SV: Re: Clone SD card -

[birger]

Remember that you cannot trust the size of sd cards. If you need to make a backup of a card and ensure the image will fit on a card of the same claimed size you should shrink the last partition on the device a bit before backing up. Otherwise you can end up with a damaged file system.

Sendt fra min Sony Xperia™-smarttelefon

---- Rick Stevens skrev ----

>On 06/08/2015 09:59 AM, Bob Goodwin - Zuni, Virginia, USA wrote:
>> Can someone tell me the proper command to clone an SD card?
>>
>> I am working with the RPI 2B and I would like to store a backup on my
>> hard drive and be able to write it back to another SD card. I may not be
>> asking Google the right things but it hasn't helped ...
>
>You could use something like Clonezilla. On the flip side, to get an
>EXACT image, as root:
>
>	# dd if=/dev/sdX of=/place/to/save/image.img bs=1M
>
>where "/dev/sdX" is the raw device of the WHOLE SD card (NOT a partition
>such as "/dev/sda3").
>
>To put on a new, identical SD card, as root:
>
>	# dd if=/place/to/save/image.img of=/dev/sdaX bs=1M
>
>again where "/dev/sdX" is the raw device of the WHOLE SD card. "dd" is
>your friend.
>
>BTW, this should be virtually identical to the way you created the
>bootable SD card in the beginning, not so? :-)
>----------------------------------------------------------------------
>- Rick Stevens, Systems Engineer, AllDigital    ricks at alldigital.com -
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