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PXE Boot using the Carroll-Net Server
Recovery Kit
Server recovery is an advanced challenge,
the Olympics of professional administration. You never know
just how difficult the challenge will be until you’re deep in
the fight, and the server tosses you the big obstacle. Success
with server recovery is all about the options you have
available in your toolbox. And one of the best to have is PXE
Boot – Preboot eXecution Environment.
The typical scenario is you need to recover
a Server without a CD-ROM drive. So you try to boot your USB
Flash Drive, only to discover the server’s older generation BIOS
doesn’t support boot from USB. Now what?
Enter PXE Boot
PXE was developed by Intel to standardize
booting diskless systems and is common in systems made after
1999. Today, you’ll find PXE technology embedded in everything
from Servers to Laptops, even Netbooks!
The idea of PXE is simple. A system at boot
time requests an IP address and PXE details from the network
DHCP server, then downloads the operating system from a TFTP
Server. Once booted, the system would NFS mounts a network
server for it’s applications.
Setting up a PXE Boot environment typically
required you setup a pretty complicated series of services. In
the past it meant configuring an NFS Server, a TFTP Server, and
making changes to the company DHCP server to respond with PXE
boot details. This could take most of the day just trying to
sort out the details – all the while, your Server Recovery
project is stalled.
With the Carroll-Net Server Recovery Kit,
there’s no need to waste your time configuring PXE. Armed with a
copy of the CnSRK you can have a PXE Boot Server setup in less
than 5 minutes.
To PXE Boot your Server, you’ll need three
things
1)
The Carroll-Net Server Recovery Kit (any build after
Feb-19th, 2010)
2)
A Laptop
3)
And an Ethernet crossover cable
Here are the steps to creating your PXE
Boot environment
Step 1 – Insert your CnSRK into your
laptop, and boot up
Step 2 – Assign an IP Address to your
laptop
System / Preferences / Network Connections
Select ‘Auto eth0’, Click Edit
Click ‘IPv4 Settings’ tab
Click the ‘Method’ drop down, and select
‘Manual’
In Addresses, enter
Address Netmask Gateway
172.16.0.1 255.255.255.0 0.0.0.0
Click Apply
Step 3 – Start DHCP Server
Applications / System Tools / GADMIN-DHCPD
Click Activate button
Step 4 – Connect your crossover Ethernet
between your Laptop and Server
Step 5 – Boot your Server
Note: Check your
Server’s
BIOS to ensure 'Boot from PXE' is enabled
That’s all there is to it – your Server is
now booted and you can now get on with the real work of
recovery. Download your Free copy of the Carroll-Net Server
Recovery Kit from
http://www.kleobackup.net
DHCP Caveat
We recommend you not have your Laptop
connected to your network while you are running PXE or it might
interfere with your organization’s central DHCP server. When
you connect the Ethernet crossover cable, make sure you
disconnect any other network cables. You should also turn off
your Laptop’s WiFi radio just to be safe. |