DHCP issue PXE-E51

[Sebastian Roth]

@slashdotpwn Any news on this?

[slashdotpwn]

I actually reinstalled the OS and FOG now I am running into a brand new problem with DHCP. The server is up and running but I keep getting error PXE-E51 and cannot seem to resolve it.

[Sebastian Roth]

@slashdotpwn said in Issues after kernel update.:

The server is up and running but I keep getting error PXE-E51 and cannot seem to resolve it.

So what did you try so far? What kind of DHCP do you use? FOG isc-dhcp (default) or dnsmasq or windows DHCP server or an external router/firewall? Best if you could post a picture of the error here. Sometimes there are details on screen that help us solving things that you might not see.

[slashdotpwn]

So I installed fog on a brand new install of Ubuntu 16.04. I may have accidentally set fog to do DHCP and I am not sure how to change that. When I try connecting to the server over ethernet to image a machine or to make an image I get the error.

[Sebastian Roth]

@slashdotpwn Please answer the questions and post a picture!

[slashdotpwn]

So I am not sure on which DHCP I set up I believe it was the default to be honest with you.

[Sebastian Roth]

@slashdotpwn Looks like there is no DHCP server in that network at all. Edit /opt/fog/.fogsettings on your FOG server and try to find the line dodhcp='N'. Just change that to dodhcp='Y' and re-run the installer.

[slashdotpwn]

I don’t even have a .fogsettings file.

[Sebastian Roth]

@slashdotpwn Then simply re-run the installer and make sure you say y (yes) when it asks you if it should setup DHCP!

[slashdotpwn]

Okay now when I try to run the installer it says a previous version of fog settings is there. When I go to /opt/fog/ I see nothing.

[Sebastian Roth]

@slashdotpwn In Linux files starting with a dot are “hidden”. So you need to use the -a option with ls to actually see it. ls -al /opt/fog/ should show the file!

In case you want to edit it using a GUI editor you probably need to fiddle with the file explorer options to make it show hidden files.

[slashdotpwn]

Okay I was able to use CHOWN to take control and edit the file. Rerunning the installer. Wish me luck.

[Sebastian Roth]

@slashdotpwn On the console run sudo chmod 666 /opt/fog/.fogsettings && sudo chmod 777 /opt/fog/ (not nice but should fix this for you!)

[slashdotpwn]

Even after changing the fogsettings file it skipped the dhcp setup

[Sebastian Roth]

@slashdotpwn How do you run the installer? Best if you switch to the proper root account for running it. I’d say, remove the config ands start over:

sudo su -
rm /opt/fog/.fogsettings
cd /dir/where/fog/is
cd bin
./installfog.sh

[slashdotpwn]

Okay retrying the install now. Will let you know the results. Thanks for your patience by the way. I am usually pretty good with this kind of stuff.

[slashdotpwn]

When setting up the DHCP. It said no router address found. I am setting it up as a stand alone. What should I put in this case.

[Sebastian Roth]

@slashdotpwn What do you mean by standalone? Don’t you have a router/gateway in your network to access the internet? Just put in this address when the installer asks you for it.

[slashdotpwn]

It isn’t connecting to the internet though. I am setting a static IP and connecting to it that way.

[slashdotpwn]

Okay so I found out that dhcp was turned off. It looks like my dhcpd.conf file is maybe wrong. It looks like it isn’t assigning ip addresses. I am leaving the office for tonight. I will be back in the morning to hopefully figure this out.