lvm2: when will the bootloader area on the PV header be used?

Eric:

Hello, all partitions on my laptop are on LVM. I expect the boot loader area is on one of the root LV's PVs, but it seems not:

11:14:06 PM - EricRen: $ sudo pvs -o+lv_name,pv_ba_start,pv_ba_size
11:14:06 PM - EricRen: PV         VG   Fmt  Attr PSize   PFree   LV   BA start BA size
11:14:06 PM - EricRen: /dev/sda1  vg   lvm2 a--  101.93g      0  root       0       0
11:14:06 PM - EricRen:   /dev/sda1  vg   lvm2 a--  101.93g      0  home       0       0
11:14:06 PM - EricRen:   /dev/sda2  vg   lvm2 a--  100.09g   5.09g root       0       0
11:14:06 PM - EricRen:   /dev/sda2  vg   lvm2 a--  100.09g   5.09g            0       0
11:14:06 PM - EricRen:   /dev/sda3  vg   lvm2 a--  113.38g  11.31g home       0       0
11:14:06 PM - EricRen:   /dev/sda3  vg   lvm2 a--  113.38g  11.31g home       0       0
11:14:06 PM - EricRen:   /dev/sda3  vg   lvm2 a--  113.38g  11.31g swap       0       0
11:14:06 PM - EricRen:   /dev/sda3  vg   lvm2 a--  113.38g  11.31g home       0       0

So, when will the bootloader area on the PV header be used?

kabi:

once we add better support for grub, meanwhile there is no extended support for dracut to boot from snapshot... yes - it's for plannned storing of grub data there, but there is not yet existing support from grub side...