Re: Move bookworm system from SSD to NVME

On 16/08/2024 13:46, Ahem A Rivet's Shot wrote:

On Fri, 16 Aug 2024 11:04:26 +0200
Jesper <Vitsky.kasperski@gmail.com> 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.
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.
--
Renewable energy: Expensive solutions that don't work to a problem that doesn't exist instituted by self legalising protection rackets that don't protect,  masquerading as public servants who don't serve the public.