swapon command error

[lin dimitri <lindimitri@gmail.com>]

Hi,

I am trying to increase my swap memory, below is the commands I used:-

$ sudo swapon --show

$ sudo swapoff -a

$ sudo fallocate -l 4G /swapfile
$ sudo chmod 600 /swapfile
$ sudo mkswap /swapfile
$ sudo swapon /swapfile

swapon failed: Function not implemented

i got above error.

I have CONFIG_SWAP=y in /proc/config.gz.

i don't know how this can be solved

plz help.

Regards,

lin