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Anaconda Installation Destination
This is the Installation Destination (disk selection) screen. Note that it shows two disks, the hard drive in the computer and the USB stick I am installing from. I have selected the 500GB hard drive as the target. At the bottom of the screen there is a link for Full disk summary and bootloader that you can click if you want to do special things with the bootloader installation. At this point you only specify the target disk(s) for the installation, when you are Done here, the next screen will get more details about this.
Anaconda Disk Options
This is the Disk Options screen - you can specify the filesystem type and decide whether you want to accept the default partitioning or you want to manually specify the partitioning. The defaults are perfectly reasonable. If you don't know any better, or you don't care, or you just want to the installation done in the quickest, easiest and most reliable fashion, just click Done to accept the defaults. The default filesystem type is LVM, but you can change that easily on the drop-down menu in the middle of the page. Until now I have always used ext4 filesystems, but starting with this release I am going to use BTRFS. If you want to manually specify or adjust the partitioning, you can choose that option here as well.
Anaconda Disk Partitioning
This is the Manual Disk Partitioning screen. Please excuse the fact that I am installing this on one of my test systems which already has a variety of Linux distributions on it, in addition to Windows 8.
If you are installing on a "normal" system, you would see only two lines here, the top one for New Fedora 20 Installation and the bottom one for Unknown (that is where anaconda lumps everything else, such as Windows, Recovery Boot and whatever other miscellaneous partitions are on your disk.
The important thing to remember here is that this screen can be as simple or as complicated as you want to make it. The simplest thing to do here is to click Create them Automatically, and anaconda will do what is necessary and then show you what it did so you can approve or edit it. I want to have a lot more control or where and how things are installed on my disks, so I set up all of the partitions manually. You can choose either of those extremes, or something in between.
I want to say a few more words about the presentation on this screen, too. Every other Linux distribution I am familiar with (and every other disk utility I am familiar with, for that matter) presents you with a view of the disk which corresponds to the physical layout of the disk partitions.
That is a more or less linear view showing sda1, sda2, sda3 and so on. But the thing that the Anaconda developers have realised here that is so absolutely brilliant is that a linear view of the disk is not really very useful in understanding how the disk is actually organised and used.
This was already true about MBR partitioned disks, especially if they used an Extended Partition which contained multiple Logical Partitions, and it is even more true of GPT partitioned disks and UEFI BIOS systems.
What Anaconda is showing you is the logical layout of the disk, which is much more useful at this point than the physical layout.
The system I am using here happens to be UEFI BIOS, so it has a separate EFI Boot partition which is shared by all of the different operating systems I have loaded (but doesn't necessarily have to be shared, there could be separate ones), and because there are other Linux distributions installed it already has a Linux swap partition which I will also want to share. A physical view of the disk would just show that those various parititions, but this logical view shows how they are grouped and used, and that can be extremely useful.