From owner-freebsd-questions@freebsd.org Thu Aug 20 17:15:21 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 5B4243C3616 for ; Thu, 20 Aug 2020 17:15:21 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.130]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "mout.kundenserver.de", Issuer "TeleSec ServerPass Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BXWVv715qz3SPm for ; Thu, 20 Aug 2020 17:15:19 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r56.edvax.de ([94.222.20.202]) by mrelayeu.kundenserver.de (mreue011 [212.227.15.167]) with ESMTPA (Nemesis) id 1MhlbM-1kdU8O2zB2-00dq3T; Thu, 20 Aug 2020 19:15:04 +0200 Date: Thu, 20 Aug 2020 19:15:03 +0200 From: Polytropon To: freebsd@dreamchaser.org Cc: freebsd-questions@freebsd.org, Manish Jain , Christoph Kukulies Subject: Re: Correct way to disconnect/eject an USB hard disk ? Message-Id: <20200820191503.8abbe633.freebsd@edvax.de> In-Reply-To: References: <20200819142952.3686baa8.freebsd@edvax.de> <20200820044352.678a588e.freebsd@edvax.de> <20200820050222.e54467e3.freebsd@edvax.de> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:FW+TwYCNr7avHRYgPAnUh69iG1PB//MjCIOMDuFdwhGdfKJO0BC U0Y+uaeVdkaRGPVf0NJPnxgOVO5Q0c7SEnkIx1v3Q1nTkuGJVdzak6BrewMnuftTsEaMoEU OYopYH55syOz1QL8d7NSETxXm1xKrWLuKwQS5mwYkTJe2S3vSgIpa7zqEtDCxvbyt3/KUfC ONL0HFkcJGID/g+y1UhLg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:L3zKGNKJooA=:i35jVaMigNKQri5GOdPLsd 441hEPXti7CKQBcn4nedgQD2biCibXmZ+aWiLGFc3w5cWmYMDCeZO2EZzpV82M1AChACz8VY6 DAuCHnuwXeSoRuzTX3CZytTcdJXpjhVy16enaTtvcYaUspVn7Yrm4FbKkpQAdFnUq0kTYxLxI XClwiJX/KAt2S3sdWNjLbYqkwzk3BqDdxGwm6IlQ8b478gZoayn1ZRiilGXtUWyie8PWdnk9A XStq3xVuc/NAiuzl3g9ADzc2d0qNpM9kA9xH6zft7AZL4CFPy2OquryVuoCVNbr1eEVzutZOi UV3i59lJQVf8bBb2DYuZZktusUuDQK/uZeDyNdR+0nUJqx3HDSoyilWIpWID3x9tKqLvJ+jox 8t7imRC4iF7kzscYJi3vw1cJJxWqQp8t3LCBnWOVu/PalVjuGMDHHrcyEJXvR4zBqpC82vaxf LXsI6ZeNbvcA228KPW8HMXnJft+FRCeubuyN+FyrralGiJOL6sXFozpvJQKYgQRVmTJLASWaN 3x9FEo9/Z89wojTxgfnjQREHa+yk+0p2UjVsP5q/5EsFDi6vOKvVFEpg+DZBDY3OmOR9tOm6G xEeD+7N6Pdm3ER92FcCOh7xR1jKG9BbLHl6RBf9uRPtBmoNoeVjtlJg8eD1159uzHy3mtzet/ gu7cseun14ieX2sKzzG1goyipzFVhlNLEFP+tejoR+hxGWnVVuRCw6OTPFYaqIGW35/VzFDt+ lAgWsaCyzvziNeyV8tWbgg33FqXXAm55cLX4yKZu1rEbMQSoFMAyEo85HE4KYbv7gZ98xWtjo E8+wYbECqKdV5SeKf+0FlJxjSgCFZQ8Y/4iBSqBd2fFa9+uxBThUtxZTuPrpX89DdPZsDbz X-Rspamd-Queue-Id: 4BXWVv715qz3SPm X-Spamd-Bar: +++ Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of freebsd@edvax.de has no SPF policy when checking 212.227.126.130) smtp.mailfrom=freebsd@edvax.de X-Spamd-Result: default: False [3.61 / 15.00]; HAS_REPLYTO(0.00)[freebsd@edvax.de]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; HAS_ORG_HEADER(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:8560, ipnet:212.227.0.0/16, country:DE]; MIME_TRACE(0.00)[0:+]; RECEIVED_SPAMHAUS_PBL(0.00)[94.222.20.202:received]; ARC_NA(0.00)[]; REPLYTO_EQ_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; NEURAL_SPAM_SHORT(0.09)[0.090]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[edvax.de]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.12)[0.119]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MID_CONTAINS_FROM(1.00)[]; RCVD_IN_DNSWL_NONE(0.00)[212.227.126.130:from]; RCVD_TLS_LAST(0.00)[]; R_SPF_NA(0.00)[no SPF record]; RWL_MAILSPIKE_POSSIBLE(0.00)[212.227.126.130:from]; FREEMAIL_CC(0.00)[freebsd.org,hotmail.com,kukulies.org]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-questions] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Aug 2020 17:15:21 -0000 On Thu, 20 Aug 2020 10:56:56 -0600, Gary Aitken wrote: > But on a mostly unrelated note, I have a ritual I've been performing for = nigh > on ten years: >=20 > Before plugging in a USB stick on one particular box, I stick a finger ov= er the > USB stick connection, touch the box/case and run my finger down to the fr= ont > panel USB connector and wiggle my fingertip over the connector. Then plu= g in > the stick. If I don't do that, 9 times out of 10 the machine will freeze= up > and I have to manually power off, reboot, and fsck. I had a comparable problem many years ago with a USB-based SD and CF card reader: It was required to first plug in the USB-A plug to the computer, then the card reader to the USB-mini-B plug of the cable - worked. If the reader was connected to the cable already, and it was plugged into the computer, the system would freeze. That was very strange, so I left the USB cable connected to the system, and only connected the card reader when needed. There is another important ritual: First try to connect the USB-A plug. You'll immediately recognize that it was upside down. So you turn it 180=B0 and retry. Again it does not fit, so you turn it 180=B0 again and retry. It will now fit. :-) It might apply to all kinds of USB plugs (and in case of USB-B, it needs 4 x 90=B0 turns to make it fit... --=20 Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...