1. Check the PCI Interface Device Use lspci to check whether the device is already installed. 1 2 3 lspci |grep storage d8:00.0 Mass storage controller: Shannon Systems Device 2275 Here a Shannon Systems device shows up, which means the SSD is already installed. 1 2 3 4 5 6

1. Installation Preparation A USB drive with PE installed On MacOS, you can use balenaEtcher to burn the wepe for mac image. Download the synoboot file http://down.nas2x.com/synology/dsm/6.2/synoboot/ Download the DSM.pat file https://archive.synology.com/download/Os/DSM 2. Getting Started Boot through PE and enter the system Write synoboot to the built-in SSD storage If you boot from a USB drive, you may also need to modify the PID and VID values in grup.