Description of problem: [root@hayes-02 ~]# lvcreate --yes --type linear -n vdo_pool -L 5G vdo_sanity Logical volume "vdo_pool" created. [root@hayes-02 ~]# lvconvert --yes --type vdo-pool -n vdo_lv --vdosettings 'vdo_check_point_frequency=1' -V 20G vdo_sanity/vdo_pool lvconvert: unrecognized option '--vdosettings' Error during parsing of command line. [root@hayes-02 ~]# lvconvert --yes --type vdo-pool -n vdo_lv -V 20G vdo_sanity/vdo_pool WARNING: Converting logical volume vdo_sanity/vdo_pool to VDO pool volume with formating. THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.) The VDO volume can address 2 GB in 1 data slab. It can grow to address at most 16 TB of physical storage in 8192 slabs. If a larger maximum size might be needed, use bigger slabs. Logical volume "vdo_lv" created. Converted vdo_sanity/vdo_pool to VDO pool volume and created virtual vdo_sanity/vdo_lv VDO volume. [root@hayes-02 ~]# lvconvert --vdosettings 'vdo_check_point_frequency=1' vdo_sanity/vdo_pool lvconvert: unrecognized option '--vdosettings' Error during parsing of command line. "Comment #15 'vdo_check_point_frequency' is problematic - it's 'gone' from current version of vdoformat tooling - so here lvm2 will need to 'ignore' any changes to this setting other then value 0 - so this is current bug in lvm2 handling that needs a fix." lvm2-2.03.14-4.el8 BUILT: Wed Jun 15 17:14:34 CDT 2022 lvm2-libs-2.03.14-4.el8 BUILT: Wed Jun 15 17:14:34 CDT 2022