# Add data disk I'm trying to add a 1TB SSD drive to banky, connected to the mainboard, to use it as a data disk. I used `fdisk -l` to list the connected disks. The SSD already appeared there. I then partitioned this disk with `fdisk /dev/sda/` (/dev/sda was the given name for the disk. The exact name for your case can be checked by running `fdisk -l`). The command for partitioning is `n`. Now it's time for formatting. After some reading, apparently the right choice for a linux data disk would to use `ext4`. But bear in mind this is not compatible with windows and macos. If you have a disk that would like to use across different OS systems, you can pick `fat32`. To format, pick the partition (you can find it with `lsblk`) and use the mkfs command. Well that was the theory, because it didn't work for me. I ended up using Debian's GUI disk tool. Two clicks and done. Finally, the disk needs to be mounted. To do so on every boot, you need to add a line like this one to `/etc/fstab`. ``` UUID=66d23b74-677d-4122-8e67-4bc88ea03b18 /media/data_disk/ auto rw,user,auto 0 0 ``` Where the UUID should be one for the disk (you can find it out with `blkid` or some other of the disk utilities) and the path should exist.