Lets cover some basics here, because this part could be confusing.

To see your partition scheme type:


Scheme example

You should see at least 1 drive, this example has 3, including temporary flash drive:

sda      8:0    0   465G  0 disk                   *SSD*
├─sda1   8:1    0   499M  0 part 
├─sda2   8:2    0   100M  0 part /boot          
├─sda3   8:3    0    16M  0 part 
├─sda4   8:4    0   185G  0 part 
└─sda5   8:5    0   200G  0 part /
sdb      8:16   0 931.5G  0 disk                   *HDD*
├─sdb1   8:17   0   400G  0 part /home
├─sdb2   8:18   0    24G  0 part [SWAP]
└─sdb3   8:19   0   508G  0 part 
sdc      8:32   1   7.5G  0 disk                   *Flash Drive*
└─sdc1   8:33   1   7.5G  0 part


For now you shouldn't see any mount points unless you mount partitions to them, we will do it later.

Disks partitioning

If you are doing dual boot system with Windows, then EFI System Partition has been created with Windows installation.
You must mount it as a /boot for the Linux bootloader.

If you want to make clean solo arch installation you can wipe your drive:

Wiping disk

This will destroy all data on chosen drive. Use with caution!

Don't wipe sda in case you had installed Windows for dual boot system.

gdisk /dev/sdX # where X is your drive name 

Press RET first, then x for advanced config and z for zap. And now create a new one:

cgdisk /dev/sdX # where X is your drive name


gdisk is for GPT only, if you need MBR(old way), rather use fdisk or parted because they could cover both GPT and MBR.
It is also possible to convert between MBR and GPT with gdisk.


If you want to create any stacked block devices for LVM, disk encryption or RAID, do it now. You also can enable TRIM for SSD.


It's better to use SSD (sda in this case) for the system files where speed is important e.g.: bootloader, programs, et.c.

Tables size FS type mountpoint
sda1 499M 0c01 -
sda2 100M EF00 boot
sda3 16M 0c01 -
sda4 185G 0700 -
sda5 200G 8300 root
  • sda1,3 Microsoft reserved space.
  • sda2 To boot the system it must be exactly EF00. In case of dual boot, Windows will create this partition automatically.
  • sda4 Windows partition.
  • sda5 I set 200G for the root, but it could be less: ~60-100G should be fine, depends on your needs.


On the other hand HDD(sdb) could be used as a place for user files e.g.: music, projects, configurations, et.c..

Tables size FS type mountpoint description
sdb1 400G 8300 home linux file system
sdb2 24G 8200 swap 1.5 of my RAM memory (16G)
sdb3 508G 0700 winhome microsoft basic data
  • sdb1 /home place for your user files.
  • sdb2 SWAP depends on your RAM quantity. Usually you should take x1 or x1.5 of your RAM.


If you will take less RAM, there is still a chance of successfull hibernating.

  • sdb3 will contain Windows files.


You also have choice to use space to mount e.g.: /usr or /var.

Mounting folders

We want to assign /mnt to the root partition:

mount /dev/sda5 /mnt

Next we need to create some new folders in our /mnt:

mkdir /mnt/boot
mkdir /mnt/home

Mount them accordingly:

mount /dev/sda2 /mnt/boot
mount /dev/sdb1 /mnt/home

Format the partitions

Partitions must be formatted with an appropriate file system:

  • SWAP:
mkswap /dev/sdb2
swapon /dev/sdb2
  • Linux:
mkfs.ext4 /dev/sda5
mkfs.ext4 /dev/sdb1


Press y if you have this warning: /dev/sdxY contains a ext4 file system

  • /boot:
mkfs.fat -F32 /dev/sda1


Boot must be Fat32 as UEFI requirement.

You already have EFI partition if you installed Windows.

Last Updated: 12/30/2018, 10:56:45 PM