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computers / alt.os.linux.mint / Clone a disk problem

SubjectAuthor
* Clone a disk problemRobH
`* Re: Clone a disk problemRobH
 `* Re: Clone a disk problempinnerite
  `* Re: Clone a disk problemJack Strangio
   `* Re: Clone a disk problempinnerite
    `- Re: Clone a disk problemPaul

1
Clone a disk problem

<l4juddFkti7U1@mid.individual.net>

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From: rob@nospam.com (RobH)
Newsgroups: alt.os.linux.mint
Subject: Clone a disk problem
Date: Sun, 3 Mar 2024 18:38:37 +0000
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 by: RobH - Sun, 3 Mar 2024 18:38 UTC

I am wanting to clone sda to sdb1 using dd:

dd if=/dev/sdb of=/dev/sdb bs=64k conv=noerror, sync

but I get an error saying
dd: invalid conversion

What am I doing wrong?
Thanks

Re: Clone a disk problem

<l4jvi8Fkti7U2@mid.individual.net>

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From: rob@nospam.com (RobH)
Newsgroups: alt.os.linux.mint
Subject: Re: Clone a disk problem
Date: Sun, 3 Mar 2024 18:58:15 +0000
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In-Reply-To: <l4juddFkti7U1@mid.individual.net>
 by: RobH - Sun, 3 Mar 2024 18:58 UTC

On 03/03/2024 18:38, RobH wrote:
> I am wanting to clone sda to sdb1 using dd:
>
> dd if=/dev/sdb of=/dev/sdb bs=64k conv=noerror, sync
>
> but I get an error saying
> dd: invalid conversion
>
> What am I doing wrong?
> Thanks

Update:
I found what it was: a space between conv=noerror, and sync.
After removing the space , it works fine.

Re: Clone a disk problem

<20240305185202.8989ecd33c8ebd266444adf3@gmail.com>

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From: pinnerite@gmail.com (pinnerite)
Newsgroups: alt.os.linux.mint
Subject: Re: Clone a disk problem
Date: Tue, 5 Mar 2024 18:52:02 +0000
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 by: pinnerite - Tue, 5 Mar 2024 18:52 UTC

On Sun, 3 Mar 2024 18:58:15 +0000
RobH <rob@nospam.com> wrote:

> On 03/03/2024 18:38, RobH wrote:
> > I am wanting to clone sda to sdb1 using dd:
> >
> > dd if=/dev/sdb of=/dev/sdb bs=64k conv=noerror, sync
> >
> > but I get an error saying
> > dd: invalid conversion
> >
> > What am I doing wrong?
> > Thanks
>
> Update:
> I found what it was: a space between conv=noerror, and sync.
> After removing the space , it works fine.

There was a lot more than that:

dd if=/dev/sda of=/dev/sdb1 bs=64k conv=noerror

I always add status=progress if it is to be a long job.
I have never seen ..., sync
What does that do?

Re: Clone a disk problem

<sA9svG.3Fn@yahoo.com>

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From: jackstrangio@yahoo.com (Jack Strangio)
Newsgroups: alt.os.linux.mint
Subject: Re: Clone a disk problem
Date: Wed, 13 Mar 2024 05:07:58 -0000 (UTC)
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 by: Jack Strangio - Wed, 13 Mar 2024 05:07 UTC

pinnerite <pinnerite@gmail.com> writes:
> There was a lot more than that:
>
> dd if=/dev/sda of=/dev/sdb1 bs=64k conv=noerror
>

Did you really use the raw device for a whole hard drive (/dev/sda) and
copy that to a partition on the second hard drive (/dev/sdb1)??

Or was it /dev/sda to /dev/sdb ?

Or /dev/sda1 to /dev/sdb1 ?

Obviously 'dd' doesn't care in the least what you think you want, it will
go ahead and do it exactly as you have commanded. But, like most people,
I have personally destroyed more filesystem than I can shake a stick at, and
I try to be extremely careful over situations like this.

Regards,

Jack
--
Why do meteorites always land in craters?

Re: Clone a disk problem

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From: pinnerite@gmail.com (pinnerite)
Newsgroups: alt.os.linux.mint
Subject: Re: Clone a disk problem
Date: Wed, 13 Mar 2024 17:41:40 +0000
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 by: pinnerite - Wed, 13 Mar 2024 17:41 UTC

On Wed, 13 Mar 2024 05:07:58 -0000 (UTC)
Jack Strangio <jackstrangio@yahoo.com> wrote:

> pinnerite <pinnerite@gmail.com> writes:
> > There was a lot more than that:
> >
> > dd if=/dev/sda of=/dev/sdb1 bs=64k conv=noerror
> >
>
> Did you really use the raw device for a whole hard drive (/dev/sda) and
> copy that to a partition on the second hard drive (/dev/sdb1)??
>
> Or was it /dev/sda to /dev/sdb ?
>
> Or /dev/sda1 to /dev/sdb1 ?

I was replying to what the op wrote.

>
>
> Obviously 'dd' doesn't care in the least what you think you want, it will
> go ahead and do it exactly as you have commanded. But, like most people,
> I have personally destroyed more filesystem than I can shake a stick at, and
> I try to be extremely careful over situations like this.
>
> Regards,
>
> Jack
> --
> Why do meteorites always land in craters?
>

--
Linux Mint 21.3 kernel version 5.15.0-100-generic Cinnamon 6.0.4
AMD Phenom II x4 955 CPU 16Gb Dram 2TB Barracuda

Re: Clone a disk problem

<usst92$13jd1$1@dont-email.me>

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From: nospam@needed.invalid (Paul)
Newsgroups: alt.os.linux.mint
Subject: Re: Clone a disk problem
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 by: Paul - Wed, 13 Mar 2024 19:02 UTC

On 3/13/2024 1:41 PM, pinnerite wrote:
> On Wed, 13 Mar 2024 05:07:58 -0000 (UTC)
> Jack Strangio <jackstrangio@yahoo.com> wrote:
>
>> pinnerite <pinnerite@gmail.com> writes:
>>> There was a lot more than that:
>>>
>>> dd if=/dev/sda of=/dev/sdb1 bs=64k conv=noerror
>>>
>>
>> Did you really use the raw device for a whole hard drive (/dev/sda) and
>> copy that to a partition on the second hard drive (/dev/sdb1)??
>>
>> Or was it /dev/sda to /dev/sdb ?
>>
>> Or /dev/sda1 to /dev/sdb1 ?
>
> I was replying to what the op wrote.

OP:

dd if=/dev/sdb of=/dev/sdb bs=64k conv=noerror, sync # "My eyes, the goggles do nothing"

You:

dd if=/dev/sda of=/dev/sdb1 bs=64k conv=noerror # "Here, splash this in your face"
^ ^
| |
| |

That extra "1" sneaking in there, is not a good thing.

Paul

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