Jordan Savant # Software Engineer

I used this when I expanded the EBS volume of an Ubuntu machine

# check the size of the drives before expanding
$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           799M   81M  718M  11% /run
/dev/xvda1      7.7G  7.7G   39M 100% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs           799M     0  799M   0% /run/user/1001

# /dev/xvda1 is what we care about
# Get further information
$ sudo file -s /dev/xvda1
/dev/xvda1: Linux rev 1.0 ext4 filesystem data, UUID=5c615711-516f-4eb1-bca9-592288a14b59, volume name "cloudimg-rootfs" (needs journal recovery) (extents) (large files) (huge files)

# EXPAND THE EBS HERE
# After complete you can see the size of the hard drive is larger
$ lsblk
NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda    202:0    0  16G  0 disk
└─xvda1 202:1    0   8G  0 part /

# Partition still needs to be grown
$ sudo growpart /dev/xvda 1
CHANGED: partition=1 start=2048 old: size=16775135 end=16777183 new: size=33552351,end=33554399

# Partition expanded but Filesystem has not been
$ lsblk
NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda    202:0    0  16G  0 disk
└─xvda1 202:1    0  16G  0 part /

$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           799M   81M  718M  11% /run
/dev/xvda1      7.7G  7.7G   39M 100% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs           799M     0  799M   0% /run/user/1001

# Fill partition with space
$ sudo resize2fs /dev/xvda1
resize2fs 1.42.13 (17-May-2015)
Filesystem at /dev/xvda1 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/xvda1 is now 4194043 (4k) blocks long.

# DONE
s$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           799M   81M  718M  11% /run
/dev/xvda1       16G  7.7G  7.8G  50% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs           799M     0  799M   0% /run/user/1001