qemu-img resize qcow2 --shrink 4G
2022-09-091、qemu-img resize CentOS-Stream-ec2-8-20220125.1.x86_64.qcow2 --shrink 4G
2、qemu-img resize CentOS-Stream-ec2-8-20220125.1.x86_64.qcow2 +10G
3、qemu-img info CentOS-Stream-ec2-8-20220125.1.x86_64.qcow2
image: CentOS-Stream-ec2-8-20220125.1.x86_64.qcow2
file format: qcow2
virtual size: 4 GiB (4294967296 bytes)
disk size: 1.07 GiB
cluster_size: 65536
Format specific information:
compat: 0.10
compression type: zlib
refcount bits: 16
4、qemu-img info CentOS-Stream-GenericCloud-9-20220829.0.x86_64.qcow2
image: CentOS-Stream-GenericCloud-9-20220829.0.x86_64.qcow2
file format: qcow2
virtual size: 10 GiB (10737418240 bytes)
disk size: 978 MiB
cluster_size: 65536
Format specific information:
compat: 0.10
compression type: zlib
refcount bits: 16