Swapon --show does not update gb size when resizing disk

Question

I was wondering about something, I used AWS to resize a swap partition on an EC2 instance. When I ssh into the instance and use the command swapon --show in the console I still get the old GB value of the partition, however, if I use lsblk for example, the correct GB value is shown. Is that a bug? Which one of these can I trust now? I want to be certain that the swap space is also properly assigned and used.

score 1 · Accepted Answer · answered Jul 16 '20 at 14:08

1

You have to swapoff first and use mkswap and then swapon.

sudo swapoff /dev/nvmelnl
sudo mkswap /dev/nvmelnl
sudo swapon /dev/nvmelnl
sudo swpaon --show

answered Jul 16 '20 at 14:08

saranjeet singh

868
6
17

What if I do not do this? Would it mean that the system would not use 15gb but 3gb instead? – Benny Jul 16 '20 at 14:26
1

It won't use 15gb. – saranjeet singh Jul 16 '20 at 14:31

Swapon --show does not update gb size when resizing disk

1 Answers1