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USB SCSI "ambiguous disc name"

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Andrew

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Apr 18, 2008, 8:57:42 AM4/18/08
to
On transferring a memory stick between a RiscPC with Unipod and an
Iyonix (but not the other way around) I get "ambiguous disc name" and
consequently can't access the device. This makes transfer impossible
and also prevents use of the device until its formatted again using
MKDOSDISC. Is there any way around this?

Andrew

--

John Williams (News)

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Apr 18, 2008, 9:08:45 AM4/18/08
to
In article <84dff591...@no.reply>,
Andrew <grou...@googlemail.com> wrote:

You should/must dismount the device before unplugging it. I always do it
twice just to be sure.

Not dismounting will give this error.

John

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Non-RISC OS posters change user to johnrwilliams or put 'risc' in subject
for reliable contact! Who is John Williams? http://www.picindex.info/author/
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Andrew

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Apr 18, 2008, 12:20:37 PM4/18/08
to
In message <4f91f6e2...@tiscali.co.uk>

"John Williams (News)" <UCE...@tiscali.co.uk> wrote:

> In article <84dff591...@no.reply>,
> Andrew <grou...@googlemail.com> wrote:
>
>> On transferring a memory stick between a RiscPC with Unipod and an
>> Iyonix (but not the other way around) I get "ambiguous disc name" and
>> consequently can't access the device. This makes transfer impossible
>> and also prevents use of the device until its formatted again using
>> MKDOSDISC. Is there any way around this?
>
> You should/must dismount the device before unplugging it. I always do it
> twice just to be sure.
>
> Not dismounting will give this error.
>

It was *definitely* dismounted before leaving the Iyonix and on
leaving the RiscPC. However, re-starting the Iyonix, I can now read
it.

Andrew

--

Chris Johnson

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Apr 18, 2008, 12:41:04 PM4/18/08
to
In article <84dff591...@no.reply>,
Andrew <grou...@googlemail.com> wrote:

It is a problem with SCSIFS on the Iyonix, and happens also with
memory cards from digital cameras etc. It seems to be due to the
Dismount not working correctly.

The easiest thing to do when this occurs (on the Iyonix) is
*rmreinit scsifs
and the card will then be recognised again.

--
Chris Johnson

News poster

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Apr 18, 2008, 1:10:39 PM4/18/08
to
In message <89730892...@no.reply>
grou...@googlemail.com (Andrew) wrote:

> In message <4f91f6e2...@tiscali.co.uk>
> "John Williams (News)" <UCE...@tiscali.co.uk> wrote:
>
> > In article <84dff591...@no.reply>,
> > Andrew <grou...@googlemail.com> wrote:
> >
> >> On transferring a memory stick between a RiscPC with Unipod and an

> >> Iyonix (but not the other way around) I get and


> >> consequently can't access the device. This makes transfer impossible
> >> and also prevents use of the device until its formatted again using
> >> MKDOSDISC. Is there any way around this?
> >
> > You should/must dismount the device before unplugging it. I always do it
> > twice just to be sure.
> >
> > Not dismounting will give this error.
> >
> It was *definitely* dismounted before leaving the Iyonix and on
> leaving the RiscPC. However, re-starting the Iyonix, I can now read
> it.

If this is a problem on the Iyonix side then create an Obey file with
the following command in it

*rmreinit scsifs

Double clicking on the obey file after the "ambiguous disc name" error
should let the Iyonix read from the USB stick.

Regards
Stan
--
http://mistymornings.net

Andrew

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Apr 21, 2008, 10:47:14 AM4/21/08
to
In message <4f920a52bechr...@spamcop.net>
Chris Johnson <chrisjoh...@spamcop.net> wrote:

>> On transferring a memory stick between a RiscPC with Unipod and an
>> Iyonix (but not the other way around) I get "ambiguous disc name"
>> and consequently can't access the device. This makes transfer
>> impossible and also prevents use of the device until its formatted
>> again using MKDOSDISC. Is there any way around this?
>
> It is a problem with SCSIFS on the Iyonix, and happens also with
> memory cards from digital cameras etc. It seems to be due to the
> Dismount not working correctly.
>
> The easiest thing to do when this occurs (on the Iyonix) is
> *rmreinit scsifs
> and the card will then be recognised again.
>

The problem is - and again people have said this is due to not being
dismounted when it has been - the Iyonix can seem to forget the data
on the drive and so open up an empty root directory. Meanwhile the
"used" in the disc menu indicates 100MB or whatever.

Andrew

--

druck

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Apr 21, 2008, 4:17:40 PM4/21/08
to
On 21 Apr 2008 grou...@googlemail.com (Andrew) wrote:

> In message <4f920a52bechr...@spamcop.net>
> Chris Johnson <chrisjoh...@spamcop.net> wrote:

>>> On transferring a memory stick between a RiscPC with Unipod and an
>>> Iyonix (but not the other way around) I get "ambiguous disc name"

[snip]

> The problem is - and again people have said this is due to not being
> dismounted when it has been - the Iyonix can seem to forget the data
> on the drive and so open up an empty root directory. Meanwhile the
> "used" in the disc menu indicates 100MB or whatever.

No thats a different problem due to the bastardised FAT format used by
XP. Nothing is forgotten, the documented FAT16 standard specifies a
root directory in a cirtain location, XP illegally uses a FAT32 style
root in a different place - but you don't expect Microsoft to follow
their own standards.

---druck

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The 32bit Conversions Page - http://www.quantumsoft.co.uk/druck/

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