Sent empty response, sorry...
> On Tue, 4 May 1999, Cary O'Brien wrote:
>
> > I wouldn't give up on a 4MB machine. I've run X, ethernet, and diald on
> > a 4MB laptop (But quickly bought more ram!). For a diald server with
> > all the other stuff turned off this may well be enough. All you need
> > running are inetd, syslogd, a mingetty for 4 virtual consoles, diald and
> > pppd. It might fit. The worst that will happen is it will swap itself
> > to death when you try to connect.
>
> I have run all that stuff on a 4MB machine happily.
>
> One more trick you can use: you don't have to run a getty on the console.
> Just set up ALT-Uparrow to be the KBrequest (it is by default in the
> default keymap) and edit inittab to run open which starts up a getty on
> the next free terminal. When no one is logged in to the console, no
> getty.
>
> Of course, another critical factor is the size of the kernel. Every
> little extraneous bit of code should be stripped out of the kernel.
> You should compile a custom kernel on a big, fast machine and transfer it
> to the router on a floppy disk.
>
I was going to add this to my original message, but I started thinking, if most
thing are kernel modules, isn't the kernel going to start out small and only
put in what is necessary?
I do make custom kernels for bootable floppys, but in a situation where there
is enough disk space (and in this case 100MB should be plenty), would it
really be worth the time to compile a static (i.e. no modules) kernel with
everything turned off, or would simply making sure everything was a module
save the same amount of ram.
Just wondering...
> You might even be able to get by with less than 4MB. You can run some
> benchmarks on another machine to see what your maximum memory requirements
> are for various configurations.
>
Hmm... Isn't there a boot flag to specify max memory?
Here it is ,maxmem. So if you boot with maxmem=4M,
you might be able to check how the system runs.
-- cary
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