linuxexpert-practice-labs/labs/linux-plus/1-3-1-partitions

Linux+ 1.3.1: Disks and partitions

GPT partition tables with fdisk and with parted in script mode, and growing a partition into free space.

Before you start

The lab adds three empty 2 GiB spare disks: /dev/loop40, /dev/loop41 and /dev/loop42. Their partitions show up as /dev/loop40p1 and so on. They come back at every boot. Each task has a disk of its own, so that the check can see all three results.

Tasks

1. On /dev/loop40, make a GPT partition table with two partitions using fdisk: the first 500 MiB, the second filling the rest of the disk.
2. On /dev/loop41, do the same with parted in script mode (parted -s), naming the partitions one and two.
3. On /dev/loop42, make the same two partitions, then delete partition 2 and grow partition 1 into the free space with growpart.

Hints

• lsblk first, to be sure you're on the right disk.
• In fdisk: g (new GPT table), n (new partition, size +500M), n again (accept the defaults for the rest), p, w.
• parted -s DISK mklabel gpt mkpart one 1MiB 500MiB mkpart two 500MiB 100%; parted DISK print.
• parted -s DISK rm 2, then growpart DISK 1 (in cloud-utils-growpart on the RHEL family, cloud-guest-utils on Ubuntu).