Qemu-img

Qcow2 Disc create

• qemu-img create -f qcow2 greta.qcow2 10G

Formatting 'greta.qcow2', fmt=qcow2 size=10737418240 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16

Qcow2 Disc check

• qemu-img check greta.qcow2

No errors were found on the image.
Image end offset: 262144

• qemu-img info greta.qcow2

Raw Disc create

• qemu-img create heidi.raw 10G

Formatting 'heidi.raw', fmt=raw size=10737418240

• qemu-img info heidi.raw

image: heidi.raw
file format: raw
virtual size: 10G (10737418240 bytes)
disk size: 0

Qcow2 Disc info

image: greta.qcow2
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 196K
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: false
    refcount bits: 16
    corrupt: false