From nobody Wed Apr 17 20:10:10 2024 X-Original-To: freebsd-questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4VKX8N1qZYz5H3BK for ; Wed, 17 Apr 2024 20:10:28 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.135]) (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 "Telekom Security ServerID OV Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4VKX8M5X1Xz4MpH for ; Wed, 17 Apr 2024 20:10:27 +0000 (UTC) (envelope-from freebsd@edvax.de) Authentication-Results: mx1.freebsd.org; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=edvax.de; s=s1-ionos; t=1713384621; x=1713989421; i=freebsd@edvax.de; bh=ClYcXVCwM0Dlbt1vY9dOS3usSmStqK7OmCYfbZgozss=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject:Message-Id:In-Reply-To: References:Reply-To:Mime-Version:Content-Type: Content-Transfer-Encoding:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=X06+3Vf3Ko7cOFuusf57IysV43TfM5G5dhk1+A+ZDsyjIeXhlVbvWmdWYF1XK0EG /b0ejy/Dx+5WnlA8E5xJdF57GeaPpIJtt+qS+o0cn3GLJOgK4fqiOqRugQH5iQcfr 3srv94b04MTOIaCoxL4kcDgqRNwa+zM7HzCCIsC36m2qaf5MG78VNSLGB2j+M4Z75 oUh67o9UvWmubqcqDDyKKD9vcBvujuL/EuhKCUFdxoIE6iw/UBh4/viooFBcUMH+X DAMPX1f7G1W6gDqqnSPNHaf4LyZgmLESkmt1i18/YNPgEDOp+kPBp6xUJ9BP+O/wR CzeNe1co7EERnG+miQ== X-UI-Sender-Class: 55c96926-9e95-11ee-ae09-1f7a4046a0f6 Received: from terra.edvax.de ([178.5.227.215]) by mrelayeu.kundenserver.de (mreue009 [213.165.67.97]) with ESMTPSA (Nemesis) id 1Mk0FM-1sPsVp1Lce-00jMT5; Wed, 17 Apr 2024 22:10:21 +0200 Received: from r56.edvax.de (r56 [10.200.1.11]) (authenticated bits=0) by terra.edvax.de (8.17.1/8.17.1) with ESMTPA id 43HKAFTJ015678; Wed, 17 Apr 2024 22:10:15 +0200 (CEST) (envelope-from freebsd@edvax.de) Date: Wed, 17 Apr 2024 22:10:10 +0200 From: Polytropon To: hlyg Cc: freebsd-questions@freebsd.org Subject: Re: how to remove freebsd when it is running Message-Id: <20240417221010.763153b3.freebsd@edvax.de> In-Reply-To: References: Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-questions@freebsd.org Sender: owner-freebsd-questions@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:DhbI267OyCy4FSV3+jKvtbdo0tpP1sP4Z75vpkByUWejGYMx3Ye 2UewfOOJ/HHZ8qOCU0khyNSChdMXjH8+w6lGiXnqCMQP38xe2yLNPc/prk6Y6hJJfDK+oVI yy79Raebv/Ow0g+PBIK2ccWOVgLEDY3e0Zf/4d9Q7k1ddSw6vkJoBdePoekHJ3x9BaRHAAA dqWaoGXjydwFQ5bUbLTIg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:OpTaqUQdxsA=;Qrjm+1QDnI8eDXqyvt6B9lFZRnT XULRpyZAorU4zDedoG0klmTga5jVPHAG9htpzrjc+fKUTEaLBMn8n8KeDoSotPOt8OIJIww8z 1Zxrln+OOIIwgn8JBRQHinJRJX/kks5v0xyNV4Gj6/Uhg/Ta6YlUsUuBWIoDYdcU2DNgNG2HC i9WIPXtLbaESenbsCYY/GEbGY4PL+6KTDnTt6qKx8T1Er4d5LD93Pazs7GYZo/09nLpsNuItb mNmsYNhdcdc4wCYRt16HU+SutcDP5g4T5+Pu5IWsuyPexkN9k+VRmaR0P/ytARKnmypBqHelw 57dxDYVteqPqGQorlRzIdOTtPIwPfSqfhqgDZsQ4ah+h7kmnJWSbqSjYYEQafe+nAis8zdPU6 bpx8PNIblElQlWqlY1+Eev8Suxo6veRs1s3+WSioVHgdGEYkjtVMMmVBEStJ9H0J2dHOfTRHX sznvQQTkMzz4llywK2w3LDxaBF15ORuWixSqv3m2az0iTW6lrF9tj7xl6n5Ko2GKwSwJwheBy pfvygR5T4vwW3UGOdnQsuB+RAK06npdHrkc52/c7tJQbqkUwLprxJS7g8t7O3pU8wGS3BvI6A wc0926mO89FUwYF9Z6AQcoSN+u39nuKRaVtPB7nPJPNKFQ83VLysr2vwaepoNsF1dBxT3s560 Y2gOpY8Fn7z1CQd8SJS1SiISEBffBvXS7mHmdirv5v5gKeTN0nZ2PN+EsF5FvkQIrk6xcIYQQ f9YooWMGEVbargxehYr75rO85qQy6hNw2BDQY5M/y3YA9JHDG7hvVQ= X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:8560, ipnet:212.227.0.0/16, country:DE] X-Rspamd-Queue-Id: 4VKX8M5X1Xz4MpH On Wed, 17 Apr 2024 22:21:15 +0800, hlyg wrote: > my freebsd 13 is installed at flash disk of dell thin client >=20 > it doesn't work well, i want to remove it >=20 > "dd if=3D/dev/zero of=3D/dev/ada0 count=3D1000 ..." doesn't work, freebsd= =20 > doesn't allow This is intended, because you cannot write to a disk currently in use by the OS. > according to dell manual, i shall be able to enter bios by pressing F2=20 > before bsd booting so that i can set boot sequence=A0 to boot from usb=20 > disk, but i can't enter bios, pressing F2 doesn't work Reboot the system with a FreeBSD live system from USB stick and then use the dd command to remove the FreeBSD installation. But instead of removing it, why not use the installer of the new OS you want to install to your Dell thin client to first remove the existing partition(s), then install the new OS? That approach should be much easier. > it's not easy for me to open case and dismount disk That surely isn't needed. --=20 Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...