read data in a Next formatted disk

[Camilo La Rota]

Helo,

I would like to know how to acces from a Windows (or linux) machine the
data contained on floppy disk formatted in a Next machine.
Is there any (free) emulator of the the NextStep OS that let me read it ?

Thank you,

Camilo

[Guest]

In <cllg2e$qug$1@news-sop.inria.fr> Camilo La Rota wrote: Helo, I would like to know how to acces from a Windows (or linux) machine the data contained on floppy disk formatted in a Next machine. Is there any (free) emulator of the the NextStep OS that let me read it
? Thank you, Camilo

Not to my knowledge. Only Windows way will be rawread.... (but that is
something you probably don't want to do)
Linux is also dumb. At least they promised to support NeXT-Step file
systems on hard disk since kernel 2.2, but they cannot do this even
today. Works only with standard formatted disk, not real NeXT-Step disks,
i.e formatted with a disktab entry. I assume this will hold for floppy's
too. (Well I let the window stay, need just 2min for a verify....)

OK -> unknown filesystem, as assumed Linux isn't able to understand any
kind of NeXT-Step medium.

Henry
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[David Evans]

In article <2u75tqF27o3lsU2@uni-berlin.de>, <Henry@Koplien.de> wrote:Linux is also dumb. At least they promised to support NeXT-Step filesystems on hard disk since kernel 2.2, but they cannot do this eventoday. Works only with standard formatted disk, not real NeXT-Step disks,i.e formatted with a disktab entry.

Hmmmm? The filesystem itself is no problem under Linux...are you
talking about partitioning gotchas?

--
David Evans dfevans@bbcr.uwaterloo.ca
Research Associate, Ph.D. Candidate http://bbcr.uwaterloo.ca/~dfevans/
University of Waterloo "Default is the value selected by the composer
Ontario, Canada overridden by your command." - Roland TR-707 Manual

[Guest]

In <cllrgr$s3l$1@rumours.uwaterloo.ca> David Evans wrote: In article <2u75tqF27o3lsU2@uni-berlin.de>, <Henry@Koplien.de> wrote:Linux is also dumb. At least they promised to support NeXT-Step filesystems on hard disk since kernel 2.2, but they cannot do this eventoday. Works only with standard formatted disk, not real NeXT-Step
disks,i.e formatted with a disktab entry. Hmmmm? The filesystem itself is no problem under Linux...are you talking about partitioning gotchas?

YUP. NeXT is recognized when having a partitioning table (was it ID a4
for NeXT?), but with a disktab entry formatted disk (having no
partitioning table in the usual way) I have never seen any OS that was
able to recognize the disk, except NeXT-Step itself. Give it try if you
have a spare disk. Create a disktab entry with partitions of size you
desire, format the disk, and try to read anything on disk with windows,
Linux, or whatever you like. All the systems tell you, that your disk is
not formatted, what put me in charge using my back-up with 8 hours of
restore under SUSE Linux 6.3 in former times. So not only Bill Gates has
deserved his cookie...

Henry

--

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snail mail : Henry Koplien \|/
From the Center of Nowhere o(O O)o
---- eMail : Henry@NiKo-Internetpraesenz.de ----ooOo---(_)---oOoo-----

[David Evans]

In article <2u7htmF247su7U1@uni-berlin.de>, <Henry@Koplien.de> wrote:but with a disktab entry formatted disk (having nopartitioning table in the usual way) I have never seen any OS that wasable to recognize the disk, except NeXT-Step itself.

Ahhhh errrrr yeah, I can see that being a problem. You'd likely
need to add a new "partition table type" to your OS of interest. I
assume that Linux has an architecture for doing this given that it
can handle IRIX, Sun, etc. table types. Maybe there's even one that
can grok NeXT partitions, if they're sufficiently BSD-like.

--
David Evans dfevans@bbcr.uwaterloo.ca
Research Associate, Ph.D. Candidate http://bbcr.uwaterloo.ca/~dfevans/
University of Waterloo "Default is the value selected by the composer
Ontario, Canada overridden by your command." - Roland TR-707 Manual

[Andreas Berger]

Henry,
YUP. NeXT is recognized when having a partitioning table (was it ID a4 for NeXT?), but with a disktab entry formatted disk (having no partitioning table in the usual way) I have never seen any OS that was able to recognize the disk, except NeXT-Step itself.

Thanx for your explanation. Now i know why DayDream doesn't found his
harddrive images on an disktab hd. On an NeXT formatted hd all things
works OK.
Is there any way to create a partition table from an existing disktab
harddrive and write that to the proper locations on hd?
Is there a way, to get builddisk accepting disktab entries instead of
using inner values?

regards, Andreas

[Guest]

In <2u7p3uF26nr5hU1@uni-berlin.de> "Andreas Berger" wrote: Henry, YUP. NeXT is recognized when having a partitioning table (was it ID
a4 for NeXT?), but with a disktab entry formatted disk (having no partitioning table in the usual way) I have never seen any OS that
was able to recognize the disk, except NeXT-Step itself. Thanx for your explanation. Now i know why DayDream doesn't found his harddrive images on an disktab hd. On an NeXT formatted hd all things works OK. Is there any way to create a partition table from an existing disktab harddrive and write that to the proper locations on hd? Is there a way, to get builddisk accepting disktab entries instead of using inner values? regards, Andreas

Not to my best knowledge, if you want to keep any data. Normally fdisk is
doing the job, - in the usual way that most other OS will recognize this
as a NeXT-Step partition with ID a4(?). Using fdisk has several
drawbacks, because it is realy outdated on NeXT. And if you want to have
e.g. 7 partitions with 2GB (4GB on OPENSTEP) each, you are lost with any
tool on NeXT except a disktab entry. As long as you have no need for a
second *kind* of partition, I can not see any reason to do the fdisk
hassle. I like to have total control over the disk, I always had bad
experiences with other OS in the same machine, so normally I have
different computer for different OSs, and therefore no need for doing
this fdisk stuff.

I also have some tricky formatted disks for dualboot's and they all need
the partitioning tables. (E.g. a NeXT-Step partition with 4MB -the
smallest size possible- holding the necessary network boot stuff, and a
40GB NTSF behind, -and you can choose at start up if you want to go with
NeXT-Step or WindowsXP) But they really have small NeXT-Step partitions
that fit on two floppy's, so this doesn't hurt if there arise a
problem...

Henry
--

----------------------------------------------------------------------
snail mail : Henry Koplien \|/
From the Center of Nowhere o(O O)o
---- eMail : Henry@NiKo-Internetpraesenz.de ----ooOo---(_)---oOoo-----

[Dave Bailey]

Linux kernels since at least V 2.2 have understood Next filesystems
(but not the sub-partitions); use the mount command:

mount -t ufs -o ufstype=nextstep,ro /dev/fd0 /Next_floppy

Of course the kernel needs to be compiled with ufs support (look at
/proc/filesystems to check), and there's no write support yet.

[Cute Swinger 8\)]

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"Camilo La Rota" <Camilo.Larota@sophia.inria.fr> wrote in message
news:cllg2e$qug$1@news-sop.inria.fr... Helo, I would like to know how to acces from a Windows (or linux) machine the data contained on floppy disk formatted in a Next machine. Is there any (free) emulator of the the NextStep OS that let me read it ? Thank you, Camilo