amazon web services - EBS Backed Root Partition Too Small - How Do I use full EBS capacity? -

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i started new instance using debian-jessie-amd64-hvm-2015-04-25-23-22-ebs (ami-0d5b6c3d) , 80gb ebs root volume. here's problem seeing:

admin@ip-xxxxxx:~$ df -h filesystem      size  used avail use% mounted on /dev/xvda1      7.8g  1.3g  6.1g  17% / udev             10m     0   10m   0% /dev tmpfs           200m  4.3m  196m   3% /run tmpfs           500m     0  500m   0% /dev/shm tmpfs           5.0m     0  5.0m   0% /run/lock tmpfs           500m     0  500m   0% /sys/fs/cgroup  admin@ip-xxxxxxx:~$ lsblk name    maj:min rm size ro type mountpoint xvda    202:0    0  80g  0 disk └─xvda1 202:1    0   8g  0 part /

why this? it's silly default me 8gb , not give me easy way resize partition. watch this:

admin@ip-xxxxx:~$ sudo resize2fs /dev/xvda1 resize2fs 1.42.12 (29-aug-2014) filesystem 2096128 (4k) blocks long.  nothing do!

i've seen guides online don't seem work me. tried taking snapshot , started secondary instance different(new) primary ebs. attached vole created snapshot, kept booting snapshot volume, not new 1 created instance.

first, want know possible - , more importantly, how?

my reservations are, if make me jump through many hoops setup, there better way manage data growth on site? better have small root ebs, , add volume mysql data dir , site uploads? not sure go here.

when create ebs volume ebs snapshot bigger original ebs snapshot (like you're doing), file-system held on volume still report original size.

it's standard behaviour , must use resize2fs in order expand file-system occupy entire new size volume.

http://docs.aws.amazon.com/awsec2/latest/userguide/ebs-expand-volume.html

this because aws knows ebs volumes data blocks; not know file-systems stored. example, aws not know file-system ext3, ext4, xfs, or ntfs. not know want partition take entire volume or if want add new partition. these decide , manage yourself.

as follow-up question, it's best put data on secondary volume , mount within file-system. way, can add space mounting more volumes and/or unmounting existing volumes.


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