Anselm Martin Hoffmeister a écrit :
Am Sonntag, den 05.03.2006, 22:41 +0100 schrieb Richard Bos:
Just wondering whether something like wireless pxe exists? I know that
something like a Wireless Access Point + Ethernet Adapter exists:
http://www.asus.com/products.aspx?l1=12&l2=41&l3=0&model=59&modelmenu=1
But this is not the same as say native pxe functionality for a wireless card.
I can imagine that e.g. configuring the wireless encryption key might be a
problem for wireless pxe, but this could be stored in the bios (if
supported). It would be nice to hear why e.g. pxe via a wireless card is not
possible (and might never be possible). (Or: why is pxe via a fixed ethernet
connection possible and is it not possible via a wireless card).
I do not know of any wireless NIC that supports booting: There seems to
be no PXE driver for any wireless chipset at all.
In theory, booting via wireless differs from "wired ethernet" booting in
two (additional) steps: The selection of the correct wireless network
(choosing the strongest signal is not a reasonable option in my opinion)
and the setup of encription (support of only unencrypted wireless is a
real stupid idea). Having a look at the typical 3com MBA which features
some kind of setup screen and stores several bytes worth of
configuration data, it should be feasible to configure a computer for
wireless booting in a sensible way. Just there was noone yet to write
the appropriate PXE driver or etherboot module.
Alas, no wireless booting.
Using a D-Link AirPlus G (DWL-G730/AP), I've been able to connect a thin
client to a LTSP server (goal: connect a remote classroom to the main
school network). The thin client is a recycled desktop with a standard
PXE board (nothing else: direct bios boot from the board). It's a bit
slow to boot (around 2 minutes to load Linux), and screen refresh
is sometimes erratic. But it works. Forget sound/video streaming. One of
these days, I'm going to check if I can get better results with NX
(compressed screen updates should give better results).
Pierre
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