BBS:      TELESC.NET.BR
Assunto:  Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B?
De:       paul lee
Data:     Mon, 9 Mar 2026 18:55:05 -0700
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 CG> Does a bootable USB stick for a Pi 4B have the same format as a
 CG> bootable SD card?  I.e. can I just use dd to copy one to the other
 CG> (not on the Pi itself) and expect it to work?

While I don't understand the 'format' bit, yes you can absolutely dd a USB to and SD for a Pi image...

dd if=/dev/xxx of=/dev/xxx

(There are other options you can use that I prefer;)

dd if=/dev/xxx of=/dev/xxx bs=4M status=progress conv=fsync 

Find USB/SD devices:
lsblk

Verify write after dd:
sync



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