Ubuntu 18.04 (AWS) ext4 FS

Here’s how to add a new Volume to an existing ec2 and make it available for your Linux OS.

After on AWS you attach a volume to an ec2 instance, do the following to insert it into your filesystem

lsblk

is needed to get your device id like /dev/xvdf

mkfs.ext4 /dev/xvdf

mkdir /mnt2

mount /dev/xvdf /mnt2

Don’t forget to alter your /etc/fstab to make this change persistent

LABEL=cloudimg-rootfs    /    ext4   defaults,discard    0 0

/dev/xvdb    /mnt    ext4    defaults    0   0

/dev/xvdf    /mnt2   ext4    defaults    0   0

If you need to resize your volume simply do so on the aws console and wait for the resize to finish. Then to make the new space usable, do

resize2fs /dev/xvdf