[CentOS] resize lvm

Wes James comptekki at me.com
Fri May 6 18:19:35 UTC 2016

I have a laptop that I put centos 7 on and I started out with a 30gig partition.  I resized the other part of the disk to allow more space for centos.  I then created an unformated partition in the available space,  ran

pvcreate /dev/sda4

vgextend lvname /dev/sda4

lvextend -L 184.46G /dev/lvname/root

but when I run:

sudo resize2fs /dev/lvname/root

I get:

resize2fs: Bad magic number in super-block while trying to open /dev/lvname/root
Couldn't find valid filesystem superblock.

How do I resize the volume?



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