First steps to install AspireOS would be to download it and burn the ISO to CD or DVD. Turn on computer and press F12 or similar to select boot device. For computers without optical drive you would need an external USB optical drive, or you could use Qemu or some VM player to make a ready to boot USB storage device (look bellow).

If this is difficult for you I can give you for free a CD with AspireOS. You only pay for the shiping.
If you don't have optical drive or like to use USB storage device for AROS I can make it for you.
Send e-mail to

To use AspireOS in a serious way you must install it to some kind of drive (HDD, SSD, USB). It is also possible to use AspireOS hosted on Linux, Window or Mac. You can read more about that here 

When AspireOS boots for first time you should configure your preferences. Most important to get right is your input.prefs (keyboard)
Screenmode.prefs (screen resolution) and network.prefs

Don't forget to have a look at the tips and tricks page after installation. Click here

Network configuration

Click on pictures to see how to configure your wireless network.

Easy way go get online is with your telephone. Share internet through USB.
My Samsung Galaxy K zoom connects to mdis.class through USB.
It is a good idea to use tethering if the speed is slow. Sometimes
the phone might not use wi-fi even if it is connected and will use
telephone data that is slow and expensive.
IPhone will not work but many android phones will.
In network.prefs change Device to usbrndis.device

Save and from shell type startnet and you are online.

Don't forget to have a look at tips and tricks page. Click here

Install AspireOS without optical drive.

Qemu guide from Olivier:

It is possible to install AROS v0 i386 on an USB stick from Qemu.
start Qemu with: sudo qemu -cdrom aros-pc-i386.iso -usb -usbdevice host:vendorid:productid -boot d
with vendorid:productid for your insterted USB stick, given by lsusb.
then open tools/hdtoolbox (clicking on it)
from there, prepare a MBR(RDB(DU0)) or RDB(DU0) partition, set as SFS BE. don't forget to set it as bootable. save all. restart the virtual machine (restarting the OS doesn't work)
once on the Wanderer again, install AROS. that's it.

Multiboot with other OS.

Warning! The info bellow might be outdated. I have no plan to update this info but it is possible to ask people in this forum. Click here.

First you should format disk and leave empty space for AspireOS.
If you want windows to be used together with AspireOS it's quite simple. You run the installer and select "use empty space on hdd" the rest is pretty straight forward. When AspireOS is installed you will get the windows selection in boot menu.

With Linux it's a little more difficult.
You have 2 options. You can install AspireOS with bootloader and edit grub.cfg from AROS.
That option might sound interesting but the problem is when you update Linux. Your config. will be overwritten. Therefore I will concentrate on option 2.
I will focus on installation with Ubuntu. Other Linux distributions I have not tried.
As said you must partition your storage device to leave empty space. When you install Linux you will be asked where and how you want it installed. You must select manual entry and specify partitions. How much space you leave for AROS is up to you, but a minimum of 4G is recommended. Set mount point for Linux boot to "/" and use "ext4" file system. Again, leave empty space for AROS, Don't format or do anything with that empty space.
Now boot AROS. How to boot and install AspireOS (look at top of page).
What is important is don't install bootloader from aros-installer. If you do that Linux bootloader will be overwritten.
If you came this far you will have Linux and AROS on drive. The problem now is how to boot AROS.
Edit Grub from Linux is the answer.
You must copy files from from AspireOS live-CD /boot/ to Linux /boot/ copy all the files minus the grub dir from AROS:Boot/ 
From Terminal "sudo nautilus" to get premission to copy to /boot/
If you wish to update AROS installation in the future, remember to copy over the AROS kernel files in Linux /boot/

Open Terminal and type  "sudo gedit" open file etc/grub.d/40_custom
There you will add new entry. Just paste these lines there: 

menuentry "AspireOS (native graphics)" {
multiboot /boot/bootstrap-pc.gz ATA=32bit floppy=disabled enableusb
module /boot/aros-bsp-pc-i386.gz
module /boot/aros-base.pkg.gz
module /boot/aros-fs.pkg.gz
module /boot/poseidon.pkg.gz

menuentry "AspireOS (true colour VESA graphics)" {
multiboot /boot/bootstrap-pc.gz vesa=32bit ATA=32bit floppy=disabled enableusb nomonitors
module /boot/aros-bsp-pc-i386.gz
module /boot/aros-base.pkg.gz
module /boot/aros-fs.pkg.gz
module /boot/poseidon.pkg.gz
Open terminal again. Type "sudo update-grub"
Reboot and hold shift. You will now see bootmenu with the AspireOS entry.
Select it and AspireOS will boot.