Three release options are now available for 32-bit as well as for 64-bit.
* An ISO, to be burned to a physical cd or used as an image to install a virtual machine.
-* A bootable USB disk-key image (minimum 1G USB stick needed)
+* A bootable USB disk-key image (minimum 2G USB stick needed)
* A GUI bootable USB disk-key image with a full X environment (4G USB stick needed).
The release ISO images should be available on most of the [[mirrors|mirrors]]. If the ISO is not available on a certain mirror, please try another one or download it from the DragonFly master site. Each image is in the "Live CD" format, meaning that it boots into a running and fully functional DragonFly system, which can be used for testing or system recovery tasks as well as installation
+The GUI bootable USB image also contains the DragonFly git repo in /usr/src and the PkgSrc git repo in /usr/pkgsrc. The code can be trivially checked out using these repos and even an old repo can be incrementally updated from master sites post-install.
### MD5 sums
**Using deduplication** - Hammer volumes need to be upgraded to version 5 to use deduplication. The 'hammer version-upgrade <filesystem> <version>' command will perform this in-place.
-** APIC_IO** - The APIC_IO kernel option is no longer needed.
+** APIC_IO** - The APIC_IO kernel option can now also be controlled via the hw.apic_io_enable /boot/loader.conf tunable. The kernel option simply specifies the default now.
**VirtualBox, Virtual PC, and VMWare users** - Unless your virtual hard disk is 50G or larger, we recommend doing a UFS install and not the default HAMMER install. We also recommend installing from the CD ISO and not the GUI IMG. A more serious installation should use HAMMER with at least a 50G disk image and can install from the GUI IMG.