From owner-freebsd-questions@freebsd.org Sat Feb 15 23:17:14 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 18F1B24C242 for ; Sat, 15 Feb 2020 23:17:14 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) Received: from holgerdanske.com (holgerdanske.com [184.105.128.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "holgerdanske.com", Issuer "holgerdanske.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 48KmNn3NCPz4MjP for ; Sat, 15 Feb 2020 23:17:13 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) Received: from 99.100.19.101 ([99.100.19.101]) by holgerdanske.com with ESMTPSA (ECDHE-RSA-AES128-GCM-SHA256:TLSv1.2:Kx=ECDH:Au=RSA:Enc=AESGCM(128):Mac=AEAD) (SMTP-AUTH username dpchrist@holgerdanske.com, mechanism PLAIN) for ; Sat, 15 Feb 2020 15:17:10 -0800 Subject: Re: some questions about disk partitioning and filesystems and booting To: freebsd-questions@freebsd.org References: <20200213150229.GC14144@bastion.zyxst.net> <091dd3af-7b99-267f-7d04-541b6d651926@holgerdanske.com> From: David Christensen Message-ID: <65b3d4f9-a98f-1c07-1c9e-511b302eeef4@holgerdanske.com> Date: Sat, 15 Feb 2020 15:17:06 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 48KmNn3NCPz4MjP X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of dpchrist@holgerdanske.com has no SPF policy when checking 184.105.128.27) smtp.mailfrom=dpchrist@holgerdanske.com X-Spamd-Result: default: False [-1.62 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-0.92)[-0.923,0]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; IP_SCORE(-0.60)[ipnet: 184.104.0.0/15(0.66), asn: 6939(-3.58), country: US(-0.05)]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; TO_DN_NONE(0.00)[]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; DMARC_NA(0.00)[holgerdanske.com]; RCVD_IN_DNSWL_NONE(0.00)[27.128.105.184.list.dnswl.org : 127.0.10.0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:6939, ipnet:184.104.0.0/15, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Feb 2020 23:17:14 -0000 On 2020-02-14 22:50, Dewayne Geraghty wrote: > In regard to running without swap and crashing, you may have overlooked > setting: > vm.swap_enabled=0 > vm.nswapdev=0 > (taken from a system without swap that's been running for a few years) > > My use of swap, like you, is limited to wanting a mini kernel dump, and > using swap space for memory devices (mdconfig). Though I do have swap > on another disk when I really need all of memory to be dumped, which has > been about once in 10 years ;) Thanks for the pointer. I will keep that in mind if/when I want to run a FreeBSD system without swap. David