C3rd

I was stuck for a while how to resize a running partition in my VM. Been searching for answers and all answers are quite long except this one:

root@silex5:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           798M  1.1M  797M   1% /run
/dev/sda2        49G   32G   15G  69% /
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
/dev/loop0      100M  100M     0 100% /snap/core/11420
/dev/loop1       18M   18M     0 100% /snap/pdftk/9
/dev/loop2      100M  100M     0 100% /snap/core/11606
tmpfs           798M     0  798M   0% /run/user/1011

root@silex5:~# growpart /dev/sda 2
CHANGED: partition=2 start=4096 old: size=104851456 end=104855552 new: size=251654111,end=251658207

root@silex5:~# resize2fs /dev/sda2
resize2fs 1.44.1 (24-Mar-2018)
Filesystem at /dev/sda2 is mounted on /; on-line resizing required
old_desc_blocks = 7, new_desc_blocks = 15
The filesystem on /dev/sda2 is now 31456763 (4k) blocks long.

root@silex5:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           798M  1.1M  797M   1% /run
/dev/sda2       118G   32G   81G  29% /
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
/dev/loop0      100M  100M     0 100% /snap/core/11420
/dev/loop1       18M   18M     0 100% /snap/pdftk/9
/dev/loop2      100M  100M     0 100% /snap/core/11606
tmpfs           798M     0  798M   0% /run/user/1011
root@silex5:~# reboot

Reference: https://unix.stackexchange.com/questions/137482/how-to-to-resize-an-ext4-partition-from-the-command-line