[Discuss] Peculiar dd or dcfldd behaviour

Murray Strome wmstrome at shaw.ca
Sun Nov 15 01:41:53 PST 2015

Update: still don't know why dd does not work on my son's computer. However, when I did the last clone with Macrium Reflect and resized the partitions, it worked fine and now the new HD is working well.

----- Original Message -----
From: Murray Strome <wmstrome at shaw.ca>
To: discuss at vlug.org
Sent: Sat, 14 Nov 2015 15:52:53 -0700 (MST)
Subject: Re: [Discuss] Peculiar dd or dcfldd behaviour

Thanks. I did not realize that GParted could clone a partition to another! For Windows 7 C drive, it must be a clone as copying won't work. I have read in a couple of places that this does not work for Windows 7, 8 or 10.
I did find another way to do it using free Macrium Reflect. The cloned drive did work until I tried resizing the partitions (since I was moving it to a larger drive) with GParted. I probably goofed there. Anyway, I found that Macrium can resize the partitions while it is cloning so am trying it again that way. Macrium is a lot faster than dd or dcfldd (neither of which seem to work on this computer for some reason that I do not understand, nor have I been able to find any answer by internet searches) as it does not copy unused sectors.

I also found that the "bootable" Macrium USB memory drive that was created will not boot on my son's computer. I will try it on mine later.

We will see if my latest attempt at cloning with Macrium Reflect succeeds!


----- Original Message -----
From: Patrick <nixniq-sneaking at sneakemail.com>
To: discuss at vlug.org
Sent: Sat, 14 Nov 2015 14:33:44 -0700 (MST)
Subject: Re: [Discuss] Peculiar dd or dcfldd behaviour

On Sat, 14 Nov 2015 00:17:53 -0700 (MST)
Murray Strome wrote:

> I get an error something like:
> dcfldd:/dev/sdX:No such drive
> However, the drive /dev/sdX is there; I can mount its partitions, work with it with fdisk or GParted.
> Does anyone have any ideas as to what is going on?

Not really, but GParted can copy partitions [including NTFS] from
one disk to another -- a simple copy/paste operation. So if you
don't have the same trouble with it that you've had with dd, why
not use GParted instead?

> Thanks,

You're welcome? Don't thank me unless it works... ;-)

I kind of wonder what the actual problem is, btw, as this message
doesn't really solve it, just suggests a possible way to avoid it.

> Murray 

If it's working, the diagnostics say it's fine.
If it's not working, the diagnostics say it's fine.
		-- A proposed addition to rules
		 for realtime programming
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