USB. This is the first time I am installing Linux.
I have Win 7 on HP Elitebook 840 and I want a dual boot (I would also say yes to replace Windows if I was sure I would be able to install Ubuntu and work)
Steps already taken:
1) Several defragmentations in Defraggler
2) Creating a partition in Windows (35 GB)
3) Creating again a new partition in GParted (or rather allocating it so it is recognized; Ubuntu quick start), formatting to ext4. Mount option is not available when I click on that.
Current status:
/dev/sda1 ntfs (boot Win)
/dev/sda2 ntfs drive C
/dev/sda3 ext4 new partition
note: Install alongside vs replace Windows screen is actually not showing up, it goes directly to device-type-mount screen and there is nothing to choose.