I'm trying to compile grub (legacy) so that the nbgrub image, when downloaded and run by Etherboot:
1) by default configures a network adapter and downloads a menu.lst via tftp
and if the tftp download of menu.lst fails
2) attempts to boot the os installed on a local hard drive
If I use nbgrub from a compile using "--enable-diskless" and "--enable-<identifier appropriat for NIC>", the PC I'm using runs Etherboot, downloads nbgrub, and nbgrub downloads menu.lst, all without a problem. (And, as expected, if menu.lst is not available from my tftp server, nbgrub eventually presents a "grub>" command-line prompt.)
If I use nbgrub from a compile using "--enable-diskless", "--enable-<identifier appropriat for NIC>", and "--enable-preset-menu=<FILE>" where <FILE> is
hiddenmenu dhcp --with-configfile default 0 timeout 3
title Local IDE Drive rootnoverify (hd0) chainloader +1 boot
The following are true:
1) when Etherboot downloads and runs nbgrub, networking is configured, but nbgrub just loops, printing the following:
Address: xxx.xxx.xxx.xxx Netmask: xxx.xxx.xxx.xxx Server: xxx.xxx.xxx.xxx Gateway: xxx.xxx.xxx.xxx TFTP error 2 (Access violation) Address: xxx.xxx.xxx.xxx Netmask: xxx.xxx.xxx.xxx Server: xxx.xxx.xxx.xxx Gateway: xxx.xxx.xxx.xxx TFTP error 2 (Access violation) . . . <repeat>
2) if menu.lst is unavailable via tftp, nbgrub responds with "TFTP error 2 (Access violation)", then the timeout timer counts down to zero, and nbgrub boots from the local drive (as I would like it to do)
Am I trying to do something that isn't possible? I spent some time trying to determine what the default preset menu is that's used in nbgrub. Anyone know where/how that is set and what values are used?
Tom Carpenter
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