On Fri, 26 Aug 2016, Andrew Lunn wrote:
- the factory layout gives you almost no space to play with
Given that the kernel has grown in size over the years, does the
mainline kernel fit in the factory layout?
The factory layout has a 6MB JFFS2 for root & uImage (uboot mounts it
by default) + 1MB miscellany. So the main restriction on kernel size is
the size of your userland.
The non-DT mainline layout is 1MB JFFS2 for uImage + 7MB rootfs. Which is
a closer approximation to other devices with a uImage in it's own
partition.
Of course, one could also argue I'm breaking backwards compatibility
at this point by changing it, so maybe I should put it back.
I don't mind breaking backwards compatibility, if the factory defaults
no longer actually work.....
Also, lets think about the users here. This is a very old box. Anybody
playing with one are probably of the sort who tinker with a classic
car in the garage, taking the engine apart and putting it back
together again. I doubt there are users of this box who take their car
in for a service once they are out of windscreen washing water.
My line of thinking was that the only people that will see this default
partition scheme are people that have just compiled a mainline kernel and
booted it to see what happens. At which point you probably still have the
Netgear image in Flash. If you had OpenWRT in Flash then in all likelihood
you'd already be using an OpenWRT kernel too, with it's own flash layout.
Finally, you could have rolled your own userland and put that on Flash,
but by then you should know enough to do what you like :)
Andrew
--
Jamie Lentin
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