Quick Installation Checklist

BIOS/MBR
In this example we create 3 partitions. 128MB /boot, 1024MB swap and rest for /.

Format partitions.

UEFI/GPT
In this example we create 4 partitions. 128MB /boot, 32MB UEFI, 1024MB swap and rest for /.

Format partitions.

Install stage3
Find nearest mirror from: http://www.gentoo.org/main/en/mirrors2.xml

Download stage. Replace amd64 with your arch.

Unpack stage.

Chroot
Chroot into gentoo stage.

Create user accounts
Change root password.

Create user. Note, there are no spaces allowed between the groups.

Configure system
Configure fstab to match your partitioning.

Set portage options.

Set locale settings.

Also edit, and.

Set timezone.

Emerge
Gentoo-sources is vanilla kernel with gentoo patchset. You could also use vanilla-sources. Linux-firmware contains binary blobs needed for some hardware like wlan cards.

Manual
Find out needed modules for your hardware. You should enable these modules in menuconfig.

Configure kernel. You can search module names by pressing "/" in menuconfig and enable module by pressing the corresponding number.

Build kernel and modules.

Automatic
It is possible to use localyesconfig to select all modules currently loaded by the livecd.

Build kernel and modules.

Install
Now you can install kernel and modules.

Install bootloader
Edit grub config.

Here is simple example config.

Alternatively, you can use grub2-mkconfig:

Install network tools
Install tools to configure network interfaces.

External resources

 * Gentoo Handbook
 * x86 Quick Install Guide at gentoo.org