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_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 18209 invoked from network); 2 Jun 2020 19:08:51 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 2 Jun 2020 19:08:51 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id CD8349CB06; Wed, 3 Jun 2020 05:08:48 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 354639CA44; Wed, 3 Jun 2020 05:08:28 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="njku+0hC"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id D84FF9CA44; Wed, 3 Jun 2020 05:08:26 +1000 (AEST) Received: from mail-pg1-f173.google.com (mail-pg1-f173.google.com [209.85.215.173]) by minnie.tuhs.org (Postfix) with ESMTPS id 8EBCF9C96B for ; Wed, 3 Jun 2020 05:08:26 +1000 (AEST) Received: by mail-pg1-f173.google.com with SMTP id p30so5531531pgl.11 for ; Tue, 02 Jun 2020 12:08:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=6jaz/508C/pdCUmaf0ciEnTeTE0e5pgH0d2R97OmPD4=; b=njku+0hC0eW5CwCFDcCG9mw02pANOl5Bty9Vyc0U1uNqjfFiGb+rp13iXpkeSiUp4Q glmJO3FsqlKDQnlt4a3NbB+lhI1cE13A3SF03JZmIw/KtlAe90DBo/dXoPcy9zhmaE5x lodrj9yhc2GGgc2hSx1d5963jCKA73vY8hnXKnEDPA80QMUxzvyRlJWySBTCXXUd68Zs kv7qvGz2TCuYoKJtT/P0IKNtt2RY6A35VR9+wFOc1MfLl+g+8P1FVZRqTPQrJXGs1VHW iZVZfEpIab/oRCizVdC7USPneXkU+05S2GMX4/NMj8OVCMbiLAEPlIsLndDj0oGKAa32 gp1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=6jaz/508C/pdCUmaf0ciEnTeTE0e5pgH0d2R97OmPD4=; b=XIrzI6DZ3wqhmOWcOmvSbSx6iTjJRFPxL14DaJA4S7w8AMyCIg9b1bMTIlnE2lKt3n AagkQIgHkHf9I5IIRQgvBYdg4l1vtdoeNNWjpxG0BRWF1omBJVMZ8M0CPC7zOdHHZVkn KstcawYTZGcrv2jyX59bNmNVloqUxmf2/Dd+EFYQ+T2Ji2D5UMx+SifT5rkweL3yRB8s 86vVTdZiw7kPHhPCe2UbrPJ2d7XWcT0M/ed5aGJMJ3/XqATynRp2ynbyMahw4cs4C3YC BSETLsirMMAUZkgLlOqsU1Hx9hlmfC7JZotPumDqI2laA3WDojZmIU3S2wB6fIW8XIQS zjRw== X-Gm-Message-State: AOAM532gomGkvBLyZAGEk8Djy/VX6im+lKNtFUg3TqAMbkw6ObE7lXx6 QrflV5UB8yn/kAYYvQ1vZupB5tEZR6g= X-Google-Smtp-Source: ABdhPJyN5KYRnJTiqvc8+isBd7660fy6EWNqq7NDOtjmLFEkGT8tKeQA9CMYGjnyTPdjOzYry/rn7g== X-Received: by 2002:a63:521e:: with SMTP id g30mr26136356pgb.106.1591124905796; Tue, 02 Jun 2020 12:08:25 -0700 (PDT) Received: from ?IPv6:2600:8800:7c80:1584:8197:7df9:d53f:7391? ([2600:8800:7c80:1584:8197:7df9:d53f:7391]) by smtp.gmail.com with ESMTPSA id h4sm2919944pjq.55.2020.06.02.12.08.24 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 02 Jun 2020 12:08:24 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) From: Adam Thornton In-Reply-To: Date: Tue, 2 Jun 2020 12:08:23 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: <3A17BE73-777A-4CF2-8D55-A5C802FC767D@gmail.com> References: To: Paul Winalski X-Mailer: Apple Mail (2.3608.80.23.2.2) Subject: Re: [TUHS] DEC RL01/RL02 RX01/RX02 Disk Image Creator 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: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" > On Jun 2, 2020, at 11:59 AM, Paul Winalski = wrote: >=20 > On 6/2/20, Ronald Natalie wrote: >>=20 >> Except on the RX=E2=80=99s. The RX01 was 128 byte sectors and the = later ones 256 >> and a odd interleaving strategy. However, the boot block and the = rest of >> the file systems (both UNIX and RT at least) >> just aggregated the smaller (logical) sectors together to make a 512 = byte >> one. >=20 > At least they all supported fixed-length sectors. Was there ever a > Unix implementation that supported IBM-style CKD disk devices? If you count Linux, sure, Linux for the S/390 and zSeries. If you don=E2=80=99t=E2=80=A6well, for one brief shining moment before = IBM squeezed too hard on the price and Oracle bought Sun instead, there = was an OpenSolaris port to the zSeries, and it did support 3390 type = devices. I may have had something to do with that latter device driver. Adam=