From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phillip Susi Subject: Re: SATA disks disabled on boot Date: Tue, 03 Feb 2015 14:45:28 -0500 Message-ID: <54D12558.6000805@ubuntu.com> References: <20140714163641.GF31610@htj.dyndns.org> <20140817133942.GD7679@mtj.dyndns.org> <20141202195653.GQ10918@htj.dyndns.org> <547E4817.8000603@eu.ipp.pt> <20141204174819.GC2995@htj.dyndns.org> <5480F54B.9070306@ubuntu.com> <54822DD3.6040405@eu.ipp.pt> <54C8ECA2.3020705@ubuntu.com> <54CB8CC6.5040801@ubuntu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-qa0-f46.google.com ([209.85.216.46]:43082 "EHLO mail-qa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161045AbbBCTqJ (ORCPT ); Tue, 3 Feb 2015 14:46:09 -0500 Received: by mail-qa0-f46.google.com with SMTP id j7so35439747qaq.5 for ; Tue, 03 Feb 2015 11:46:09 -0800 (PST) In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: =?UTF-8?B?TnVubyBNYWdhbGjDo2Vz?= Cc: Tejun Heo , linux-ide@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2/3/2015 2:32 PM, Nuno Magalh=C3=A3es wrote: > The BIOS shows the regular Primary/Secondary IDE Master/Slave (to=20 > which only the CDROM is attached) alongside SATA. It doesn't seem > like SATA is the option, bu rather that both IDE and SATA are seen > as current usable interfaces (at the time the BIOS was released: > 2010). It does have NVRAID, which is disabled (i use mdadm). Typically there is a knob that toggles between three states: IDE, AHCI, and RAID. RAID really is AHCI just with a different PCI identifier that causes windows to load their proprietary driver that does the software raid. If you only have an on/off switch for the raid, then try switching it on. > There is no mention of AHCI that i could find. >=20 > Regardless, as long as linux sees the HDDs on boot (which it does > even with PUIS), does the BIOS have any influence in this issue? Only in that it is configuring the controller to behave like a legacy IDE controller instead of a proper SATA one, and that does cause some differences in how the kernel handles the drives. It *shouldn't* cause the problem you are seeing, but it does prevent the system from issuing a hard reset to the drives, which *may* cause them to come arou= nd. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) iQEcBAEBAgAGBQJU0SVYAAoJENRVrw2cjl5R984H/Rr/xSVa7x8az1kq0v+bUp1D tIU1gWBRumBMcTGgkHYiePLdr9OFRK867N23UrxG14PbbmiJymr4hi4DbaCqWUYc MzatgvehwK4Y3Lm2Wi3uO27On1O6nior8yPr4i7d/bWWAYC7csX9y522Pbv0hJvx gpZTHarFeU0bXhqKKm9NGvaJuFmwvZosw7dF3pVK01S8crNtYoxX/iLLown2H8PJ OTiIfnZKQwlxwh4DM6v17QQRzesQH8nwZ3PoWysE0WVdcH7bbDRQTn+kIByk4ihD UdtYE1OybaTpIhdzQFTEw6pDS+BVIcu3yqLqrMFzUyiZU9jwwtTpMC4/g2zY31I=3D =3Dbxbp -----END PGP SIGNATURE-----