From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Evans Subject: Re: Linux mdadm superblock question. Date: Sat, 13 Feb 2010 20:02:30 -0800 Message-ID: <4877c76c1002132002s20d942c3i7cee5418cdcf369c@mail.gmail.com> References: <201002140251.59668.volkerarmin@googlemail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <201002140251.59668.volkerarmin@googlemail.com> Sender: linux-raid-owner@vger.kernel.org To: Volker Armin Hemmann Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org List-Id: linux-raid.ids On Sat, Feb 13, 2010 at 5:51 PM, Volker Armin Hemmann wrote: >>0.90 has a very bad problem, which is that it is hard to distinguish >>between a RAID partition at the end of volume and a full RAID device. >>This is because 0.90 doesn't actually tell you the start of the devic= e. >> >>Then, of course, there are a lot of limitations on size, number of >>devices, and so on in 0.90. > > but it is the only format supporting autodetection. > > So - when will autodetection be introduced with 1.X? And if not, why = not? > > All I found was 'autodetection might be troublesome' and nothing else= =2E > =A0But dealing with initrds is troublesome too. Pure evil even. > > Gl=FCck Auf, > Volker > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid"= in > the body of a message to majordomo@vger.kernel.org > More majordomo info at =A0http://vger.kernel.org/majordomo-info.html > I remember hearing that 1.x had /no/ plans for kernel level auto-detection ever. That can be accomplished in early-userspace leaving the code in the kernel much less complex, and therefore far more reliable. In other words, 'auto-detection' for 1.x format devices is using an initrd/initramfs. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html