• Hello everyone, first time poster and newbie to Linux. A bit of a fog issue here.

    Currently running FOG 0.32 on CentOS 6.4. At the PXE boot screen I see the quick image, which prompts for a password. I know I need to change the master password, but everytime I do in the FOG management, I get an error saying “PXE Menu updated failed! Unable to upload file.” Have tried running both virtually and on a physical machine, no dice either way.

  • Followed those steps and it is now working perfectly aside from server errors on our part. Thank you so much for the help

  • Good luck then.

  • Thank you so much for the feedback. Having a little trouble getting the laptops to boot from PXE, but that’s our server, not FOG. I did find the config file and backed it up before changing passwords. Will try when I get back to the office.

  • Also,

    When editing the default file,

    You’ll find the first PASSWD line as:
    MENU MASTER PASSWD <YOUR ENCRYPTED PASSWORD> <-This controls when somebody hits the ESC key>

    and the menu options (full host reg, quick img, etc…) as:
    MENU PASSWD <YOUR ENCRYPTED PASSWORD> <- When trying to enter a menu option.

    For your knowledge, you shouldn’t need them to be encrypted, but, if you prefer to have it encrypted fog has a utility to do that for you which is located in:


    To run the command type in a terminal:

    /opt/fog/utils/md5pass <YOUR [B]UNENCRYPTED [/B]PASSWORD>
    Then copy the line printed out which will look something like:
    $1$aobkelGl$gX3rr1kioMdm12KvCCW7N0 (this is the md5pass of password)

    Copy that line, and paste it in your desired spots.

  • The location for the file is in /tftpboot/pxelinux.cfg/default

  • I would be fine if I could update it manually even, but I cannot find the config file for FOG PXE though.

  • To my knowledge that update system has not worked. You could try by making sure the pxelinux.cfg folder and files are writable by apache just to see but I’m not 100% sure.