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Autosave: 2024-05-06 13:20:05

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thomasabishop 2024-05-06 13:20:05 +01:00
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zk/Partitions.md → zk/Linux_disk_partitions.md
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@ -1,15 +1,13 @@
--- ---
tags: tags:
- disks - disks
--- ---
# Disk partitions # Linux disk partitions
A disk is divided up into [partitions](Partitions.md) A disk is divided up into partitions which are subsections of the overall disk.
which are subsections of the overall disk. The kernel presents each partition as The kernel presents each partition as a [block device](Devices.md#Devices) as it
a [block device](Devices.md#Devices) as it would with an would with an entire disk.
entire disk.
The disk dedicates a small part of its contents to a **partition table**: this The disk dedicates a small part of its contents to a **partition table**: this
defines the different partitions that comprise the total disk space. defines the different partitions that comprise the total disk space.
@ -77,10 +75,9 @@ The two tools disclose that the main harddrive is `/dev/nvme0n1` (equivalent to
starts. This is where your bootloader is stored and that will be accessed by starts. This is where your bootloader is stored and that will be accessed by
the BIOS. In Linux this will be GRUB. the BIOS. In Linux this will be GRUB.
- Root dir (`/dev/nvme0n1p2`) - Root dir (`/dev/nvme0n1p2`)
- This is the domain of the - This is the domain of the [superuser](User_Space.md#root-user-superuser).
[superuser](User_Space.md#root-user-superuser). The part The part of the filesystem that you need sudo priveleges to access and where
of the filesystem that you need sudo priveleges to access and where you you manage users
manage users
- Home dir (`/dev/nvme0n1p3`) - Home dir (`/dev/nvme0n1p3`)
- The domain of the user(s) - The domain of the user(s)
@ -173,13 +170,9 @@ umount /dev/sda2
```bash ```bash
# Load the disk into fdisk # Load the disk into fdisk
$ sudo fdisk /dev/sda $ sudo fdisk /dev/sda
# Select delete and run for each partition
Command (m for help): d Command (m for help): d
Partition number (1,2, default 2): 1 Partition number (1,2, default 2): 1
Partition 1 has been deleted. Partition 1 has been deleted.
Command (m for help): d Command (m for help): d
Selected partition 2 Selected partition 2
Partition 2 has been deleted. Partition 2 has been deleted.
@ -199,6 +192,7 @@ w
# Check execution: # Check execution:
$ lsblk $ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 465.7G 0 disk sda 8:0 0 465.7G 0 disk
``` ```
@ -255,7 +249,7 @@ Calling ioctl() to re-read partition table.
Syncing disks. Syncing disks.
``` ```
We can now confirm out new partitions: We can now confirm our new partitions:
```bash ```bash
$ lsblk $ lsblk