Difference between revisions of "Qcow2"
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↑ https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/interop/qcow2.txt;hb=HEAD
↑ https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/interop/qcow2.txt;hb=HEAD
↑ https://www.berrange.com/posts/2017/02/10/the-surprisingly-complicated-world-of-disk-image-sizes/
Line 17: | Line 17: | ||
* <code>[[qemu-img convert]]</code> | * <code>[[qemu-img convert]]</code> | ||
* [[qemu-system-x86_64]] | * [[qemu-system-x86_64]] | ||
− | * <code>[[guestmount]]</code> | + | * <code>[[guestmount]]</code> command to mount <code>[[qcow2]]</code> images |
* [[.raw]] | * [[.raw]] | ||
Revision as of 10:20, 7 October 2020
wikipedia:qcow2[1] is a file format for disk image files used by QEMU. qcow2 support AES and multiple snapshots.
A qcow2 image file is organized in units of constant size, which are called (host) clusters. A cluster is the unit in which all allocations are done, both for actual guest data and for image metadata.[2]
qcow2 internal snapshots are best avoided in favour of extenal snapshots. [3]
Activities
- Extend LVM on qcow2 images
- Read about
raw
files andqcow2
differences: https://www.berrange.com/posts/2017/02/10/the-surprisingly-complicated-world-of-disk-image-sizes/
Related terms
qemu-img info
qemu-img create
qemu-img convert
- qemu-system-x86_64
guestmount
command to mountqcow2
images- .raw
See also
qemu-img
:qemu-img info
,qemu-img check
,qemu-img resize
,qemu-img create
, qcow2,qemu-img rebase
,qemu-img convert
,qemu-img commit
,qemu-img ammend
- KVM, Installation, QEMU,
virsh
,virtinst
,libguestfs-tools
, libvirt, qemu, Red Hat Virtualization (RHV), MacVTap, Virtio, oVirt, KVM services, KVM networking, KVM graphics, CPU, KVM on ARM
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