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| 18:30.02 | diegoviola | hi guys |
| 18:30.07 | diegoviola | is pxe some kind of virtual machine? |
| 18:30.11 | diegoviola | does it run from an iso file or? |
| 18:30.14 | diegoviola | can you pls tell me about it |
| 18:30.55 | diegoviola | i need to automate some network install for a few computers... and i heard about pxe |
| 18:31.07 | diegoviola | how does it work? |
| 18:32.56 | ScytheBlade1 | http://en.wikipedia.org/wiki/Preboot_Execution_Environment |
| 18:33.07 | diegoviola | yah read that |
| 18:34.16 | ScytheBlade1 | http://pxe.dev.aboveaverageurl.com/index.php/PXE_Booting |
| 18:34.33 | diegoviola | thanks |
| 18:35.53 | diegoviola | "The Preboot eXecution Environment (PXE, also known as Pre-Execution Environment, or 'pixie') is an environment to boot computers using a network interface independently of available data storage devices (like hard disks) or installed operating systems." |
| 18:36.04 | diegoviola | when they talk computers, do they mean real computers? |
| 18:36.11 | diegoviola | physical computers |
| 18:36.16 | diegoviola | or just vm? |
| 18:36.49 | ScytheBlade1 | well physical computers |
| 18:36.49 | ScytheBlade1 | but if VMs have a PXE stack, them too |
| 18:36.49 | ScytheBlade1 | vmware does it |
| 18:37.42 | diegoviola | nice |
| 18:50.06 | diegoviola | so with this i can boot real computers from the network? |
| 18:51.10 | ScytheBlade1 | yes |
| 18:51.24 | diegoviola | wow |
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| 19:15.04 | blendmaster1024 | haha!!! got the pxe boot working!! |
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| 21:45.01 | Nirkus | 3hehe |
| 21:46.19 | Nirkus | diegoviola: when i wrote it, i meant real computers as well as vms ;-) |
| 21:50.41 | diegoviola | Nirkus: awesome |
| 21:52.30 | diegoviola | Nirkus: does my NIC has to support PXE in order to turn on the machine automatically etc? |
| 21:55.26 | Nirkus | diegoviola: turning on your machine via network is not PXE |
| 21:55.33 | Nirkus | its called Wake On LAN |
| 21:56.31 | diegoviola | oh ok |
| 21:56.36 | diegoviola | thanks |
| 21:56.44 | Nirkus | and its most likely to work with onboard NICs |
| 21:56.54 | diegoviola | i see |
| 21:57.06 | diegoviola | i need to learn more about PXE |
| 21:57.10 | diegoviola | goes to read |
| 21:57.17 | diegoviola | still don't know what PXE is exactly |
| 21:57.48 | Nirkus | diegoviola: PXE is a protocol near to PXE to load some bootloader via network |
| 21:58.24 | diegoviola | bootloader like grub? |
| 21:58.44 | Nirkus | mostly it's used as part of DHCP with the DHCP options next-server and filename |
| 21:59.07 | Nirkus | diegoviola: grub2 has the ability of booting on PXE NICs actually |
| 21:59.14 | diegoviola | nice |
| 21:59.40 | Nirkus | but, you will need a bootloader designed to run on top of the PXE NICs boot ROM firmware |
| 22:00.10 | Nirkus | and the last guy in here using grub2 had some undefined problem |
| 22:00.31 | diegoviola | ok i want to try this |
| 22:00.59 | diegoviola | what do i need? |
| 22:01.02 | Nirkus | there is also pxelinux - very low level 'user interface' but it works ;-) |
| 22:01.27 | Nirkus | diegoviola: first, you need to know what exactly you want to boot via PXE |
| 22:01.43 | diegoviola | what can i boot with it? |
| 22:01.59 | Nirkus | diegoviola: you will at least need a server providing the correct DHCP packets and serving the PXE boot loader via tftp |
| 22:02.00 | diegoviola | i want to boot a linux distro |
| 22:02.31 | diegoviola | i have an existing machine running linux |
| 22:02.39 | Nirkus | most linux distros have installer packages to be loaded via PXE |
| 22:03.00 | diegoviola | two machines actually |
| 22:03.07 | Nirkus | you can run many linux distros diskless using PXE and NFS - with some effort |
| 22:03.18 | diegoviola | nice |
| 22:04.56 | Nirkus | diegoviola: in most cases PXE is basically: |
| 22:05.20 | Nirkus | (1) PXE NIC loads and asks for DHCP offer containing next-server and filename field |
| 22:05.50 | Nirkus | (2) PXE NIC loads bootloader (filename) via TFTP from $next-server |
| 22:06.14 | Nirkus | (3) PXE bootlader starts and maybe loads some configuration from $next-server via TFTP |
| 22:06.31 | Nirkus | (4) PXE bootlader loads kernel + initrd via TFTP and boots it |
| 22:06.44 | Nirkus | the rest is Linux.. |
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