Lesson 4.6: Add new partitions and logical volumes, and swap to a system non-destructively


Format the newly created disk partition with SWAP filesystem

[root@server dev]# mkswap /dev/nvme0n2p3 Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes) no label, UUID=8d24af54-42be-455c-ab9f-c7fa9e85b9ff [root@server dev]# free -h total used free shared buff/cache available Mem: 3.5Gi 1.0Gi 1.9Gi 25Mi 808Mi 2.5Gi Swap: 2.0Gi 0B 2.0Gi [root@server dev]#

Activate the newly created SWAP Partition

Temporary Activation

[root@server dev]# swapon /dev/nvme0n2p3 [root@server dev]# free -h total used free shared buff/cache available Mem: 3.5Gi 1.0Gi 1.9Gi 25Mi 808Mi 2.5Gi Swap: 3.0Gi 0B 3.0Gi

Deactivation

[root@server dev]# swapoff /dev/nvme0n2p3 [root@server dev]# free -h total used free shared buff/cache available Mem: 3.5Gi 1.0Gi 1.9Gi 25Mi 808Mi 2.5Gi Swap: 2.0Gi 0B 2.0Gi

Permanent Activation

[root@server dev]# vim /etc/fstab /dev/nvme0n2p3 none swap defaults 0 0 [root@server dev]# free -h total used free shared buff/cache available Mem: 3.5Gi 1.0Gi 1.9Gi 25Mi 812Mi 2.5Gi Swap: 2.0Gi 0B 2.0Gi # Updating the SWAP [root@server dev]# swapon -a # Viewing the SWAP [root@server dev]# free -h total used free shared buff/cache available Mem: 3.5Gi 1.0Gi 1.9Gi 25Mi 812Mi 2.5Gi Swap: 3.0Gi 0B 3.0Gi [root@server dev]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sr0 11:0 1 1024M 0 rom nvme0n1 259:0 0 20G 0 disk ├─nvme0n1p1 259:1 0 600M 0 part /boot/efi ├─nvme0n1p2 259:2 0 1G 0 part /boot └─nvme0n1p3 259:3 0 18.4G 0 part ├─cs-root 253:0 0 16.4G 0 lvm / └─cs-swap 253:1 0 2G 0 lvm [SWAP] nvme0n2 259:4 0 5G 0 disk ├─nvme0n2p1 259:5 0 50M 0 part /data1 ├─nvme0n2p2 259:6 0 100M 0 part /data2 └─nvme0n2p3 259:8 0 1G 0 part [SWAP] nvme0n3 259:7 0 6G 0 disk
All systems normal

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