[syslinux] "so old bootloader ..." with syslinux-3.05 on x86_64

[Richard Plana]

>> I'm trying to install Fedora Core 3 on an AMD 64-based machine using PXE (via DHCP and TFTP). I've managed to get the machine to load the kernel over the network and start booting, but instead of loading the root fs from initrd.img (that I appended as a config via pxelinux.cfg), it loads the pre-existing rootfs on my harddisk.
>> 
>> At the top of dmesg is the message: "so old bootloader that it does not support commandline?!"
> 
>> I'm using pxelinux.0 from syslinux-3.05 I downloaded from sf.net dated Jan 7, 2005.
>> 
>> Any help figuring this out would be appreciated.
>>

>This is the stock FC3 kernel?


Oh ... I just found this in dmesg, as well:

initrd extends beyond end of memory (0xfffffdfb > 0x1fff0000)
disabling initrd

So it might not be bootloader-related, after all. Still don't know what the problem is, though, so any insight would be greatly appreciated, :).
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Richard Plana