# jupiter

## Creating a USB key

```sh
sudo fdisk /dev/sdx
# o, n, p, <enter>, <enter>, <enter>, t, b, w
sudo mkfs.vfat -F 32 /dev/sdx1
mkdir -p /mnt/luks
sudo mount /dev/sdx1 /mnt/luks
echo -n "key" | sudo tee /mnt/luks/keyfile
```

## RAID Management

Remember to update [format.nix](format.nix).

### Adding a new drive

```
parted /dev/sdd -- mklabel gpt
parted /dev/sdd -- mkpart primary 0% 100%
cryptsetup luksFormat /dev/sdd
cryptsetup open /dev/sdd storage2
btrfs device add /dev/mapper/storage2 /mnt/storage
btrfs balance start -dconvert=raid1 -mconvert=raid1 /mnt/storage
```

### Removing an old drive

```
sudo btrfs device remove /dev/mapper/storage1 /mnt/storage
btrfs balance start -dconvert=raid1 -mconvert=raid1 /mnt/storage
sudo cryptsetup close storage1
```