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Mathias Weigt wrote:
| I have to setup such a (little) cluster as well and I am very interested
| in a good documented Gentoo-based procedure.

I set up an NFS-root, PXE-boot cluster about a year ago. I can try to
put my notes together into something usable as a doc, if you'd like.

The basic idea I used was to maintain a couple of ROOT=/foo environments
on the master server: one for the NFS root, and one smaller one with
just busybox and a kernel to create an initrd for each node.

The ROOT approach is far superior to what's promoted in the NFS root
Gentoo doc, because it allows for a maintainable and differentiated node
system rather than just copying straight from the master's root fs.

I then booted to the kernel+initrd with an interesting setup:
PXE-capable Etherboot on a floppy in each node (required a development
version of Etherboot at the time), because I didn't have PXE-capable
Ethernet cards, launched pxelinux on the server (part of isolinux),
which served as a HW-address-specific bootloader so it was possible to
have different roles for nodes. With a little symlinking I was able to
just have one pxelinux config file per role.

Thanks,
Donnie
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