From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 399561382C5 for ; Fri, 12 Mar 2021 00:33:33 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 092CCE09DE; Fri, 12 Mar 2021 00:33:27 +0000 (UTC) Received: from smtp.hosts.co.uk (smtp.hosts.co.uk [85.233.160.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 83EF7E09D9 for ; Fri, 12 Mar 2021 00:33:26 +0000 (UTC) Received: from host86-155-154-65.range86-155.btcentralplus.com ([86.155.154.65] helo=[192.168.1.65]) by smtp.hosts.co.uk with esmtpa (Exim) (envelope-from ) id 1lKVk1-0009EY-Bq for gentoo-user@lists.gentoo.org; Fri, 12 Mar 2021 00:33:21 +0000 Subject: Re: [gentoo-user] Weird harddisk problem: AHCI disks sometimes not found To: gentoo-user@lists.gentoo.org References: <4230296.kQq0lBPeGt@zeus> From: antlists Message-ID: Date: Fri, 12 Mar 2021 00:33:20 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 In-Reply-To: <4230296.kQq0lBPeGt@zeus> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit X-Archives-Salt: a9f57530-7d79-477d-a742-9ab3bd067aaf X-Archives-Hash: 8002775afe7bd30f1791ddd5be8a4d66 On 11/03/2021 19:39, Alexander Puchmayr wrote: > Only one of the two SSDs is attached at the same time to the system, the other > one is disconnected. One contains a gentoo installation (just updated > yesterday), the other one an Ubuntu LTS 20.04. This allows dual-.boot by > switching connection cables. By switching cables. Is that moving the cables from one drive to the other? Or by disconnecting one drive from the mobo, and plugging in the other? Or what? A pretty recent mobo I've got says that certain ports are incompatible, so for example if I plug in a video card, certain sata ports disappear, or if I use NVMe, something else goes ... Could it be you have a collision like that, if your two SSDs don't end up plugged into the exact same SATA port (or whatever it is). Cheers, Wol