Tom, thanks for your help, but I managed to self-resolve this just as your responded.

Two things fixed it. First, overwriting the default file by going back into the web interface and saving the pxe menu options fixed the menu for me.

Second, I learned a very important lesson today about never using the ssh client in the web interface to edit files. As soon as I got back to my computer and used putty to ssh in and modify the default file, and configured it for chain loading. It worked just fine.

Thank you for your quick reply!

Originally, I had some issues with the 790 being able to boot to the primary hard drive from the fog menu. So I attempted to follow the instructions [URL=‘http://www.fogproject.org/wiki/index.php?title=Boot_looping_and_Chainloading’]here[/URL], because all of the forum posts seem to indicate that was the problem.

I had trouble finding any newer versions of syslinux that even had the chain.c32 file in them. So I used the version listed in that wiki article (4.04).

Ever since making any changes to the /tftpboot/pxelinux.cfg/default file, instead of the vesa menu pulling up like it should, whenever I PXE boot, I wind up at a screen with “boot: _” that just loops.

I have tried restoring the original file. I have rebooted the server to make sure any necessary services have restarted.

I would prefer to get the chainloading working so that I can PXE -> hard disk in my boot order, but getting the PXE menu to work at all at this point would be my primary concern.

I have included a copy of my pxelinux.cfg/default file

[CODE]
DEFAULT vesamenu.c32 MENU TITLE FOG Computer Cloning Solution MENU BACKGROUND
fog/bg.png MENU MASTER PASSWD $1$MqHtEmUa$Q.rjvHGQ1eZ0cRfBI.OIR.

menu color title 1;36;44 #ffffffff #00000000 std

LABEL fog.local
localboot 0
MENU DEFAULT
MENU LABEL Boot from hard disk
TEXT HELP
Boot from the local hard drive.
If you are unsure, select this option.
ENDTEXT[/CODE]

as well as the directory output for the tftp file.

[CODE]
root@SCDFOG01:/tftpboot# ls -la
total 260
drwxr-xr-x 5 fog root 4096 Oct 10 15:48 .
drwxr-xr-x 25 root root 4096 Oct 9 06:56 …
-rw-r–r-- 1 fog root 828 Oct 8 15:08 boot.txt
-rw-r–r-- 1 root root 20704 Oct 10 16:20 chain.c32
drwxr-xr-x 5 fog root 4096 Oct 8 15:08 fog
-rw-r–r-- 1 fog root 25340 Oct 8 15:08 memdisk
-rw-r–r-- 1 fog root 26460 Oct 10 16:20 pxelinux.0
drwxr-xr-x 2 fog root 4096 Oct 10 16:48 pxelinux.cfg
drwxr-xr-x 2 fog root 4096 Oct 8 15:08 tftpboot
-rw-r–r-- 1 fog root 155792 Oct 10 16:20 vesamenu.c32
root@SCDFOG01:/tftpboot#
[/CODE]

And for clarification, the menu (as well as things like registering) were working just fine before trying to configure chainloading.