[jjstorm]

Originally Posted by J65nko

Because I have disk space enough, I only have used cloning. I have no idea how sharing would protect you from messing up a cloned install. Maybe some disk snapshot feature?

If you want to save disk space you could compress the original image with xz.

 # ls -lh
total 149G
-rw------- 1 root         root  20G nov 15 05:47 FreeBSD-10.1-release.img
-rw------- 1 root         root 8,1G nov  7 05:11 FreeBSD-amd64-9.3-clone.img
-rw------- 1 root         root 8,0G nov 12 01:18 FreeBSD-amd64-9.3.img
-rw------- 1 root         root 8,0G nov 12 07:52 NetBSD-6.1.5.img
-rw------- 1 root         root 8,0G nov 18 03:27 OBSD-linuxtype-current-nov-3.img
-rw------- 1 root         root  10G nov 22 02:20 OpenBSD56-current.img
-rw------- 1 root         root  15G nov 22 02:26 OpenBSD56-current-nov18a.img
-rw------- 1 root         root 152M nov 20 00:30 OpenBSD56-current-nov18a.img.xz
-rw------- 1 root         root  15G nov 19 05:40 OpenBSD56-current-nov18.img
-rw------- 1 root         root 4,0G nov 15 23:41 OpenBSD-current-nov11.img
-rw------- 1 root         root  16G nov 16 02:32 OpenBSD-current-nov15.img
-rw------- 1 root         root  12G nov 19 05:33 OpenBSD-current-nov17.img
-rw------- 1 root         root 8,0G nov 22 04:24 OpenBSD-current-nov-3.img
-rw------- 1 root         root  15G nov 21 04:58 OpenBSD-release-5.6.img
-rw------- 1 libvirt-qemu kvm   20G nov 24 01:01 OpenBSD-test.img

Although it took quite a long time to compress that image, the compression is extraordinaire

If I can compress to 1/10th the size as you show, then that may be possible.