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    Fog 1.0.1 - Fresh install - iPXE questions

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    • R
      RipAU
      last edited by

      We don’t have access to control or change the existing DNS/DHCP server at all so I wouldn’t be able to use dnsmasq at all.
      I worked around this with the USB key previously and booting pxelinux was easy with iPXE on the usbkeys we setup.

      I’m in the process of building the iPXE build env but I’m having trouble embedding any scripts at the moment in CentOS.

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      • JunkhackerJ
        Junkhacker Developer
        last edited by

        after you install, you don’t need to build anything if you don’t want to
        just use your existing usb key and load up the included undionly.kpxe and the default.ipxe that fog generates and puts in the tftpboot folder.
        you can even chain boot them from pxelinux if you’ve got tools in that you want to use, there’s a guide on chain booting from pxelinux on the forums somewhere.

        signature:
        Junkhacker
        We are here to help you. If you are unresponsive to our questions, don't expect us to be responsive to yours.

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        • R
          RipAU
          last edited by

          I’ve pointed the iPXE usbboot keys at the undionly.kpxe but when it boots via tftp it loads the undionly.kpxe and gives an error saying error… default.ipxe.
          I am assuming it can’t read the default.ipxe file when it loads as I don’t think it is able to bring the network interface up (Using a Dell 755). So I’m also assuming I could be doing something wrong here.

          I’ve worked around that buy building the default into the embedded script with iPXE using the latest version from the website.
          So someone else might find this useful.

          [CODE]#!ipxe
          prompt --key 0x02 --timeout 1000 Press Ctrl-B for the iPXE command line… && shell ||
          ifopen net0
          set net0/ip 10.0.0.2
          set net0/netmask 255.255.255.0
          set net0/gateway 10.0.0.254
          set dns 10.0.0.254
          set next-server 10.0.0.253
          cpuid --ext 29 && set arch x86_64 || set arch i386
          params
          param mac ${net0/mac}
          param arch ${arch}
          chain http://10.0.0.253/fog/service/ipxe/boot.php##params
          [/CODE]

          I don’t think the gateway or dns are needed but I left it in anyway.

          After it boots I am getting some errors in linux saying “DHCP/BOOTP: Ignoring fragmented reply” Over and Over.
          I am thinking this isn’t related to the iPXE issues at all and more related to driver issues with Linux as it doesn’t seem to have the network card pop up when trying to do a full inventory.

          Thanks again guys for fog 🙂

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          • Jaymes DriverJ
            Jaymes Driver Developer
            last edited by

            [quote=“RipAU, post: 29114, member: 24459”]We don’t have access to control or change the existing DNS/DHCP server at all so I wouldn’t be able to use dnsmasq at all.
            I worked around this with the USB key previously and booting pxelinux was easy with iPXE on the usbkeys we setup.

            I’m in the process of building the iPXE build env but I’m having trouble embedding any scripts at the moment in CentOS.[/quote]

            This is why DNSMASQ is used in the first place. So if you can’t modify or control or change your DHCP sever, dnsmasq acts as a proxy dhcp server during pxe boot to help resolve the correct information.

            LOOK The wiki article is even tailored towards DHCP servers that are unmoddifiable!!!
            [url]http://fogproject.org/wiki/index.php/Using_FOG_with_an_unmodifiable_DHCP_server/_Using_FOG_with_no_DHCP_server[/url]

            WARNING TO USERS: My comments are written completely devoid of emotion, do not mistake my concise to the point manner as a personal insult or attack.

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            • Tom ElliottT
              Tom Elliott
              last edited by

              DNSMasq is an amazingly simple tool to help you out. I’d do as Jaymes and others are suggesting.

              If you must use the USB method, place the default.ipxe file in the same location you placed the undionly.kpxe. Hopefully that will help.

              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

              Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

              Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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              • R
                RipAU
                last edited by

                So I could use DNSMasq on a network that is already managed (with DHCP/DNS/etc.) by an outside party and not interfere with the existing DHCP server?
                I could only find references to replace existing DHCP and DNS forwarding but I haven’t tried using it next to an existing DHCP server?

