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Assuming your kernel source tree has been decompressed properly, and you created the correct symbolic link. Change to the new source directory.
cd /usr/src/linux
Clean the source tree. ( make clean )
Dig into the menuconfig for the kernel. ( make menuconfig ) The following kernel options must be set in order to boot your kernel over etherboot.
Under “Networking –> Networking options” :

[*] TCP/IP networking
[*] 	IP: kernel level autoconfiguration
[*] 		IP: DHCP support
[*] 		IP: BOOTP support

Under “File systems” : [*] Second extended fs support [ ] Ext2 extended attributes [ ] Ext2 execute in place support [*] Ext3 journalling file system support [*] Ext3 extended attributes [ ] Ext3 POSIX Access Control Lists [ ] Ext3 Security Labels

Under “File systems –> Network File Systems” :

[*] NFS file system support
[*] 	Provide NFSv3 client support
[*] Root file system on NFS

The above options are not the only thing you will need to get your nodes up and booting.

make modules_install

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