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Date: Tue, 27 Dec 2016 19:08:44 +0100
From: Polytropon <freebsd@edvax.de>
To: swjatoslaw gerus <milstar2@eml.cc>
Cc: freebsd-questions@freebsd.org
Subject: Re: Fwd: dd -bs=BYTES  read and write up to BYTES at a time  
 system -invalid  number 1m   #### dd
 if=FreeBSD-11-RELEASE-amd64-memstick.img of=/dev/sdb1 bs=1M  conv=sync
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On Tue, 27 Dec 2016 13:18:33 +0100, swjatoslaw gerus wrote:
> 
> 
> 
> dd  help  ....dd -bs=BYTES  read and write up to BYTES at a time 
> 
>   system -invalid  number 1m   ####

On systems that do not support size suffixes (such as
Linux dd might), you need to "manually multiply", for
example:

	dd if=<image> of=<device> bs=1024k

Or, if the "k" suffix isn't supported,

	dd if=<image> of=<device> bs=1048576

Note that this unit has to be converted as 2^10 = 2014
(instead of 10^3 = 1000). See "man dd" to check what
your version of dd implements.



> fdisk -l   
> system  dev/sdb1      (new Sandisk ultrafit 16 gb) 
> 
>  dd if=FreeBSD-11-RELEASE-amd64-memstick.img of=/dev/sdb1 bs=1M 
>  conv=sync
> system -invalid  number 1m   ####

The command is correct, just adjust the bs= parameter accordingly.





-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...