| Folder | Description |
| /bin | User Binaries (Critical to OS) |
| /sbin | System Binaries |
| /etc | Configuration files |
| /dev | Device Files |
| /proc | Process Information |
| /var | Variable Files. E.g. Logs |
| /tmp | Temporary Files |
| /usr | User Programs (Optional, can be mounted from elsewhere) |
| /home | Home Directories e.g. /home/user/Documents |
| /boot | Boot Loader Files |
| /lib | System Libraries |
| /opt | Optional add-on Apps, non-OS, from independant application developers. Separated in individual sub-folders. |
| /mnt | Folder to mount drives or network shares |
| /media | Removable devices |
| /root | /home for root (optional) |
| /srv | Service Data |
| /sys | System Data |
See also: