What image format is the base image? I just tested with qcow2 format and increased the size from 6g to 10g just fine (of course the file system size remained the same) kvm-img create -b Lucid_64_Base.qcow2 -f qcow2 test_img.qcow2 10G
If you don't specify a format I think raw is used: kvm-img create -b Lucid_64_Base.qcow2 test_img.qcow2 10G Unknown option 'backing_file' qemu-img: Backing file not supported for file format 'raw' Try using kvm-img info [imagefile] to see what format is being used. -- qemu-img baseimage creation doesn't warn for image being smaller https://bugs.launchpad.net/bugs/565659 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs