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SubjectRe: Aunt Tillie builds a kernel (was Re: ISA hardware discovery -- the elegant solution)
Eric S. Raymond <esr@thyrsus.com> wrote:
> arjan@fenrus.demon.nl <arjan@fenrus.demon.nl>:
> > Of course there are other settings that do have impact (CPU type mostly,
> > maybe memory layout) but other than that... distros already ship several
> > binary versions (last I counted Red Hat ships 11 or so with RHL72) to
> > account for CPU type and amount etc.
>
> OK. Scenario #2:

Hmm. This scenario seems totally bogus.

[...]
> Some time back he set up a Linux box for Joe Foonly over at Joe's
> Garage. Joe calls him back and says "Hey, kid, I gotta problem here.
> Lot of hits on that website and the machine's getting sluggish when
> I'm doing my books with GnuCash on it at the same time.
[...]
> the box is
> an older machine, a 586-based PCI/ISA hybrid from around 1995, and
> only has 32MiB of memory in it.
[...]

Hmmm, 32MiB of RAM on a 586-class machine, and its doing useful work as both a
webserver and running GnuCash? Care to construct something more real-world?

Even at that:

> Melvin thinks this is no problem, he'll start by building a new kernel
> with some stuff trimmed out to leave more RAM for userspace. But...
> uh oh! He nuked that source tree because free disk was getting kind
> of tight, and the .config went with it. Looks like Melvin's going to
> have to reconstruct his configuration by hand.
>
> "Crap." Melvin thinks. "I don't remember what kind of network card I
> compiled in. Am I going to have to open this puppy up just to eyeball
> the hardware?"

Uh, no. Try `lsmod`.

> Autoconfigure saves the day.

Autoconfigure not necessary; read the output of lsmod, or read modules.conf.
Problem solved.

Charles
--
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Charles Cazabon <linux@discworld.dyndns.org>
GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/
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