From owner-freebsd-geom@freebsd.org Mon Dec 9 16:22:22 2019 Return-Path: Delivered-To: freebsd-geom@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 14A9F1DA479 for ; Mon, 9 Dec 2019 16:22:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 47WpPT6v6nz3K7M for ; Mon, 9 Dec 2019 16:22:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id EC9D91DA478; Mon, 9 Dec 2019 16:22:21 +0000 (UTC) Delivered-To: geom@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 EC6291DA477 for ; Mon, 9 Dec 2019 16:22:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47WpPT63Cjz3K7L for ; Mon, 9 Dec 2019 16:22:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CB04A1D437 for ; Mon, 9 Dec 2019 16:22:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id xB9GMLtN051307 for ; Mon, 9 Dec 2019 16:22:21 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id xB9GMLHV051295 for geom@FreeBSD.org; Mon, 9 Dec 2019 16:22:21 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: geom@FreeBSD.org Subject: [Bug 242341] GEOM / GEOM_PART: silent discard MBR modification Date: Mon, 09 Dec 2019 16:22:21 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: tomek@cedro.info X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: geom@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Dec 2019 16:22:22 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D242341 --- Comment #8 from Tomasz "CeDeROM" CEDRO --- Okay, I am using this pendrive already with some data on it, and I don't ha= ve the other one anymore. That was supposed a quick swap and it failed with a surprise. Will try to recreate that situation logs with script / tee / hexdump as requiested and report back.. probably I will have to buy another one or will use some SD card if I have one.. maybe first sectors would be enough :-) I was also surprised after dd if=3D/dev/da0 of=3D/dev/da1 put data on a pen= drive but no MBR. I tell you :-) :-) ps/2: Do you know https://asciinema.org/ is it okay for documenting stuff? = :-) --=20 You are receiving this mail because: You are the assignee for the bug.=