
This post lists links to all of the installers you'd likely use to work with the Ultra96-v2. You will need a Xilinx account to access these links. It also lists a link that lists where you can get all the hardware you'll need.
Get a Xilinx Account
Go to xilinx.com and click:

...or go to https://login.xilinx.com/.
Links
This guide:
PetaLinux Build Guide for Ultra96-V2
...needs:
PetaLinux 2018.2 Installer (TAR/GZIP - 6.15 GB)
MD5 SUM Value : 686edec30123bacf94102f2bc6ed70ff
https://www.xilinx.com/member/forms/download/xef.html?filename=petalinux-v2018.2-final-installer.run
Ultra96 BSP
https://www.xilinx.com/member/forms/download/xef.html?filename=xilinx-ultra96-reva-v2018.2-final.bsp
You may also want one of::
SDK 2018.2 Web Install for Windows 64 (EXE - 50.4 MB)
MD5 SUM Value : 59608302b8ca67537246bcb962bfac5d
https://www.xilinx.com/member/forms/download/xef.html?filename=Xilinx_SDK_2018.2_0614_1954_Win64.exe
SDK 2018.2 Web Install for Linux 64 (BIN - 99.29 MB)
MD5 SUM Value : 4e6e7c0623da7d22cb196a1ed920ccc0
https://www.xilinx.com/member/forms/download/xef.html?filename=Xilinx_SDK_2018.2_0614_1954_Lin64.bin
...and:
2018.2 Full Product Installation Vivado HLx 2018.2: All OS installer Single-File Download (TAR/GZIP - 17.11 GB)
MD5 SUM Value : e878f870bb9d1dfc882b005550cfdbef
Get the Hardware
Reference
Logo created from elements in [link]