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=-1.0 required=5.0 tests=HTML_MESSAGE, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 21855 invoked from network); 1 Jun 2020 22:45:59 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 1 Jun 2020 22:45:59 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 83A419C96C; Tue, 2 Jun 2020 08:45:58 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 0EA9D9C5F1; Tue, 2 Jun 2020 08:45:21 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id DEFF89C5F1; Tue, 2 Jun 2020 08:45:18 +1000 (AEST) Received: from mail-pl1-f177.google.com (mail-pl1-f177.google.com [209.85.214.177]) by minnie.tuhs.org (Postfix) with ESMTPS id 42AF393D46 for ; Tue, 2 Jun 2020 08:45:18 +1000 (AEST) Received: by mail-pl1-f177.google.com with SMTP id t16so516002plo.7 for ; Mon, 01 Jun 2020 15:45:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=GanN3MdIL7BqugiECxmIiFNegaQVW25pz0tlMEkNt8g=; b=JjgQ0IHNjrFKvWkkGANF0ZxsaE4drMnnffi7eSntnhXECuP76YkIC00V49W61fF8aA HUY06WZ4or/PGx3Sfi/a7quJXUCzgGMLLcXlU4b58eIymuk8DUCRXj758NPzXDSdqWB6 jdb9DVELgcgJlVRAM0xcrfBOAcvGgr3Ll4zfJnyaj8ChVRAiAAPhBaNOSiBAJHLXSPi4 xNhGzPUUdzaBY/vS6kOW00V8Seq497Cac+mrNQTc8B43Ic5QQfDQ8k0n8AW1YiQFpXTO OjznC4ukwco3KXW0riSBvjZvKNjN/5hhQZxxZBcYzx8R1QgiYVwhzZBgsw1CsgZ6O0kd 81kQ== X-Gm-Message-State: AOAM533HUbJJbl0WiafiQRvqqyN0sybCQfXovouZRgXHYRzwrIzC14qs kToTzC8Ch6Y18cGEYATbBmqJAMkmHb4eQmml8pU= X-Google-Smtp-Source: ABdhPJwXA/rb2StrUcFo0+YqpSv3FhgLengVYN7UBT8/GmFYBZ6t3i2z4cTCOvmiw/FI/uB7wvpPKUFS2WCnD71BSNM= X-Received: by 2002:a17:90a:fa95:: with SMTP id cu21mr1794205pjb.56.1591051517501; Mon, 01 Jun 2020 15:45:17 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Paul Riley Date: Tue, 2 Jun 2020 06:45:07 +0800 Message-ID: To: Clem Cole Content-Type: multipart/alternative; boundary="0000000000008523ca05a70d8c0f" 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" --0000000000008523ca05a70d8c0f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Clem, Thanks for your help. You=E2=80=99ve correctly interpreted my question. Is the disk image independent from the disk hardware? I=E2=80=99d assume th= at different disks may have different block sizes etc, so the disk type may be important. The target system is LSX, a cut-down version of V6 designed to run on the LSI-11. There are very few system utilities in the standard build (no mount for example). The second floppy is permanently mounted at boot time. I=E2= =80=99m interested in making source file floppies on my modern system to use on the LSX, so I want to be able to create an image file from a source folder tree= . Paul On Mon, 1 Jun 2020 at 9:05 pm, Clem Cole wrote: > > > On Mon, Jun 1, 2020 at 6:19 AM Paul Riley wrote: > >> Is there a Windows or Linux utility to create a disk image in any of the >> above formats, from a local folder tree? >> > What I think you are asking, is there a utility for a modern OS that will > walk a local folder tree on my OS and create a new file whose structure i= s > that of the file system for OS . > > The issue is not the device as much as the OS and disk file layout. As > far as UNIX (or simh at the OS level) is concerned, the disk is just a > linear array of bytes, addressed by blocks. The physical format is not > seen by UNIX. > > There are numerious utilities, as well as 'foreign file systems' that are > available. For instance, many Unix's can write RT-11 and MS-DOS format > with standard utilities. It really depends the OS. That said, > if the target OS is modern enough to support NFS or Samba, the easiest wa= y > might be export the file system from local system, and then running a > simulated OS, 'mount' the file system. > --=20 *Paul Riley* Mo: +86 186 8227 8332 Email: paul@rileyriot.com --0000000000008523ca05a70d8c0f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Clem,

Thanks for your help. You=E2=80=99ve correctly interpreted my question= .

Is the disk image inde= pendent from the disk hardware? I=E2=80=99d assume that different disks may= have different block sizes etc, so the disk type may be important.

The target system is LSX, a cut= -down version of V6 designed to run on the LSI-11. There are very few syste= m utilities in the standard build (no mount for example). The second floppy= is permanently mounted at boot time. I=E2=80=99m interested in making sour= ce file floppies on my modern system to use on the LSX, so I want to be abl= e to create an image file from a source folder tree.

Paul

On Mon, 1 Jun 2020 at 9:05 pm, = Clem Cole <clemc@ccc.com> wrote:=

<= /div>
O= n Mon, Jun 1, 2020 at 6:19 AM Paul Riley <paul@rileyriot.com> wrote:
Is there a Windows or Linux utility to cre= ate a disk image in any of the above formats, from a local folder tree?=C2= =A0
What I think you are asking, is th= ere a utility for a modern OS that will walk a local folder tree on my OS a= nd create a new file whose structure is that of the file system for OS <= insert yours here>.

The i= ssue is not the device as much as the OS and disk file layout.=C2=A0 =C2=A0= As far as UNIX (or simh at the OS level) is concerned, the disk is just a = linear array of bytes, addressed by blocks.=C2=A0 The physical format is no= t seen by UNIX.

There are nu= merious=C2=A0utilities, as well as 'foreign file systems' that are = available.=C2=A0 =C2=A0For instance, many Unix's can write RT-11 and MS= -DOS format with standard utilities.=C2=A0=C2=A0=C2=A0It really depends the OS.=C2=A0 That said,
if the target OS is modern enough to support NFS or Samba,= the easiest way might be export the file system from local system, and the= n running a simulated OS, 'mount' the file system.
--
<= div>
Paul Riley

Mo: +86 186 822= 7 8332

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