It took quite a bit of looking around for me to figure this out. Posting
this question to this list is why I joined this group, and asking here was
fruitless. After many hours of searching finding little to no information, I
finally resolved it by trial and error.
To boot your nbd images from another server is very simple and only requires
changes to the kernel command line parameters. simply add "nbdroot=<ip
address of nbd server>", e.g.
label ltsp
menu label LTSP Client
kernel /ltsp/vmlinuz
append ro initrd=/ltsp/initrd.img quiet splash nbdroot=10.1.1.3
You can specify more than one image on a server by adding a port number,
e.g.
label ltsp
menu label LTSP Client
kernel /ltsp/vmlinuz
append ro initrd=/ltsp/initrd.img quiet splash nbdroot=10.1.1.3:2001
--OR (can't remember if this one works, sorry. no time to test for you)--
label ltsp
menu label LTSP Client
kernel /ltsp/vmlinuz
append ro initrd=/ltsp/initrd.img quiet splash nbdroot=10.1.1.3
nbdport=2001
Of course you'll also have to specify which port the nbd image is to use in
your inetd config, or while building the image (specify on the command
line.)
To do the same for NFS is well documentes on the internet. There are 2
parameters required.
Use "netboot=nfs nfsroot=<ip address of nfs server>:/<path to root
filesystem>", e.g.
label ltsp
menu label LTSP Client
kernel /ltsp/vmlinuz
append ro initrd=/ltsp/initrd.img quiet splash netroot=nfs
nfsroot=10.1.1.1:/opt/ltsp/i386
These parameters work on LTSP kernels generated with ubuntu and debian
installations. I think I have seen some kernels of other distros use
different option parameters for nfs, but no testing was done to determine if
the info was accurate. This information *may* only apply to those distros
and their spawn.
Hope this helps,
Regards,
Dave Bukove
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