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SD card clone using dd command

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http://askubuntu.com – I am trying to clone SD card which may contain number of partitions, some of them Ubuntu cannot recognize. Generally, I want to clone the whole volume, not only some partition. So, I mount SD card and see in the Log viewer something like this: kernel: [ 262.025221] sdc: sdc1 sdc2 alex@u120432:~$ ls /dev/sdc* /dev/sdc /dev/sdc1 /dev/sdc2 Since I want to copy the whole disk, I execute: dd if=/dev/sdc of=sdimage.img bs=4M File sdimage.img, 7.9 GB (7,944,011,776 bytes) is created (SD card is 8 GB). Now I mount another SD card and execute: dd if=sdimage.img of=/dev/sdc bs=4M The (HowTos)