{nav icon=home, name=Main Page > icon=cogs, name=Installation Guide > Live system installation} Guide through the process of installing PureOS from live instance --- NOTE: Make sure you have [[https://tracker.pureos.net/w/recommendations/#preparing-to-install | prepared the install medium]]. Start the live PureOS instance from a USB you have prepared. At the prompt, choose option 1, //Start live PureOS// and wait for the GNOME desktop to fully start. 1. Start the Calamares installer: {F20416, alt=PureOS live instance 1, size=full} 2. Ensure that you are connected to the power supply and the internet, and click !!Next!!: {F20418, alt=Calamares install 2, size=full} 3. Choose your time zone, set the system language and number and date locale: {F20420, alt=Calamares install 3, size=full} 4. Select your keyboard layout: {F20422, alt=Calamares install 4, size=full} 5. Disk partitioning. Assumed is that your disk is blank. You can choose automatic partitioning (**//Erase disk//** option), the installer will automatically partition your disk. You can also choose to manually partition your disk, continue to **//Manual partitioning//**: {F20424, alt=Calamares install 5, size=full} 6. First, click !!New Partition Table!! to create new partition table: {F20426, alt=Calamares install 6, size=full} 7. ...and select GPT (click !!OK!! to accept): {F20428, alt=Calamares install 7, size=full} 8. Now click on free space and click !!Create!! to create first partition: {F20430, alt=Calamares install 8, size=full} 9. Since we used GPT partition table, we need to create a partition with special flag. It can be of minimum size, so set the 1 MB size (installer might increase this value to something like 8 MB, ignore this), set File System to //unformatted// and select **bios-grub** flag (this is important). Click !!OK!! afterwards: {F20432, alt=Calamares install 9, size=full} 10. Click on **//Free Space//** and then the !!Create!! to create next partition: {F20434, alt=Calamares install 10, size=full} 11. In this example, swap partition is created next. Swap is needed for proper hibernation, and since the system has 8 GB of RAM, the size here is set to 7168 MB (7 GB). If your system has more RAM, make this partition larger. Choose !!linuxswap!! as file system: {F20436, alt=Calamares install 11, size=full} 12. Next, create root partition (place where your system is going to be installed). The size is set to 20 GB, you can set it larger if you plan to install a lot of sotware. Choose !!ext4!! as filesystem, as it is the most stable and most tested. Don't use !!btrfs!! on your production builds! Set **/** for mount point: {F20438, alt=Calamares install 12, size=full} 13. Create the home partition. This is the place where your data will reside. Use the rest of disk space. Set **/home** for mount point: {F20440, alt=Calamares install 13, size=full} 14. Review your partitioning: {F20442, alt=Calamares install 14, size=full} 15. Create a user: {F20444, alt=Calamares install 15, size=full} 16. Review install instructions: {F20446, alt=Calamares install 16, size=full} 17. ...and confirm the installation: {F20448, alt=Calamares install 17, size=full} 18. Wait for few minutes: {F20450, alt=Calamares install 18, size=full} 19. And restart after it is done. {F20452, alt=Calamares install 19, size=full}