i have centOS running on hyper -v , i expanded the virtual hard disk in hyper-v but i need help to expand  centos_home partition.i need a way to increase the size of the sda3 since all the free space allocated on sda root without losing my  data .this is the lsblk and df - lcommand :Linux is my weakness please advise what need to be done without losing data
expanding Centos_home
linux;centos
As you use LVM it's not need to change the partitions. Moreover you use virtualization so the steps are:Add new harddisk to the virtual machineReboot the machineCreate PV on the new disk pvcreate /dev/sdb (suppose /dev/sdb isyour new disk)Add this new volume to the VG vgextend centos /dev/sdbExtend the home LV lvresize -L<amount of space you want to add>/dev/mapper/centos-homeExtend the filesystem /home resize2fs /dev/mapper/centos-homeP.S. If you want to use the space from root LV you should restart with some live CD because shrink process need to have LV to be unmounted