Languages/shell/mount-o
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| + | = Mounting a filesystem image for editing = | ||
| + | <source lang='bash'> | ||
| + | # 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 | ||
| + | </source> | ||
| + | |||
| + | = Unmounting = | ||
| + | <source lang='bash'> | ||
| + | sudo umount /tmp/toto | ||
| + | </source> | ||
| + | |||
| + | = Create an ext4 image from a sdcard = | ||
| + | <source lang='bash'> | ||
| + | sudo dd if=/dev/sdcard of=/tmp/image.bin | ||
| + | </source> | ||
| + | |||
| + | = Restore the sdcard = | ||
| + | <source lang='bash'> | ||
| + | sudo dd if=/tmp/image.bin of=/dev/sdcard | ||
| + | </source> | ||
| + | |||
| + | = Creating an empty disk image = | ||
| + | <source lang='bash'> | ||
| + | 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 ! | ||
| + | </source> | ||
Revision as of 16:49, 24 February 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 disk 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 !
