====== Add New Partitions And Logical Volumes And Swap To A System Non-destructively ======
**General Information**
Different methods of adding swap.
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===== Swap with Logical Volumes =====
Create new partition with the Logical Volume type
fdisk /dev/sdb
n
Partition type: primary
Partition number: 1
First sector: default
Last sector: +1G
t
Hex code: 8e
w
\\
Setup LVM physical volume, volume group, logical volume
pvcreate /dev/sdb1
vgcreate vglocal /dev/sdb1
lvcreate -n lvswap -L 1G vglocal
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Format logical volume with swap, enable, and add to fstab
mkswap /dev/mapper/vglocal-lvswap
swapon /dev/mapper/vglocal-lvswap
vim /etc/fstab
/dev/mapper/vglocal-lvswap swap swap sw 0 0
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===== Swap with Physical Partition =====
Create physical disk partition for swap
fdisk /dev/sdb
n
Partition type: primary
Partition number: 2
First sector: default
Last sector: +1G
t
Hex code: 82
w
* Hex code 82 is Linux Swap
\\
Create the swap filesystem
mkswap /dev/sdb2
swapon /dev/sdb2
* edit /etc/fstab if you want persistent changes
\\
View swap space
swapon -s
\\
Activate all swap on /etc/fstab
swapon -a
* Turn off swap with: swapoff /dev/ or swapoff -a
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