add: guide

README.md

@@ -6,8 +6,66 @@ Download [iso image file](https://repo.bioarchlinux.org/iso) from [any mirror](h
 
 ## Release
 
-This iso is released monthly.
+This iso is released monthly and built by mkarchiso.
 
-## Build
+# Installation guide
+
+## Pre-installation
+
+### Partition the disks
+
+Check the partitions, usually, you need one boot partition and one / partition.
+
+```
+# fdsik -l
+```
+
+If you want to create partitions use
+
+```
+# fdisk /dev/the_disk_to_be_partitioned
+```
+
+### Format partitions
+
+Following commands format the boot partition as fas, the root partition as ext4.
+
+```
+# mkfs.ext4 /dev/root_partition
+# mkfs.fas /dev/boot_partition
+```
+
+### Mount
+
+```
+# mount /dev/root_partition /mnt
+# mount --mkdir /dev/boot_partition /mnt/boot
+```
+
+## Installation
+
+### Select the mirrors
+
+you can edit `/etc/pacman.d/mirrorlist` and `/etc/pacman.d/mirrorlist.bio`, and put the mirror you want at the top of the file.
+
+### Install essential packages
+
+The example commands will let you use the Linux kernel, you can replace it with other kernels.
+
+```
+# pacstrap -K /mnt base-bio linux linux-firmware
+```
+
+### pacman.conf
+
+You can use the `pacman.conf` from live cd, or you should manually add `bioarchlinux` repo to `pacman.conf`
+
+```
+# cp /etc/pacman.conf /mnt/etc/pacman.conf
+```
+
+
+## Configure the system, Reboot & Post-installation
+
+You can view a[rchlinux wiki](https://wiki.archlinux.org/title/Installation_guide), totally the same as Arch Linux.
 
-This is build by mkarchiso.