                EDIT: Sorry didn’t see James reply. I didn’t realise DNSMasq could do this as I haven’t use it before. The only issue is every single computer is set to pxeboot in our environment and the existing Windows solution already has a imaging solution in place for other employees that aren’t part of our department but exist on the same network. (yay for lack of control over your own network)

                The default.ipxe file is in correct location , but it seems that as soon as I load undionly.kpxe via the iPXE usbkey it drops the network interface and can’t find the required files. It seems to load the network interface with undionly.kkpxe but then freezes with the word menu on the screen after it starts to load. I am suspecting it doesn’t like iPXE booting iPXE

                Cheers,

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                • R
                  RipAU
                  last edited by

                  Thanks guys,

                  Just doing a few tests with DNSMasq but I’m getting the same error with it not being able to load the default.ipxe file.
                  both the undionly.kpxe and default.ipxe exist in the same directory so I am not sure what the issue would be as it looks like undionly.kpxe is loading net0 and pulling a mac address. I’ll have a poke around a bit more.

                  Cheers,

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                  • R
                    RipAU
                    last edited by

                    I for the life of me cannot figure out why this isn’t booting and locks up just after it loads.
                    I am guessing it is a configuration error on my behalf as it does the same thing on Desktops and Laptops.
                    From what I gather in other forum posts and the wikipage.
                    This should work ok?

                    I removed the commented out options for the sake of this post not over flowing.
                    [CODE]
                    ################################################

                    FOG iPXE settings 5/6/2014 -

                    ################################################

                    port=0

                    log-dhcp

                    tftp-root=/tftpboot

                    dhcp-boot=undionly.kpxe,10.0.0.253

                    dhcp-no-override

                    dhcp-range=10.0.0.253,proxy

                    [/CODE]

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                    • R
                      RipAU
                      last edited by

                      [IMG]http://i.imgur.com/kdaG6T5.jpg[/IMG]

                      I wasn’t sure of the best place to upload an image so I used Imgur.

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                      • Jaymes DriverJ
                        Jaymes Driver Developer
                        last edited by

                        [quote=“RipAU, post: 29278, member: 24459”]So I could use DNSMasq on a network that is already managed (with DHCP/DNS/etc.) by an outside party and not interfere with the existing DHCP server?
                        I could only find references to replace existing DHCP and DNS forwarding but I haven’t tried using it next to an existing DHCP server?

                        EDIT: Sorry didn’t see James reply. I didn’t realise DNSMasq could do this as I haven’t use it before. The only issue is every single computer is set to pxeboot in our environment and the existing Windows solution already has a imaging solution in place for other employees that aren’t part of our department but exist on the same network. (yay for lack of control over your own network)

                        The default.ipxe file is in correct location , but it seems that as soon as I load undionly.kpxe via the iPXE usbkey it drops the network interface and can’t find the required files. It seems to load the network interface with undionly.kkpxe but then freezes with the word menu on the screen after it starts to load. I am suspecting it doesn’t like iPXE booting iPXE

                        Cheers,[/quote]

                        I use dnsmasq to override the WDS settings my other co-workers have infringed upon my building. Without dnsmasq I can’t boot my server. The whole overcoming Novell’s 6.5 limitations are another story.

                        You may wish to look into the other files that Tom has been providing as fixes in the undionly.kpxe and ipxe.kpxe files. [url]https://mastacontrola.com/ipxe/[/url]
                        thread [url]http://fogproject.org/forum/threads/040ee119-error-on-boot.10493[/url]

                        I would also edit your ltsp.conf. I know some environments will not boot if that those two boot lines aren’t present.
                        It appears that it still wants to connect and that it is even finding the undionly file but it doesn’t like it.

                        [code]
                        pxe-prompt=“Press F8 for boot menu”, 3
                        pxe-service=X86PC, “Boot from network”, undionly[/code]

                        WARNING TO USERS: My comments are written completely devoid of emotion, do not mistake my concise to the point manner as a personal insult or attack.

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                        • R
                          RipAU
                          last edited by

                          Thanks for that, I did have those options initially but disabled them to bypass the timeout.
                          I’ll add them back in and test the new iPXE from the posts.
                          As it seems to me a iPXE issue and not a network issue as I have STP disabled on my current switch I’ll have a read and see if I can get it working. Thanks for the help.

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                          • R
                            RipAU
                            last edited by

                            I found a work around and tested a few things I found from the forum and iPXE website
                            It seems seems to be working well on all the computers I have tested so far -
                            [url]http://fogproject.org/forum/threads/ipxe-issues-work-around.10727/[/url] Just FYI if it helps anyone.

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