When I install linux
with the condition of the computer only has a windows partition. I
usually use the gparted application to set the linux partition. GParted
is a free partition editor for graphically managing your disk
partitions. With GParted you can resize, copy, and move partitions
without data loss.
http://sourceforge.net/projects/gparted/files/gparted-live-stable/
Installation gparted on archlinux you can see here.
You can Flash to flash disk using unetbootin.
Create Linux Partition Using Gparted
Then boot pc/notebook using live usb.Then run gparted. As for example this my partition.
For Example the windows partition is on /dev/sdb5, right click on /dev/sdb5 then click on resize/move. It will show like this.
Now you can resize, click on arrow left/right, if you set left arrow, the new partition will be located before the old partition and vice versa. For this example i choose left arrow. (Grey area is a new partition 27gb), then click resize/move.
A new partition is unallocated.
Right click on Unallocated, then click new & set your partition. For linux (ext4), then click add.
A new partition is created.
Then click on (->), apply all operations, then quit, reboot. Now you can install linux on new partition that you created.
^_^