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kvm virtualization - How to expand EXT4 volume in a centos KVM guest after resizing the guest's LV

I have a fedora KVM host with all the centos VMs in their own LVs. I'd like to expand an EXT4 home volume on a guest that resides on a LV called "thelogicalvolume" in volume group "thevolumegroup"...




On the host I have run:



# sudo lvextend -L +1T thevolumegroup/thelogicalvolume


which results with:



Size of logical volume thevolumegroup/thelogicalvolume changed from 500.00 GiB (128000 extents) to <1.49 TiB (390144 extents).
Logical volume thevolumegroup/thelogicalvolume successfully resized.



Then...



In the guest i tried:



# sudo resize2fs /dev/mapper/centos-home


Which results in:




resize2fs 1.42.9 (28-Dec-2013)
The filesystem is already 116684800 blocks long. Nothing to do!


# df 


on the VM returns:




Filesystem              1K-blocks      Used Available Use% Mounted on
/dev/mapper/centos-root 52403200 1316820 51086380 3% /
devtmpfs 1928348 0 1928348 0% /dev
tmpfs 1940276 0 1940276 0% /dev/shm
tmpfs 1940276 8764 1931512 1% /run
tmpfs 1940276 0 1940276 0% /sys/fs/cgroup
/dev/vda1 1038336 192804 845532 19% /boot
/dev/mapper/centos-home 459282608 435929264 0 100% /home
tmpfs 388056 0 388056 0% /run/user/1000



I can't see the free space from within the VM using fdisk, parted, etc.



On the host I also tried:



sudo virsh blockresize --path /dev/thevolumegroup/thelogicalvolume --size 1T 


No luck.




I have searched for solutions, but have not found one that works with this setup, or I am overlooking something.



Thoughts?

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