Notepad:KVM: Difference between revisions
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→KVM: Shrink QCOW2 |
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qemu-img convert -O qcow2 -c input.qcow2 output.qcow2 | qemu-img convert -O qcow2 -c input.qcow2 output.qcow2 | ||
=== Copy a Sparse File === | |||
From [https://serverfault.com/questions/665335/what-is-fastest-way-to-copy-a-sparse-file-what-method-results-in-the-smallest-f Fastest way to copy a sprse file] the end result was : | |||
* cp --sparse=always srcFile dstFile | |||
* dd if=srcFile of=dstFile iflag=direct oflag=direct bs=4M conv=sparse | |||
* rsync --ignore-existing -aS srcFile dstFile | |||
* virt-sparsify srcFile dstFile | |||
{{notepad}} | {{notepad}} | ||
Latest revision as of 22:59, 14 May 2024
From: HowTos | KVM
KVM
Networking - brctl
Start/Start libvirtd
Virtual Shell virsh
Transfer Running Machines
- Windows Transfer a running Windows
- Linux Transfer a running Linux
Expand the size of QCOW2 disk
Expand the size of a QCOW2 disk image
Shrink a QCOW2 disk
Clear the empty space
sudo dd if=/dev/zero of=/zerofile bs=1M sudo rm -f /zerofile
or
sdelete.exe -z C:
Then change the size
qemu-img convert -O qcow2 -c input.qcow2 output.qcow2
Copy a Sparse File
From Fastest way to copy a sprse file the end result was :
- cp --sparse=always srcFile dstFile
- dd if=srcFile of=dstFile iflag=direct oflag=direct bs=4M conv=sparse
- rsync --ignore-existing -aS srcFile dstFile
- virt-sparsify srcFile dstFile
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