[root@localhost /]# sudo lvs
  LV      VG        Attr   LSize  Origin Snap%  Move Log Copy%  Convert
  lv_home vg_shaipc -wi-a- 34.12g
  lv_root vg_shaipc -wi-a- 50.00g
  lv_swap vg_shaipc -wi-a-  3.94g


root@localhost /]# grub2-install /dev/sda
/sbin/grub2-probe: error: cannot find a GRUB drive for /dev/mapper/live-rw.  Check your device.map.
Auto-detection of a filesystem of /dev/mapper/live-rw failed.
Try with --recheck.
If the problem persists please report this together with the output of "/sbin/grub2-probe --device-map="/boot/grub2/device.map" --target=fs -v /boot/grub2" to <bug-grub@gnu.org>