hi,usually loopback device can be used according to the following step.
dd if=/dev/zero of=plaintext.img bs=1M count=20
Second, associate the newly created le with a loopback device:
losetup /dev/loop0 plaintext.img
Next, create a lesystem within the le, using the newly associated loop device:
mkfs -t ext2 /dev/loop0
Finally, mount the lesystem and use it as if it were any other mounted volume:
but i want to create a new file system such as: mkmyfs /dev/loop0,
but I don't know how to controll /dev/loop in applictions to implement mkmyfs, any hint welcome!
TIA!
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