From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Ellerman Subject: Re: "ide=reverse" do we still need this? Date: Wed, 13 Feb 2008 23:16:36 +1100 Message-ID: <1202904996.6974.11.camel@concordia> References: <20080213001506.GA13933@kroah.com> <47B24AB3.3040009@keyaccess.nl> <20080213044436.GB10101@kroah.com> <47B2DD45.7080709@keyaccess.nl> Reply-To: michael@ellerman.id.au Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-GSV2L6sa3QZTlXkXtIBS" Return-path: Received: from ozlabs.org ([203.10.76.45]:59163 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752028AbYBMMQi (ORCPT ); Wed, 13 Feb 2008 07:16:38 -0500 In-Reply-To: <47B2DD45.7080709@keyaccess.nl> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Rene Herman Cc: Greg KH , bzolnier@gmail.com, muli@il.ibm.com, jdmason@kudzu.us, linux-ide@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz, linux-kernel@vger.kernel.org, discuss@x86-64.org --=-GSV2L6sa3QZTlXkXtIBS Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2008-02-13 at 13:06 +0100, Rene Herman wrote: > On 13-02-08 05:44, Greg KH wrote: >=20 > >> While details escape me somewhat again at the monment, a few months ag= o > >> I was playing around with a PCI Promise IDE controller and needed > >> ide=3Dreverse to save me from having to switch disks around to still h= ave > >> a bootable system. > >>=20 > >> Or some such. Not too clear anymore, but I remember it saved the day. > >=20 > > You couldn't just change the boot disk in grub? > >=20 > > Or use an initramfs and /dev/disk/by-id/ to keep any future moves stabl= e? >=20 > No. The thing is that you need these kinds of hacks while messing with ol= d=20 > systems, building and stripping them, often in recovery type of situation= s. >=20 > As said (same as the other person I saw reacting) details of what was mos= t=20 > decidedly needed last time around escape me at the moment, but ide=3Dreve= rse=20 > is the kind of hack that saves one hours of unscrewing computer cases and= =20 > switching disks around while building stuff, making quick tests, doing=20 > recovery... >=20 > If it must go for the greater architectural good, so be it, but it's the=20 > type of thing that's used specifically in the situations where you don't=20 > have stable, well arranged (or known!) setups to begin with. I might be off the deep end, but isn't this what Documentation/feature-removal-schedule.txt is for? cheers --=20 Michael Ellerman OzLabs, IBM Australia Development Lab wwweb: http://michael.ellerman.id.au phone: +61 2 6212 1183 (tie line 70 21183) We do not inherit the earth from our ancestors, we borrow it from our children. - S.M.A.R.T Person --=-GSV2L6sa3QZTlXkXtIBS Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBHst+kdSjSd0sB4dIRAtheAJ9/B8k6pd1scVRvHog5WAywyZHjsACfXnoV I5haLvFUBjf1iqThCYnZYzs= =Hv7S -----END PGP SIGNATURE----- --=-GSV2L6sa3QZTlXkXtIBS--