Problem with dd to raw disks

Problem with dd to raw disks

[Anees Mannesseri]

Hi,
  I am facing problems issuing dd to raw disks from
windows 2k3 server thru cygwin.

dd if/dev/zero of="\\\\.\\PHYSICALDRIVE4" count=50000
seek =3 fails with the error 

dd: opening `\\\\.\\PHYSICALDRIVE4': Invalid argument

But it works the other way, I mean if i give
"\\\\.\\PHYSICALDRIVE4" as the input device and
/dev/null as the output device.
Any hints/clues ?

Thanks
Anees

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RE: Problem with dd to raw disks

[Morche Matthias]

Did You ever try to use //./physicaldrive4 instead? It seems to a "quotation problem"...

> -----Original Message-----
> From: cygwin-owner@cygwin.com 
> [mailto:cygwin-owner@cygwin.com]On Behalf
> Of Anees Mannesseri
> Sent: Monday, March 01, 2004 1:29 PM
> To: cygwin@cygwin.com
> Subject: Problem with dd to raw disks
> 
...
> dd if/dev/zero of="\\\\.\\PHYSICALDRIVE4" count=50000
> seek =3 fails with the error 
> 
> dd: opening `\\\\.\\PHYSICALDRIVE4': Invalid argument
...

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Re: Problem with dd to raw disks

[Corinna Vinschen]

On Mar  1 14:07, Morche Matthias wrote:
> Did You ever try to use //./physicaldrive4 instead? It seems to a "quotation problem"...

What about reading the user's guide instead?

http://cygwin.com/cygwin-ug-net/using-specialnames.html#AEN806

Corinna

> > -----Original Message-----
> > dd if/dev/zero of="\\\\.\\PHYSICALDRIVE4" count=50000
> > seek =3 fails with the error 
> > 
> > dd: opening `\\\\.\\PHYSICALDRIVE4': Invalid argument
> ...
> 
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Re: Problem with dd to raw disks

[Larry Hall]

Pah!  The User's Guide.  That's just a document full of useful 
information.  Why would anyone want to read that? ;-)

Larry


At 09:47 AM 3/1/2004, you wrote:
>On Mar  1 14:07, Morche Matthias wrote:
>> Did You ever try to use //./physicaldrive4 instead? It seems to a "quotation problem"...
>
>What about reading the user's guide instead?
>
>http://cygwin.com/cygwin-ug-net/using-specialnames.html#AEN806
>
>Corinna
>
>> > -----Original Message-----
>> > dd if/dev/zero of="\\\\.\\PHYSICALDRIVE4" count=50000
>> > seek =3 fails with the error 
>> > 
>> > dd: opening `\\\\.\\PHYSICALDRIVE4': Invalid argument
>> ...
>> 


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Re: Problem with dd to raw disks

[Christopher Faylor]

On Mon, Mar 01, 2004 at 11:35:40AM -0500, Larry Hall wrote:
>Pah! The User's Guide.  That's just a document full of useful
>information.  Why would anyone want to read that?  ;-)

Maybe we need a howto on reading the user's guide.  It should certainly
be in the FAQ that people should read the documentation.  How would people
know that they should read the documentation unless it was spelled out
somewhere in black and white?

cgf

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Re: Problem with dd to raw disks

[Yitzchak Scott-Thoennes]

On Mon, Mar 01, 2004 at 11:44:38AM -0500, Christopher Faylor wrote:
> On Mon, Mar 01, 2004 at 11:35:40AM -0500, Larry Hall wrote:
> >Pah! The User's Guide.  That's just a document full of useful
> >information.  Why would anyone want to read that?  ;-)
> 
> Maybe we need a howto on reading the user's guide.  It should certainly
> be in the FAQ that people should read the documentation.  How would people
> know that they should read the documentation unless it was spelled out
> somewhere in black and white?

You know, the thing that really bugs me about cygwin is the half-baked
attempts at documentation.  A FAQ entry suggesting reading the User's
Guide is completely useless unless the User's Guide tells people to
read the FAQ.

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RE: Problem with dd to raw disks

[Ken Thompson]

What really bugs me is people who complain instead of doing something.  Quit
complaining and do something about it. This is open source after all.

Ken


> -----Original Message-----
> From:  Yitzchak Scott-Thoennes
> Subject: Re: Problem with dd to raw disks
>
>
> On Mon, Mar 01, 2004 at 11:44:38AM -0500, Christopher Faylor wrote:
> > On Mon, Mar 01, 2004 at 11:35:40AM -0500, Larry Hall wrote:
> > >Pah! The User's Guide.  That's just a document full of useful
> > >information.  Why would anyone want to read that?  ;-)
> >
> > Maybe we need a howto on reading the user's guide.  It should certainly
> > be in the FAQ that people should read the documentation.  How
> would people
> > know that they should read the documentation unless it was spelled out
> > somewhere in black and white?
>
> You know, the thing that really bugs me about cygwin is the half-baked
> attempts at documentation.  A FAQ entry suggesting reading the User's
> Guide is completely useless unless the User's Guide tells people to
> read the FAQ.
>
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>
>


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Re: Problem with dd to raw disks

[Yitzchak Scott-Thoennes]

Oh well, I thought I'd made my intent impossible to mistake.
<irony offsense=not_intended>
Entire discussion reformatted with top-quoting for your convenience
(though I refrained from leaving the list-trailers in).
</irony>

