Languages/shell/mount-o
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− | = Creating an empty | + | = Creating an empty partitiion image = |
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dd if=/dev/zero of=/tmp/image.bin bs=1M count=512 # a new 512M image | dd if=/dev/zero of=/tmp/image.bin bs=1M count=512 # a new 512M image | ||
mkfs.ext4 -F /tmp/image.bin # "format" the disk image, works as a normal user ! | mkfs.ext4 -F /tmp/image.bin # "format" the disk image, works as a normal user ! | ||
</source> | </source> |
Revision as of 12:30, 2 March 2015
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Mounting a filesystem image for editing
# Create a destination directory mkdir /tmp/toto # Mount your existing filesystem image into it sudo mount -o loop image.bin /tmp/toto # Now you can see what is in this filesystem image and change the files ;) # Don't forget to umount when you're done
Unmounting
sudo umount /tmp/toto
Create an ext4 image from a sdcard
sudo dd if=/dev/sdcard of=/tmp/image.bin
Restore the sdcard
sudo dd if=/tmp/image.bin of=/dev/sdcard
Creating an empty partitiion image
dd if=/dev/zero of=/tmp/image.bin bs=1M count=512 # a new 512M image mkfs.ext4 -F /tmp/image.bin # "format" the disk image, works as a normal user !