aws-resize-without-restart.txt

$ df -Th
Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  7.7G     0  7.7G   0% /dev
tmpfs          tmpfs     1.6G  776K  1.6G   1% /run
/dev/nvme0n1p1 ext4      291G   64G  228G  22% /            <-- Notice how TYPE is ext4

# Go on AWS and use InstanceID to get to EBS storage, then increase the EBS storage.
# Once done, do the following

# check to make sure EBS upgrade is done with
$ lsblk
NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
loop0         7:0    0 93.9M  1 loop /snap/core/9066
loop1         7:1    0   18M  1 loop /snap/amazon-ssm-agent/1480
loop3         7:3    0   18M  1 loop /snap/amazon-ssm-agent/1566
loop4         7:4    0 93.8M  1 loop /snap/core/8935
nvme0n1     259:0    0  300G  0 disk
└─nvme0n1p1 259:1    0  300G  0 part /                              <---- This SIZE matches the disk SIZE

# Once done, grow the partition with
$ growpart /dev/nvme0n1 1

# Then resize part (works with ext4 file format)
$ resize2fs /dev/nvme0n1p1

# Then resize part (works with xfs file format)
$ xfs_growfs /dev/nvme0n1p1

# Check it is done with 
$ df -Th