On Mon, Mar 01, 2004 at 12:23:51PM -0500, Ken Thompson wrote:
> What really bugs me is people who complain instead of doing something.  Quit
> complaining and do something about it. This is open source after all.
> 
> Ken
> 
> > -----Original Message-----
> > From:  Yitzchak Scott-Thoennes
> > Subject: Re: Problem with dd to raw disks
> >
> > You know, the thing that really bugs me about cygwin is the half-baked
> > attempts at documentation.  A FAQ entry suggesting reading the User's
> > Guide is completely useless unless the User's Guide tells people to
> > read the FAQ.
> >
> > On Mon, Mar 01, 2004 at 11:44:38AM -0500, Christopher Faylor wrote:
> > >
> > > Maybe we need a howto on reading the user's guide.  It should certainly
> > > be in the FAQ that people should read the documentation.  How
> > would people
> > > know that they should read the documentation unless it was spelled out
> > > somewhere in black and white?
> > >
> > > On Mon, Mar 01, 2004 at 11:35:40AM -0500, Larry Hall wrote:
> > > >Pah! The User's Guide.  That's just a document full of useful
> > > >information.  Why would anyone want to read that?  ;-)

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RE: Problem with dd to raw disks

[Igor Pechtchanski]

Ah, but you'd have to read the documentation for that...
	Igor
P.S. What's "cygwim.com", and what relevance does it have to this
discussion? ;-)

On Mon, 1 Mar 2004, Ken Thompson wrote:

> What really bugs me is people who complain instead of doing something.
> Quit complaining and do something about it. This is open source after
> all.
>
> Ken
>
> > -----Original Message-----
> > From:  Yitzchak Scott-Thoennes
> > Subject: Re: Problem with dd to raw disks
> >
> > On Mon, Mar 01, 2004 at 11:44:38AM -0500, Christopher Faylor wrote:
> > > On Mon, Mar 01, 2004 at 11:35:40AM -0500, Larry Hall wrote:
> > > >Pah! The User's Guide.  That's just a document full of useful
> > > >information.  Why would anyone want to read that?  ;-)
> > >
> > > Maybe we need a howto on reading the user's guide.  It should
> > > certainly be in the FAQ that people should read the documentation.
> > > How would people know that they should read the documentation unless
> > > it was spelled out somewhere in black and white?
> >
> > You know, the thing that really bugs me about cygwin is the half-baked
> > attempts at documentation.  A FAQ entry suggesting reading the User's
> > Guide is completely useless unless the User's Guide tells people to
> > read the FAQ.

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Re: Problem with dd to raw disks

[Christopher Faylor]

On Mon, Mar 01, 2004 at 09:16:22AM -0800, Yitzchak Scott-Thoennes wrote:
>On Mon, Mar 01, 2004 at 11:44:38AM -0500, Christopher Faylor wrote:
>>On Mon, Mar 01, 2004 at 11:35:40AM -0500, Larry Hall wrote:
>>>Pah! The User's Guide.  That's just a document full of useful
>>>information.  Why would anyone want to read that?  ;-)
>>
>>Maybe we need a howto on reading the user's guide.  It should certainly
>>be in the FAQ that people should read the documentation.  How would
>>people know that they should read the documentation unless it was
>>spelled out somewhere in black and white?
>
>You know, the thing that really bugs me about cygwin is the half-baked
>attempts at documentation.  A FAQ entry suggesting reading the User's
>Guide is completely useless unless the User's Guide tells people to
>read the FAQ.

Absolutely agree, as long as there is a howto on reading both the FAQ
and the User's Guide.  Maybe the user's guide could also mention the howto.

cgf

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Re: Problem with dd to raw disks

[Anees Mannesseri]

Hi,
 Thanx for the references. I tried the forward slash,
but that didnt help. After going thru the user's
guide, i tried /dev/sde instead of //./PHYSICALDRIVE4
and it worked. From what i could undertand, the
problem is with opening the file for write. Any clue
on how to get thru this ?

Thanx
Anees
>On Mar  1 14:07, Morche Matthias wrote:
> Did You ever try to use //./physicaldrive4 instead?
It seems to a "quotation problem"...

>What about reading the user's guide instead?

>http://cygwin.com/cygwin-ug-net/using->specialnames.html#AEN806

>Corinna

> > -----Original Message-----
> > dd if/dev/zero of="\\\\.\\PHYSICALDRIVE4"
count=50000
> > seek =3 fails with the error 
> > 
> > dd: opening `\\\\.\\PHYSICALDRIVE4': Invalid
argument
> ...
> 
> --


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RE: Problem with dd to raw disks

[Hughes, Bill]

> Sent: 01 March 2004 16:45 From: Christopher Faylor
> On Mon, Mar 01, 2004 at 11:35:40AM -0500, Larry Hall wrote:
> >Pah! The User's Guide.  That's just a document full of useful
> >information.  Why would anyone want to read that?  ;-)
> 
> Maybe we need a howto on reading the user's guide.  It should 
> certainly
> be in the FAQ that people should read the documentation.  How 
> would people
> know that they should read the documentation unless it was spelled out
> somewhere in black and white?
> 
> cgf

But then how would anyone know to read the FAQ, or indeed how to find it?
It's much easier just to ask on this list, no-one minds after all...

Bill
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