From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,NICE_REPLY_A,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 26151 invoked from network); 21 Jul 2020 17:51:03 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 21 Jul 2020 17:51:03 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id CD98B9C8E5; Wed, 22 Jul 2020 03:51:00 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 0251F9C8DD; Wed, 22 Jul 2020 03:49:48 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (1024-bit key; secure) header.d=tnetconsulting.net header.i=@tnetconsulting.net header.b="kOAutRvP"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 6EAF09C8DD; Wed, 22 Jul 2020 03:49:45 +1000 (AEST) Received: from tncsrv06.tnetconsulting.net (tncsrv06.tnetconsulting.net [45.33.28.24]) by minnie.tuhs.org (Postfix) with ESMTPS id AA15593D09 for ; Wed, 22 Jul 2020 03:49:44 +1000 (AEST) Received: from Contact-TNet-Consulting-Abuse-for-assistance by tncsrv06.tnetconsulting.net (8.15.2/8.15.2/Debian-3) with ESMTPSA id 06LHnfbW031562 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 21 Jul 2020 12:49:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=tnetconsulting.net; s=2019; t=1595353784; bh=H4RXTNaiJLstbo19tdmLfelpRuR/+5lQAPl/HI50JmY=; h=Subject:To:References:From:Message-ID:Date:User-Agent: MIME-Version:In-Reply-To:Content-Type:Cc:Content-Disposition: Content-Language:Content-Transfer-Encoding:Content-Type:Date:From: In-Reply-To:Message-ID:MIME-Version:References:Reply-To: Resent-Date:Resent-From:Resent-To:Resent-Cc:Sender:Subject:To: User-Agent; b=kOAutRvPxdMh3dM7HNI8/bOmfgXEA9eQm/G4mH3UHfecdx4JU4s8QW6ra5DSGBRxY sP9H5UsVBV7O8g+ClGV/NBijNXE+YtkEcBHnqe/BjusnthNLaZtRVCNtZnq+FQnTaJ 3uV1+o2XsvONqol+ZHoe6fgmA72eLQVJjf3bmrp4= To: tuhs@minnie.tuhs.org References: <4fabd785-3763-d100-b97d-0a0a7377b833@spamtrap.tnetconsulting.net> <13529.1594950045@hop.toad.com> <20200717015914.GA12704@mcvoy.com> <20200717033555.GA18565@mcvoy.com> <0b2edf76-7199-4fc8-80bb-abeb00bb1334@www.fastmail.com> <20200721041547.GH388817@mit.edu> Message-ID: Date: Tue, 21 Jul 2020 11:49:41 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200721041547.GH388817@mit.edu> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms090701030704090309010900" Subject: Re: [TUHS] H.J. Lu Bootable Root & Base System disks X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Grant Taylor via TUHS Reply-To: Grant Taylor Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" This is a cryptographically signed message in MIME format. --------------ms090701030704090309010900 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 7/20/20 10:15 PM, tytso@mit.edu wrote: > Sorry for not responding on this thread earlier; I've been pretty=20 > swamped lately. Better late than never. I've found that truly interesting threads on TUHS, COFF, cctalk, et al.=20 tend to go on for weeks. > Xiafs was introduced at about the same time of ext2; Wikipedia=20 > states that >=20 > "Initially, Xiafs was more stable than ext2, but being a fairly > minimalistic modification of the MINIX file system, it was not very= > well suited for future extension." >=20 > The first part wasn't quite accurate. It turns out that xiafs had=20 > the same bug as ext2, but ext2 had the necessary sanity checking so=20 > that it actually issued a warning when the bug was triggered, where=20 > xiafs just silently corrupted the file system. Now I'm curious what said bug was. > The real issue was that xiafs was mostly a one-person show (namely=20 > Frank Xia) and he suffered blowback when he tried to rename xiafs=20 > to linuxfs, which was interpreted by many as a marketing effort ---=20 > about as tone-deaf as Stallman trying to jawbone people to rename=20 > "Linux" to "LiGNUx" ten years later. Hum. :-/ To be perfectly honest, I hadn't heard of Xia-FS until I started messing = with H.J. Lu's bootable root disk. I started messing with Linux in late = '90s. By then, everything was ext2. > And xiafs was technically worse compared to ext2, and ext2 had a larger= =20 > number of developers. So xiafs never really stood much of a chance. That makes sense, retrospectively. > Also, by that point, very few people were actually using HJ's boot/root= =20 > disks. Most developers had moved on to the MCC distribution by that=20 > time, since it was more comprehensive, and it was easier to bootstrap=20 > a working development system. Ya. It seems as if H.J. Lu's disk had largely fallen to the annals of=20 history by '95. MCC and SLS had come and gone, being replaced with=20 Slackware and Debian by the time that I started messing with Linux. > So to be honest, I had never noticed that HJ was trying to use xiafs=20 > in his boot/root disks. I can't guarantee that H.J. Lu used xiafs for his bootable root disk. I = want to say that he was using the minux file system. It's the base disk = images that seem to be using xiafs. I've found a treasure trove of old Linux disk images on OldLinux [1] and = am messing with them in Bochs. (Bochs is working out better than=20 VirtualBox.) [1] http://www.oldlinux.org/ --=20 Grant. . . . unix || die --------------ms090701030704090309010900 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC CzkwggUhMIIECaADAgECAhA53zcXtFD9dENby64EqrKqMA0GCSqGSIb3DQEBCwUAMIGWMQsw CQYDVQQGEwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxm b3JkMRgwFgYDVQQKEw9TZWN0aWdvIExpbWl0ZWQxPjA8BgNVBAMTNVNlY3RpZ28gUlNBIENs aWVudCBBdXRoZW50aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMB4XDTE5MTExOTAwMDAw MFoXDTIwMTExODIzNTk1OVowKzEpMCcGCSqGSIb3DQEJARYaZ3RheWxvckB0bmV0Y29uc3Vs dGluZy5uZXQwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCwIZcEJcuE7mUfxJnD I8oOSX/TvAhoP11agD++8L7Ok8fFJhJK0lOVRsq1M6lF2E2Vzuyffg2ppbecWvHcIRadsaiG imnrJQasdkhj/JUtqPUXnC0SVA0AzYLrLReQB+9j/jTgB5JnFLyC2lEn9KTA6JmDGjvVkv2T 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