Date: Tue, 01 Mar 2005 09:43:56 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: des@des.no Cc: cvs-src@FreeBSD.org Subject: Re: cvs commit: src/release/doc/en_US.ISO8859-1/installation/common install.sgml Message-ID: <20050301.094356.112814615.imp@bsdimp.com> In-Reply-To: <86acpnmzih.fsf@xps.des.no> References: <861xb0ha8r.fsf@xps.des.no> <200502281644.54210.jhb@FreeBSD.org> <86acpnmzih.fsf@xps.des.no>
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In message: <86acpnmzih.fsf@xps.des.no>
des@des.no (Dag-Erling Smørgrav) writes:
: John Baldwin <jhb@FreeBSD.org> writes:
: > How about a custom boot kernel? When I suggested 12MB rather than
: > 7MB in the original PR, I was thinking of the case of building a
: > stripped-down custom kernel. GENERIC certainly isn't going to fit
: > well in 16MB.
:
: A custom kernel should work better. I figured out that the "missing"
: memory is in fact the memory used by the kernel, so a system with a
: trimmed kernel should have a lot more memory available. I'll run some
: more tests...
I've booted a stripped down (but not minimal) kernel with
hw.physmem=10M to single user, but couldn't even get to multi-user
with 16M: Too many processes and too much swapping (I didn't trim my
enabled list on my laptop). If I booted a minimal kernel, and did
some creative trimming, I think I can get down closer to 6M to 8M on a
fairly small system (no acpi, etc), but it would be painful to run in
that environemnt, unless you had special needs (eg, it was an embedded
platform).
Warner
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