disk image
A file that holds the contents of a whole disk, used by virtual machines or as a copy of a real device.
In more detail
Raw images are simple and fast; qcow2 images grow as they fill and support snapshots. qemu-img info shows an image's format and sizes.
Related terms
- QEMU — Quick Emulator: the program that runs virtual machines on Linux, using KVM for speed when the processor supports it.
Taught in
- Which RAID, Which File System? Disks That Fail And Inodes That Run Out — CompTIA Linux+ (XK0-006) Exam Prep
- Friday's Backup, Monday's Restore: Incrementals, Images And Compressed Logs — CompTIA Linux+ (XK0-006) Exam Prep
- Twelve Old Servers, Two New Hosts: KVM, QEMU, libvirt And Disk Images — CompTIA Linux+ (XK0-006) Exam Prep
- Works On My Laptop: Images, Containers, Volumes And Networks — CompTIA Linux+ (XK0-006) Exam Prep
- No Space Left, Says The Disk With Room To Spare: Inodes, Held Files, Corruption And Repair — CompTIA Linux+ (XK0-006) Exam Prep
- Virtual Machines With libvirt: XML, virsh And Autostart — Linux Foundation Certified System Administrator (LFCS) Exam Prep