XPost: comp.sys.mac.system

In message <eli$2005281224@qaz.wtf> Eli the Bearded <*@eli.users.panix.com> wrote:

In comp.sys.mac.vintage, André G. Isaak <agisaak@gm.invalid> wrote:

This is a longshot, but does anyone know of any utilities (OS X or
classic - doesn't matter) which can mount and/or extract files from
SVFS (the A/UX file system) disk images?

My recollection is that A/UX used a System V filesystem. These days
"SVFS" maps to a completely different FS. I would test if various free
unixes like Linux and FreeBSD or emulated older unixes could mount it.

A/UX used two different filesystems, version 3.0 abandoned the SVFS
format, but I don't remember what they went to. I know of no way to
access the old SVFS and all the searches for it bring up the other SVFS
where the V stands for Virtual.

I suspect the Mac II emulator is the only way to go. You will need to
create a disk image in your host OS that is empty and then move the
files to the empty image in your shoebill emulator. This will need you
to know exactly how to use dd to first make the image and second copy
the files to that image.

Actually, probably make a tar file of the file and then assuming you've
mounted the image and it shows up as /dev/disk01s1 (I am sure that is
wrong, but you are looking for the mount of the VOLUME not the actual
disk) then you do something along the lines of

dd if=myfile.tar of=/dev/disk01s1/

Then you mount the image in you host OS and hopefully extract your file.

I suspect it is a bit more complicated than that. You might need to
encode the binary tar file into text with something like binhex or
uuencode before you put it on your image.

The other workflow is to use DART to make a disk image of your
disk and copy that to an external drive, but I am not sure that DART
exists for A/UX 1.1?

SVFS stood for System V File System and uses an early version of UFS.

Will A/UX 3.0 convert your file system? or do you not have access to
that version?

--
There is a tragic flaw in our precious Constitution, and I don't know
what can be done to fix it. This is it: Only nut cases want to be
president.

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XPost: comp.sys.mac.system

On 2020-05-28 15:40, Lewis wrote:

In message <eli$2005281224@qaz.wtf> Eli the Bearded <*@eli.users.panix.com> wrote:

In comp.sys.mac.vintage, André G. Isaak <agisaak@gm.invalid> wrote:

This is a longshot, but does anyone know of any utilities (OS X or
classic - doesn't matter) which can mount and/or extract files from
SVFS (the A/UX file system) disk images?

My recollection is that A/UX used a System V filesystem. These days
"SVFS" maps to a completely different FS. I would test if various free
unixes like Linux and FreeBSD or emulated older unixes could mount it.

A/UX used two different filesystems, version 3.0 abandoned the SVFS
format, but I don't remember what they went to. I know of no way to
access the old SVFS and all the searches for it bring up the other SVFS
where the V stands for Virtual.

I suspect the Mac II emulator is the only way to go. You will need to
create a disk image in your host OS that is empty and then move the
files to the empty image in your shoebill emulator. This will need you
to know exactly how to use dd to first make the image and second copy
the files to that image.

The problem I've run into is that shoebill doesn't seem to want to mount
any disk images other than the startup image. What little documentation
that exists for shoebill says that HFS images can be assigned to SCSI
ID's above zero in the preferences, but I've been unable to create an
empty image which it recognizes (using dart and diskcopy with various
options). There's no error message given. They simply don't appear.

André


--
To email remove 'invalid' & replace 'gm' with well known Google mail
service.

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XPost: comp.sys.mac.system

In message <rar2ld$2uh$1@remote5bge0.ripco.com> bje@ripco.com <bje@ripco.com> wrote:

We used to run A/UX on a Quadra 950 but I really don't remember much about its file systems.

That would have been A/UX 3, and it did not use SVFS.


--
'The gods,' he said. 'Imprisoned in a thought. And perhaps they were
never more than a dream.' --Sourcery

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