Add space to root partition (using /home space)

On /home partition of one server I've got more HDD than I need. Below are steps to shrink /home partition (I preferred to delete it and then recreate, preserving all content):

If you're not under the root, then first do the below:

1. make (-m) dir and make it home for tmp_usr:
1. useradd -m -d /tmp/temp_usr temp_usr
2. usermod -aG wheel temp_usr
3. id temp_usr
   
4. passwd temp_usr # Z481632z.@
5. ssh temp_usr@needed_server_ip 
6. sudo su -
   

1. df -h
2. ll /home/
3. mkdir /tmp/temp
4. cp -a /home /tmp/temp/ # -a key makes archive
5. ll /tmp/temp/home/
6. umount -fl /home # lazy unmount and undetected NFS unmount
7. lvs # find VolGroupName and /home VG name
8. lvremove /dev/VolGroupName/lv_home
9. pvs # how much free space we have
10. lvextend -L+350G /dev/VolGroupName/lv_root
11. resize2fs /dev/VolGroup/lv_root # or xfs_growfs /dev/VolGroupName/lv_root
12. pvs # how much free space we have
13. lvcreate -L 50G -n lv_home VolGroupName
14. pvs
15. lvs
16. mkfs.ext4 /dev/mapper/VolGroupName-lv_home# or mkfs.xfs /dev/mapper/VolGroupName-lv_home
17. df -h
18. mount -a # mount all existent FS 
19. df -h
20. cp -a /tmp/temp/home/* /home
21. ll /home
22. rm -rf /tmp/temp