Question

18

How do I create a backup image of an SD card?

rated 0 times [ 18] [ 0] / answers: 1 / hits: 37711 / 1 Year ago, thu, december 1, 2022, 1:40:05

I have to copy my SD card to my hard-drive. I know that I have to mount and unmount it, but the following line doesn't work:

dd if=/media/oneiric of=~/sd-card-copy.img

That was my first try, but then I found out that I have to unmount my card and select /dev/sdX. The problem is that the command fdisk -l isn't showing anything. Nothing happens and therefore I can't copy my files.

How can I fix this?

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skipu

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2 Years ago

answered 1 Year ago ingsta · Accepted Answer

Run mount | grep "/media/oneiric". This will show the sdcard device (/dev/sdXX). Then run:

sudo umount /media/oneiric

sudo dd if=/dev/sdXX of=~/sd-card-copy.img