From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 3A7801384B4 for ; Sat, 19 Dec 2015 14:49:04 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id EF93121C06B; Sat, 19 Dec 2015 14:48:55 +0000 (UTC) Received: from mail0200.smtp25.com (mail0200.smtp25.com [174.37.170.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id CDEF821C063 for ; Sat, 19 Dec 2015 14:48:54 +0000 (UTC) Received: from ccs.covici.com (localhost [127.0.0.1]) by ccs.covici.com (8.14.9/8.14.8) with ESMTP id tBJEmqnN020045 for ; Sat, 19 Dec 2015 09:48:52 -0500 From: covici@ccs.covici.com To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Hard drive noise In-reply-to: References: <56749E6B.1020800@gmail.com> <5674A782.2040008@iinet.net.au> <5674A980.7060803@gmail.com> <6509.1450511771@ccs.covici.com> Comments: In-reply-to Rich Freeman message dated "Sat, 19 Dec 2015 08:11:39 -0500." X-Mailer: MH-E 8.5; nmh 1.6; GNU Emacs 23.4.1 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 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <20042.1450536532.1@ccs.covici.com> Content-Transfer-Encoding: quoted-printable Date: Sat, 19 Dec 2015 09:48:52 -0500 Message-ID: <20044.1450536532@ccs.covici.com> X-SpamH-OriginatingIP: 70.109.53.110 X-SpamH-Filter: s-out-001.smtp25.com-tBJEmqRC028230 X-Archives-Salt: 952f367e-fe15-4d97-94f1-aa00677542a0 X-Archives-Hash: cb6696ede8b00c0226d0275d660afd90 Rich Freeman wrote: > On Sat, Dec 19, 2015 at 2:56 AM, wrote: > > > > I was never able to get either zfs or btrfs to work correctly, zfs was > > very vulnerable -- I forgot to export a zfs on a usb drive and got an > > enless loop of processes untill I rebooted. Btrfs never did work for > > me, I created a pool, copied my root file system, usr and var into > > ssubvolumes, and copied my files, but when I would boot into it, > > everything was messed up, processes thought files were missing, very > > strange. So, how did you set up either one of those -- I would love t= o > > use it because I have ssds and I don't want to rely on their firmware > > either. > = > Well, I don't have much personal experience with zfs, but the ZFS on > Linux lead is a Gentoo dev, so you're in good company there all the > same. I personally use btrfs. > = > The obvious caveat is that it is still relatively experimental, and > raid5/6 is VERY experimental. I plan to convert to raid5/6 at a > future date but am staying away from it for now (and a selling point > of btrfs is that reshaping in-place is easy). > = > I can't really vouch for what went wrong with your migration. It > could be anything from a failure to preserve all your file attributes > to something with btrfs itself or your bootloader config/etc. It > isn't hard to do a new install in btrfs though, and you can always > mess with it in a VM, or even mess with doing migrations in a VM. > = > My btrfs install notes are at: > https://docs.google.com/document/d/1VJlJyYLTZScta9a81xgKOIBjYsG3_VfxxmUS= xG23Uxg/edit?usp=3Dsharing > (I still plan to merge this stuff into the handbook. Maybe a good > holiday project... Oh, and if it isn't already obvious anybody can > add comments and half this list seems to have already done so.) > = > Oh, for a boot image I tend to use system rescue CD since it has all > the necessary userspace and is gentoo-based (and you can always emerge > --sync and install whatever you need inside it). I tend to use the > alternate kernel since it is newer, and with btrfs newer tends to be > better. In production I'm currently on 3.18 eyeing an upgrade to 4.1. > I tend to stay on the latest longterm, but not when they are first > declared as longterm. That seems to be the sweet spot for getting > btrfs features and bugfixes, but not getting as many of the > regressions. I use grub2/dracut to boot, and that is in my guide. > = > If you follow those notes for a stage3 install it should "just work." > If you want to mess around I suggest just doing a vanilla install on a > VM once to validate that it works for you and then tweak from a > position of strength. Thanks. I will check out your notes and figure out something -- it was definitely strange. I have a vm I can play with -- its older, but I can bring it up to date and see what happens. Thanks again. -- = Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici covici@ccs.covici.com