From owner-freebsd-hackers@freebsd.org Fri Nov 30 20:32:54 2018 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 17AF8114FBB4 for ; Fri, 30 Nov 2018 20:32:54 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 893317697A for ; Fri, 30 Nov 2018 20:32:53 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: by mailman.ysv.freebsd.org (Postfix) id 4C37A114FBAE; Fri, 30 Nov 2018 20:32:53 +0000 (UTC) Delivered-To: hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3A79F114FBAD for ; Fri, 30 Nov 2018 20:32:53 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [IPv6:2a01:4f8:d12:604::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 32A777696A for ; Fri, 30 Nov 2018 20:32:41 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (eg.sd.rdtc.ru [IPv6:2a03:3100:c:13:0:0:0:5]) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id wAUKWTFU029746 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Nov 2018 21:32:30 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: ish@amail.plala.or.jp Received: from [10.58.0.4] ([10.58.0.4]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTPS id wAUKWSX0006207 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Sat, 1 Dec 2018 03:32:28 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: How to use trim command ? To: Masachika ISHIZUKA , hackers@freebsd.org References: <20181201.011411.2100982142219259108.ish@amail.plala.or.jp> From: Eugene Grosbein Message-ID: <7e69211c-6ffb-6155-b17a-a845c0b3586d@grosbein.net> Date: Sat, 1 Dec 2018 03:32:17 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <20181201.011411.2100982142219259108.ish@amail.plala.or.jp> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=0.3 required=5.0 tests=BAYES_00,LOCAL_FROM,SPF_PASS autolearn=no autolearn_force=no version=3.4.2 X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 SPF_PASS SPF: sender matches SPF record * 2.6 LOCAL_FROM From my domains X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on hz.grosbein.net X-Rspamd-Queue-Id: 893317697A X-Spamd-Result: default: False [-5.25 / 15.00]; ARC_NA(0.00)[]; FORGED_RECIPIENTS_FORWARDING(0.00)[]; RCVD_COUNT_FIVE(0.00)[6]; MX_INVALID(0.50)[cached]; FROM_HAS_DN(0.00)[]; FORWARDED(0.00)[hackers@mailman.ysv.freebsd.org]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[grosbein.net]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; IP_SCORE(-3.61)[ip: (-9.87), ipnet: 2001:1900:2254::/48(-4.64), asn: 10310(-3.43), country: US(-0.09)]; R_SPF_PERMFAIL(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_MED(-0.20)[5.0.0.0.0.5.0.0.0.0.0.0.0.0.0.0.a.6.0.2.4.5.2.2.0.0.9.1.1.0.0.2.list.dnswl.org : 127.0.9.2]; NEURAL_HAM_SHORT(-0.94)[-0.941,0]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:10310, ipnet:2001:1900:2254::/48, country:US]; FORGED_RECIPIENTS(0.00)[ish@amail.plala.or.jp ..,freebsd-hackers@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Nov 2018 20:32:54 -0000 30.11.2018 23:14, Masachika ISHIZUKA wrote: > I'm using FreeBSD 13.0-CURRENT r341327. > I want to use trim command. > > # trim /dev/gpt/fbroot-current > trim `/dev/gpt/fbroot-current' offset 0 length 60568829952 > dry run: add -f to actually perform the operation > # trim -f /dev/gpt/fbroot-current > trim `/dev/gpt/fbroot-current' offset 0 length 60568829952 > trim: `/dev/gpt/fbroot-current': Operation not permitted > carrot# echo $status > 66 > > How can I use /usr/sbin/trim command ? It seems this partition is in use (mounted?) and GEOM won't allow to write to opened partition, you need to close it first (unmount). Be warned: trim will destroy all data in the partition.