Ext4 VM Images - Ext4

OBSOLETE CONTENTThis wiki has been archived and the content is no longer updated. For latest ext4 documentation, see Kernel Docs. Overview Various ext4 users have a particular use-case for system provisioning where they create a FS image, populate it with whatever files they want, and then want to reduce the image to a minimal one to conserve network bandwidth. At deploy time the minimal image is

[fcicq]

fstrim zerofree (for offline image: fallocate --dig-holes) cp --sparse=always (--reflink=auto?) qemu detect-zeroes