Hello there!, i'm khan, and thankyou for visiting this Site, alright lets straight to the point, In this post i want to share how to expand or extend root LVM partition without restarting VM or OS.
Prerequesities
Make sure that program named "parted" is installed, or you can installing it by using this command
Expand root using parted
please make sure you are logged-in as root, and run this command to see your unallocated disk
and make sure your root partition using lvs command
so from 2 data above we know that my root volume are located in /dev/sda3 and in VG Centos, LV root, and the unallocated storage are still in /dev/sda, and we need to move that to /dev/sda3 using this command
then we need to update partition fstab, run this command for updating /etc/fstab
Update PV size (/dev/sda3) using this command
then finally extend the root volume using this command
run lsblk again to verify that success
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