Intro ===== In this directory you can find everything needed for netbooting your physical nodes with the latest Danube Cloud image over the internet. The main intention of this internet netboot is to make it very easy to install Danube Cloud on your machines, e.g. in hosting centers that support mounting a remote ISO image. Alternatively, you can burn these ISO files on the (mini) CD medium and boot from them. What does it do =============== You can find here two minimalistic .ISO files: esdc-netboot-hn.iso - for internet-booting of the first compute node esdc-netboot-cn.iso - for internet-booting of all other compute nodes These ISO files contain only the iPXE bootloader with an embedded script that points here (http://pxe.danubecloud.com/pxe) and chainloads the iPXE scripts from this directory (esdc-[hc]n-latest.ipxe). The iPXE scripts will take care of everything that is needed for downloading and running full latest Danube Cloud image. During the boot, everything will look like you've booted locally over the PXE. You can even use this approach as a permanent boot solution - if you don't install the Danube Cloud on disk, the next time the node will boot from the internet again and use the configuration stored on local disks (normal boot procedure). Of course, if you want to use this in production, you probably want to build your own netboot ISOs that point to your own infrastructure. Also please note that the first compute node (..hn.iso) must be installed on HDD (answer Yes when installer asks whether DC should be installed on disk). Requirements ============ - a machine that is able to boot from virtual or physical ISO / CD-ROM - working DHCP server that correctly assigns IP address and DNS servers - internet connection (port 80 to pxe.danubecloud.org) - at least 8 GB RAM (downloaded image must fit into RAM together with the OS) Troubleshooting =============== If for some reason the download of the Danube Cloud image fails during boot, just reboot the machine and start again. You may choose "Reinstall" option in the iPXE menu just to be sure you're starting a fresh install. And don't forget to disconnect the ISO after the install before reboot.