LVM resizing

lvm_resize.sh

exit 1 # DONT RUN DIRECTLY

# Original system: "/" and "/local/mnt" with 20 GB and 2000 GB
# Target: Increase "/" to 200 GB

# Do reboot since some random processes keep accessing /local/mnt
# Run following as root as soon as you reboot
 
df -h # Note down / and /local/mnt partition sizes
umount /local/mnt
lvresize -L -180G     /dev/vg00/lv_local_mnt -r
lvextend -l +100%FREE /dev/vg00/rootvol      -r
mount /local/mnt
df -h # Check if the partitions have changed.