From owner-freebsd-questions@FreeBSD.ORG Mon May 12 02:51:52 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 5B2E35FE for ; Mon, 12 May 2014 02:51:52 +0000 (UTC) Received: from icp-osb-irony-out4.external.iinet.net.au (icp-osb-irony-out4.external.iinet.net.au [203.59.1.220]) by mx1.freebsd.org (Postfix) with ESMTP id C7CE32EDB for ; Mon, 12 May 2014 02:51:50 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArQFAKk2cFPLzmuw/2dsb2JhbABZgwaDPakoAQEBAgaaGQGBFhZ0giUBAQQBOj8FCwsNFCUPBRgdARMTiC0DCQfHSAaGJheFVoZlghcHgyuBFQSEWpRthk9Ai3mDSCs X-IronPort-AV: E=Sophos;i="4.97,1032,1389715200"; d="scan'208";a="325555770" Received: from unknown (HELO smtp.phoenix) ([203.206.107.176]) by icp-osb-irony-out4.iinet.net.au with ESMTP; 12 May 2014 10:51:48 +0800 Received: by smtp.phoenix (Postfix, from userid 1001) id 4FFEA91A; Mon, 12 May 2014 12:51:48 +1000 (EST) Date: Mon, 12 May 2014 12:51:48 +1000 From: andrew clarke To: Thomas Mueller Subject: Re: Obscure operating systems Message-ID: <20140512025147.GA24324@ozzmosis.com> References: <1399467508.4488.45.camel@archlinux> <23508.79629.bm@smtp120.sbc.mail.bf1.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <23508.79629.bm@smtp120.sbc.mail.bf1.yahoo.com> User-Agent: Mutt/1.5.23 (2014-03-12) Cc: freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 May 2014 02:51:52 -0000 On Sat 2014-05-10 11:16:25 UTC+0000, Thomas Mueller (mueller6724@bellsouth.net) wrote: > I used OS/2 from 1.3 to Warp 4. Then, after a freeze or crash, > CHKDSK, running automatically on reboot, ran amok and trashed my hard > drive data. I was never again able to boot OS/2 after that, even from > floppies. I later tried eComStation demo CD but was not favorably > impressed. Support for a journaled file system called JFS was added to OS/2 in the late 1990s. There is also read/write support for JFS in the Linux kernel. eComStation has supported booting from JFS for about 10 years now. There are plenty of reasons not to run OS/2 these days, but I don't believe file system corruption has been a real risk since HPFS was superceded. I ran OS/2 2.1 & Warp 3 in the mid '90s and have looked at eComStation briefly. To me, the biggest thing in eComStation that sticks out now compared to modern operating systems is lack of multiuser support in the kernel. Even Microsoft had this in the first versions of Windows NT. In OS/2 & eComStation, you're basically running everything as "root", so there is very little to prevent a rogue program or user error from deleting system files and rendering your system unbootable. There could well be addons to reduce this risk, though. Regards Andrew