Latitude 7202 FOG PXE menu freezes

  • Server
    • FOG Version: 1.3.5
    • OS: Ubuntu 14.04.5
    • Service Version: Dell Latitude 7202 Bios A13
    • OS: Windows 10

    Switched to Legacy boot since UEFI PXE boot was not working.

    FOG menu appears and “Boot from hard disk” counts down from 20.

    I’ve hooked up a keyboard to the USB port on the side of the tablet, pressing a key on the keyboard will cause the countdown to stop, presumably freezing the menu.

    I’ve encountered this issue on two new 7202’s, I’ve tried different keyboards as well. I even flashed one with a newer bios A15 and now it doesn’t PXE boot properly at all.

    Any ideas?

    Thanks, Darren

  • Senior Developer

    @dwcoleman Do you still see this issue? Have you tried on different devices? Always the same problem?

  • Partclone Gzip

    I have two other images captured via PXE using Partclone Gzip that worked.

  • Moderator

    @dwcoleman What imagemanager do you use for this image? (on the image definition page)

  • See below. /dev/sdb1 was my second 700GB volume that I added to the system. I thought it was the problem at first but verified it wasn’t.

    I might downgrade to 1.4.1 again at this point since I"m running out of ideas.



  • Moderator

    @Sebastian-Roth said in Latitude 7202 FOG PXE menu freezes:

    On the other hand… why would it fail that early (calculating bitmap…) if disk space is an issue?

    FWIW: The disk space issue is a bit misleading, we discovered it basically means that partclone failed for some reason and there is no way to trap the error programmatically.

  • Moderator

    Afaik 141 is a pipe issue. Meaning that while partclone is still piping data, the compression manager has already exited (assuming). As to what caused it, I have no idea.

  • Senior Developer

    @dwcoleman Do you have enough free disk space on your new server (/images partition)? Please post the output of df -h and ls -al /images on your FOG server here in the forum.

    On the other hand… why would it fail that early (calculating bitmap…) if disk space is an issue? Exit code 141 I read means broken pipe. Why would partclone fail to read /dev/sda1 and not be able to deliver data trough the pipe? (just thinking out loud here)

  • Just recreated the image using @george1421 's excellent instructions, same error persists.


  • Senior Developer

    @dwcoleman Re-creating the USB FOS image is a good idea. Could be that the addition of ZSTD compression is causing an issue here?

  • So I created a new permanent VM for my Ubuntu installation. I then added a second volume and moved /images successfully, mounted it, and it works fine for ipxe clients.

    I can no longer USB image the 7202 tablets though using Fog 1.4.2 on the new server. To prove this out I fired up my local VM and updated grub.cfg and I’m pulling an image using Fog 1.4.1.

    Error is below. I’m pretty much a newbie to Fog, do I need to update my Fos USB image

    Thanks, Darren


  • I just needed to sysprep the Windows 10 image and I was able to image it successfully.

  • Moderator

    @dwcoleman said in Latitude 7202 FOG PXE menu freezes:

    You’re right, that was the issue

    Please clarify what was the issue for others that might find this thread.

    And great on being able to image.

  • @george1421

    You’re right, that was the issue. I don’t have a lot of experience imaging UEFI.

    The FOS solution should work for us, I’m booting a second tablet currently that I imaged and it seems fine.

    Thanks so much for the help.


  • Moderator

    @dwcoleman said in Latitude 7202 FOG PXE menu freezes:

    I also tried ipxe.pxe, it wouldn’t even boot to the menu.

    If you want uefi mode, two things.

    1. Make sure that secure boot is disabled or you WILL have an issue with cloning.
    2. If ipxe.efi doesn’t work try the older kernel ipxe7156.efi That kernel does seem to work on the MS Surface Pros better than ipxe.efi.

  • Moderator

    @dwcoleman said in Latitude 7202 FOG PXE menu freezes:

    I was able to pull an image this morning. I’m having an issue restoring it to another tablet

    Did you sysprep the image before you captured it?

    The unclean mount (I feel not the correct error) we see with windows 10 if its not shut down correctly before image capture. Remember with Win10 shutdown is an enhanced sleep mode not a true shutdown.

    If you use sysprep before cloning, then have syspre power off the computer. That will properly close the disk for cloning.

  • @george1421

    Thanks, I was able to pull an image this morning. I’m having an issue restoring it to another tablet, I’m getting a partition error about an unclean mount. I"m working my way through that issue.

    Would using UEFI be easier you think?

    I also tried ipxe.pxe, it wouldn’t even boot to the menu.


  • Moderator


    (just restating what we know already)

    1. You are using undionly.kpxe (which is fine, you could try ipxe.pxe but might suspect you will get the same issue)
    2. When you reposition to another menu item using the keyboard it freezes
    3. I assume the same for when you use the touch screen on the tablet.
    4. You are now running the latest version of fog 1.4.1 so you also have the latest version of iPXE.
    5. When the tablet is in the dock and a keyboard is connected to the usb 2.0 port it still hangs.

    Well if the above is true we just removed 2 of my three things we can do. We still have booting directly info FOS from a usb flash drive. If this fails then FOG is not the solution for this device. We will have to wait until the iPXE folks can catch up their design to your hardware.

    There is one caveat using the usb booting into FOS. Doing it this way we loose the tight integration between the pxe booting client (FOS) and the FOG management function. Meaning you MUST schedule a task before usb booting into FOS. If you fail at this you will get an error about the task not being defined. Just remember schedule the task first then usb boot into FOS.

    Look at the FOG IM chat bubble at on the forum tool tray at the top of the browser

  • Upgraded to FOG 1.4.1, same issue. I’m using undionly.kpxe as well, I’ve tried undionly.kkpxe as well.

    The 7404 seems pretty similar to the 7202, its just an extreme rugged version.


  • Legacy mode would be easier I think. Most of the machines I image are Windows 7, but I’m starting to get some 8.1/10 machines.

    I have the desktop dock, one USB 2.0 in the front. and two 3.0 in the back. Also the tablet itself has one USB 3.0 port. I’ve tried all of the usb ports, they all freeze the PXE menu.

    I’ll upgrade to current and report back.



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