How to increase AWS EBS NVME size

Prerequesities:

  1. You found the partition you want to extend and there is just one partition on this particular NVME: /dev/nvme0n1p1 but not /dev/nvme0n1p2. Note the mount location: /
df
Filesystem     1K-blocks     Used Available Use% Mounted on
...
/dev/nvme0n1p1 _________ ________  ________  99% /
  1. You run lsblk and it confirms a single partition under the volume nvme0n1
lsblk
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
nvme0n1     259:2    0   400G  0 disk
└─nvme0n1p1 259:3    0   400G  0 part /

Than you first extend your volume through AWS console and then run next code block.

Single place script:

# /dev/nvme0n1 - volume name, 1 - partition index
sudo growpart /dev/nvme0n1 1 
# block for xfs
# / - mount from above. Command will safely fail for non xfs
sudo xfs_growfs -d / 
# block for ext4
# /dev/nvme0n1p1 - partition you would like to extend
sudo resize2fs /dev/nvme0n1p1

Assembled from this resource: Extend a Linux file system after resizing a volume


resize2fs didn't work for me, so I used this instead:

xfs_growfs /dev/nvme0n1p1

resize2fs gave me this error when I used it:

[root@ip-1-2-3-4 ~]# resize2fs /dev/nvme0n1p1
resize2fs 1.42.9 (28-Dec-2013)
resize2fs: Bad magic number in super-block while trying to open /dev/nvme0n1p1
Couldn't find valid filesystem superblock.

I noticed the disk was using xfs under /etc/fstab:

UUID=4cbf4a19-1fba-4027-bf92-xxxxxxxxxxxx     /           xfs    defaults,noatime  1   1

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/recognize-expanded-volume-linux.html

growpart [OPTIONS] DISK PARTITION-NUMBER

$ lsblk
NAME          MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1       259:0    0  16G  0 disk 
├─nvme0n1p1   259:1    0   8G  0 part /
└─nvme0n1p128 259:2    0   1M  0 part

So to grow the partition, we use the diskname nvme0n1 (see disk under TYPE) and desired partition is 1

sudo growpart /dev/nvme0n1 1

And then to extend the fs - resize2fs device [ size ]

(device refers to the location of the target filesystem)

$ df -h
Filesystem                                 Size  Used Avail Use% Mounted on
devtmpfs                                   470M   52K  470M   1% /dev
tmpfs                                      480M     0  480M   0% /dev/shm
/dev/nvme0n1p1                             7.8G  7.7G  3.1M 100% /

So to extend the fs, we use the device name /dev/nvme01np1:

sudo resize2fs /dev/nvme0n1p1

Voila!

$ df -h
Filesystem                                 Size  Used Avail Use% Mounted on
devtmpfs                                   470M   52K  470M   1% /dev
tmpfs                                      480M     0  480M   0% /dev/shm
/dev/nvme0n1p1                              16G  7.7G  7.9G  50% /

Tags:

Nvme

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