Since I moved from hdd/MST/Partitions to a more modern ssd/GPT/LVM2 setup, it's harder to use Clonezilla.
Saving LV's, even when spanning multiple disks, seems to work fine. However;
cnvt-ocs-dev to convert the image(???). The image works fine as is (as illustrated below).I'm not sure why Clonezilla won't show actual LV names from images or existing LV names to restore to when they are available, because when booting from a live USB (e.g. Linux Mint or Ubuntu) without doing anything the LV's are already detected and placed under /dev/mapper/ e.g.: /dev/mapper/vg--mint-root.
So if I want to restore a multi-device LV, I need to do this using a live Ubuntu USB rather than Clonezilla:
cat mint-vg-root.ext4-ptcl-img.gz.* | gzip -d -c | partclone.ext4 -r -o /dev/mapper/mint--vg-root
In this case the LV spans two devices. Restored correctly.
Observed using alternative testing 20190903-eoan.
Thanks for your feedback. Yes, so far the support is based on the partition, not LV. Will think about how to improve that iin the future.
Steven