diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/files/688')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/files/688 | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/files/688 b/results/classifier/deepseek-2-tmp/output/files/688 deleted file mode 100644 index 6e74f6503..000000000 --- a/results/classifier/deepseek-2-tmp/output/files/688 +++ /dev/null @@ -1,48 +0,0 @@ - -Shrinking an image with qemu-img does not reduce image file size -Description of problem: -I have a macOS 10.9 VM using a qcow2 image that was 151GB. The image was originally converted from a VMware image with: -``` -qemu-img convert macOS-10.9.vmdk -O qcow2 -o preallocation=falloc macOS-10.9.qcow2 -``` -This resulted in `macOS-10.9.qcow2` being 151GB big: -``` -$ du -h macOS-10.9.qcow2 -151G macOS-10.9.qcow2 -``` -After reducing the filesystem size from within macOS to 25GB with DiskUtil, I shut down the VM and resized the image to 30GB with: -``` -qemu-img resize -f qcow2 --shrink macOS-10.9.qcow2 30G -``` -This succeeded. However, the file still consumes 151GB of space: -``` -$ du -h macOS-10.9.qcow2 -151G macOS-10.9.qcow2 -``` -Even though `qemu-img info` shows: -``` -$ qemu-img info macOS-10.9.qcow2 -image: macOS-10.9.qcow2 -file format: qcow2 -virtual size: 30 GiB (32212254720 bytes) -disk size: 30 GiB -cluster_size: 65536 -Format specific information: - compat: 1.1 - compression type: zlib - lazy refcounts: false - refcount bits: 16 - corrupt: false - extended l2: false -``` -The size inside the VM is also reported as being 30GB. - -The whole point of resizing that image was to free up disk space on the host. But this doesn't seem to be happening. - -My filesystem is ext4. -Steps to reproduce: -1. Create a vmdk image with `qemu-img create -f vmdk test.vmdk 5G` -2. Convert the vmdk image to qcow2 with `qemu-img convert test.vmdk -O qcow2 -o preallocation=falloc test.qcow2` -3. Shrink the new image with `qemu-img resize -f qcow2 --shrink test.qcow2 3G` - -The resulting `test.qcow2` file should be 3GB, but it's not. It's 5GB. |