create a partition for given size(2G) #fdisk /dev/sdb #n #+2G #w #partprobe check the present free memory #free -h #mkswap /dev/sdb5 #swapon /dev/sdb5 check the swap space and compai with privious value #free -h exit /etc/fstab and add below line /dev/sdb5 swap swap defaults 0 0 wright and exit /etc fstab # swapon -a

man fstab says that the second field should be none, not swap. UUID=234wfd none swap defaults 0 0

first check available swap #free -m second partions available #lsblk #parted -s /dev/vdb mklabel msdos #parted -s /dev/vdb mkpart primary 2048S 2200MB #mkswap /dev/vdb1 #vim /etc/fstab /dev/vdb1 swap swap defaults 0 0 #swapon -a

lsblk #to check partition fdisk /dev/sdb #to sda or sdb depending on the disk n # for new p #primary 1 #default partition number enter #first sector +2G #last sector t #to change type and select 82 for swap 82 #code for hex w #save changes partprobe #to update partition table lsblk #to confirm mkswap /dev/sbd1 #to generate UUID, we need UUID to make it permanent lsblk -f #to see file system, should be swap vi /etc/fstab #to make it permanent UUID=xxxxxxxxxxxx swap swap defaults 0 0 free -h swapon -a free -h #swap value must be increased by 2G

#lsblk #free -h #mkswap /dev/sdb #swapon /dev/sdb #free -h #vim /etc/fstab #/dev/sdb swap defaults 0 0

if it is a swap partition the appropriate partition type (Linux swap) must be set -> t (use l to get a list of known partition types) -> 82

echo $(blkid /dev/sdb5) >> /etc/fstab use this command to copy uid to fstab.