They identify the LVM as mounted; which indicates that there is an associated FS. You'll wanna make sure that unmount first, and then resize the FS as well. This can easily be done by adding the additional -r switch in the command: lvextend -L +5G -r [/dev/vg/lvm] If you forget this step, you can also run resize2fs or xfs_growfs

https://access.redhat.com/solutions/24770

--assume new disk is src pvcreate /dev/sdc vgextend test0 /dev/sdc vgs lvs lvextend -r -l +100%FREE /dev/test0/lvtestvolume --in above command because we are going to use 100% of 5GB disk we specified +100%FREE. Below two commands i am adding however i didn't have to use the because while using -r in above command volume is already resized and automatically fle system type is matched to that of the existing volume. xfs_growfs /dev/test0/lvtestvolume -----in case of xfs file system resize2fs /dev/test0/lvtestvolume -----in case of ext2, 3 or 4 running above command will produce following: The file system is alread ________ blocks long. Nothing to do! --run df -Th command to check size.

Assume the /dev/sda is 5GB #parted -s /dev/sda mklabel gpt mkpart primary 0% 100% #parted -s /dev/sda set 1 lvm on # partprobe # vgextend test0 /dev/sda1 # lvextend -r -l 100%FREE /dev/test0/lvtestvolume For xfs file system: # xfs_growfs /data // the mount point For ext file system: # resize2fs /dev/test0/lvtestvolume // the lv path #df -h /data

$ fdisk /dev/sda # create a partition of that free 5G space # change it's type to lvm $ partprobe $ vgextent test0 /dev/sdaX $ lvextend -r -l 100%FREE -n dev/test0/lvtestvolume test0

[root@station ~]# lvextend --help lvextend - Add space to a logical volume Extend an LV by a specified size. lvextend -L|--size [+]Size[m|UNIT] LV [ -l|--extents [+]Number[PERCENT] ] [ -r|--resizefs ] [ -i|--stripes Number ] [ -I|--stripesize Size[k|UNIT] ] [ --poolmetadatasize [+]Size[m|UNIT] ] [ COMMON_OPTIONS ] [ PV ... ]