[ubuntu] install Ubuntu in unallocated Win 7 partition.

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http://ubuntuforums.org – Hi, This seems like it should be pretty simple but I am having problems determining Windows partition .vs Linux partition. I have 350Gb of unallocated space on my hard drive & would like to install Ubuntu there. From what I have read Ubuntu prefers to be in charge of the partitioning for GRUB. It looks like /dev/sda1 & sda2 are to be partitioned ntfs. Can I allocate (thru Windows) the 350GB as Logical ntfs partition & point to that space during the Ubuntu install? Or do I use GParted to carve up the 350GB of unallocated space (either during the install or beforehand)? (Hardware)