Ben's notes

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{{tag>[network pxe recovery]}}
=====System Rescue CD via PXE=====
From [[http://sirlagz.net/2012/01/29/how-to-pxe-boot-systemrescuecd/]], changed to use HTTP as that is faster than TFTP.

====Step 1 – Getting the SystemRescueCD files====
We need the ISO file that contains the files we will need to PXE boot SystemRescueCD. Once we have the ISO file, we need 4 files off the ISO file, which are:
  * initram.igz – this is the initial ramdisk that SystemRescueCD uses to boot
  * rescue64 – This is the kernel that SystemRescueCD uses, however there are other options that can be used.
  * sysrcd.dat – This contains the squash file system that becomes the root filesystem for SystemRescueCD
  * sysrcd.md5 – This is the signature file for SystemRescueCD, and isn’t actually needed, but good idea to have.

Once we have these 4 files, we need to place them onto our PXE server, put the sysrcd.* on the webserver. I have used the directory /tftpboot/srcd for my files on the server.

====Step 2 – Configuring the PXE Server====
We will need to edit the file that contains the configuration for the PXE server. If you have been following my PXE Server guide then the file is called default in the pxelinux.cfg directory. Using your favourite text editor, add the following lines to the configuration file:
<code>
serial 0 115200
default sr
prompt 0
timeout 0

label sr
  kernel srcd/rescue64
  append initrd=srcd/initram.igz netboot=http://1.2.3.4/srcd/sysrcd.dat console=ttyS0,115200n8
</code>
The last two lines will need customisation to your setup if you use a different kernel, or the IP address of your PXE server is different, as will the path for the kernel, initram and netboot parameters.

Once the configuration file is updated, you should now be able to boot SystemRescueCD over the network with little difficulty.