From: Vitsky.kasperski@gmail.com
On 16.08.2024 15:17, The Natural Philosopher wrote:
> On 16/08/2024 13:46, Ahem A Rivet's Shot wrote:
>> On Fri, 16 Aug 2024 11:04:26 +0200
>> Jesper wrote:
>>
>>> raspberrypi@raspberrypi:~ $ sudo dd if=/dev/sda of=/nvme0n1 bs=1b
>>> dd: error writing '/nvme0n1': No space left on device
>>
>> Your command is missing a /dev it should be:
>>
>> sudo dd if=/dev/sda of=/dev/nvme0n1 bs=1b
>
> No. Again 2 things wroing.
>
> /dev/nvme0 is the RAW device.
No, it did not like the 'nvmeO'. Here is what it said:
raspberrypi@raspberrypi:~ $ sudo dd if=/dev/sda of=/dev/nvme0
dd: skriver til '/dev/nvme0': Ugyldig argument
1+0 records in
0+0 records out
0 bytes copied, 0,000298314 s, 0,0 kB/s
'Ugyldig argument' is norwegian for 'illegal argument.
But I managed at last to make the copy like this:
raspberrypi@raspberrypi:~ $ sudo dd if=/dev/sda of=/dev/nvme0n1
500118192+0 records in
500118192+0 records out
256060514304 bytes (256 GB, 238 GiB) copied, 2157,41 s, 119 MB/s
raspberrypi@raspberrypi:~ $
After that I shut down the raspi, removed SD-card and SSD. Applied
power, and it booted from the nvme, and I am running on that while
writing this.
Thanks for all patient help from you all :-)
Best regards
> bs=1M is correct for decent transfer rate
>
>
>>
>> The "no space on device" error comes because without the /dev dd is
>> attempting to write a file called nvme0n1 in / but since / runs out of
>> space before it finishes the file is never closed and thus no directory
>> entry is written which is why yuou never see it.
>>
>> Also I don't think bs=1b is likely to be a good blocksize (1
>> byte). If the version of dd you're using doesn't support bs=1m then try
>> bs=1024k or be=1048576. The idea is to get it to use the largest block
>> size
>> (and thus writes) that the data path will support.
>>
> bs=1M is sensible.
>
> 1Mib.
>
--
Jesper
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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