Re: [Trinux-talk] Harddrive Format

[<tb...@ti...>]

The dd command you quote is to read IN the partition to a file.  I assume 
you are changing the command when you dd the file to a partition.  Do you 
know the proper device name for the partition you have just created?  Was 
it used in the dd (out) command?

You might try a "dd if=/dev/hdXX | od -c | head" and a 

"dd if=/directory/disk.img | od -c | head"  and compare them visually.  

This might tell you alot.

Perhaps you are missing an important piece...

A partition defines a region of disk.
A filesystem fills a partition, and defines how the data is organized.
A file is a container, placed within a filesystem, that can hold data.

[.*]nux offers features not found in other OS's, including the ability to 
bypass the filesystem and place a file on a partition and vise versa.

You can dd a partition to a file. and then dd the file back to a new
partition.  You will have mirrored the partition.  If you have both disks
connected but unmounted, then you can dd directly "dd if=/dev/hde1
of=/dev/hde2".  The imtermediary file is not necessary.  You can then
mount the second partition, just as you did the first.  If you couldn't
mount the source partition, then you won't be able to mount the clone.

What is on the partition you are hoping to clone?  Is is a windows 
partition? FAT? NTFS? or Linux? minix, ext2, ext3?.  I think this may be a 
mount issue...

On Wed, 13 Feb 2002, Richard Thomas wrote:

> Okay, here goes.
> 
> Using cfdisk, I create a partition on the hard drive of type 'Linux'. Then I
> 'W'rite the partition table.
> 
> I tried to mount the partition using the minix type. I get the error, "Too
> many filesystems, wrong partition, yada yada..."
> 
> I loaded ext2.o and tried to mount using the ext2 type. Didn't work.
> 
> I loaded ntfs.o and change the partition type to 'HPFS/NTFS'. I tried to
> mount using the ntfs type. Didn't work.
> 
> I guess I don't know what "-t type" to specify when mounting a Linux type
> partition.
> 
> When I initially tried to dd partition to the image file on a FAT32
> partition, I got an error about exceeding the 2GB file limit.
> 
> The dd command line looks like this: dd if=/dev/hdd1 of=/directory/disk.img
> bs=1M
> 
> I am writing a hard drive partition to an image file and then writing the
> image file to a 'clean' hard drive.
> 
> Richard Thomas
> 
> ----- Original Message -----
> From: <tb...@ti...>
> To: "Richard Thomas" <ri...@th...>
> Cc: "Trinux-Talk" <tri...@li...>
> Sent: Wednesday, February 13, 2002 9:00 AM
> Subject: Re: [Trinux-talk] Harddrive Format
> 
> 
> >
> > It should work.  However, the devil is in the details.
> >
> > What modules did you load?
> >
> > What is the dd command line?
> >
> > What are you doing after the dd finishes, that causes you to believe that
> > the dd failed?
> >
> > If you hope to use the disk as a filesystem, then the image you are
> > putting on the disk must be a fully formed filesystem.  You should be able
> > to test the image with a mount -o loop command before you do the dd.  The
> > partition type should be set to match the type of filesystem.
> >
> > More info would help.
> >
> > On Wed, 13 Feb 2002, Richard Thomas wrote:
> >
> > > Good morning all...
> > >
> > > I have a newbie question, sorry.
> > >
> > > I am using cfdisk to create a partition
> > > on a harddrive. I select the default
> > > type as Linux and then write the
> > > partition table. However, I am not able
> > > to then mount the partition under
> > > Trinux. I load what I think are the
> > > appropriate modules. I have even tried
> > > changing the type to NTFS with no luck.
> > > What I am trying to do is create a
> > > partition that I can write a 6.5GB image
> > > file to using dd. I previously tried
> > > this with VFAT, but ran into the 2GB
> > > file size limit. Any suggestions?
> > >
> > > Thanks in advance.
> > >
> > > Richard Thomas
> > >
> > >
> > > _______________________________________________
> > > Trinux-talk mailing list
> > > Tri...@li...
> > > https://lists.sourceforge.net/lists/listinfo/trinux-talk
> > >
> >
> > --
> > --------------------
> > Timothy Burt
> > Internet Specialist
> >
> >
> >
> 
> 
> _______________________________________________
> Trinux-talk mailing list
> Tri...@li...
> https://lists.sourceforge.net/lists/listinfo/trinux-talk
> 

-- 
--------------------
Timothy Burt
Internet Specialist