I updated an EBS volume from 30Gb to 40Gb and I'm having hard time to extend it in the system:
root@ip:/home/cpmuser# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 55.4M 1 loop /snap/core18/2066
loop1 7:1 0 99.4M 1 loop /snap/core/11316
loop2 7:2 0 32.3M 1 loop /snap/amazon-ssm-agent/2996
loop3 7:3 0 99.4M 1 loop /snap/core/11187
loop4 7:4 0 33.3M 1 loop /snap/amazon-ssm-agent/3552
loop6 7:6 0 55.5M 1 loop /snap/core18/2074
nvme1n1 259:0 0 60G 0 disk /cpmdata
nvme0n1 259:1 0 40G 0 disk
└─nvme0n1p1 259:2 0 30G 0 part /
root@ip:/home/cpmuser# resize2fs /dev/nvme0n1
resize2fs 1.44.1 (24-Mar-2018)
resize2fs: Device or resource busy while trying to open /dev/nvme0n1
Couldn't find valid filesystem superblock.
this is the output of the command df -h:
root@ip-:/home/cpmuser# df -h
Filesystem Size Used Avail Use% Mounted on
udev 16G 0 16G 0% /dev
tmpfs 3.1G 307M 2.8G 10% /run
/dev/nvme0n1p1 30G 30G 0 100% /
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/loop0 56M 56M 0 100% /snap/core18/2066
/dev/loop2 33M 33M 0 100% /snap/amazon-ssm-agent/2996
/dev/loop3 100M 100M 0 100% /snap/core/11187
/dev/loop4 34M 34M 0 100% /snap/amazon-ssm-agent/3552
/dev/nvme1n1 59G 1.4G 55G 3% /cpmdata
/dev/loop6 56M 56M 0 100% /snap/core18/2074
/dev/loop1 100M 100M 0 100% /snap/core/11316
tmpfs 3.1G 0 3.1G 0% /run/user/1001
I tried many commands: resize2fs , growpart, none worked.
