notes/hard_disks.md

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## RAID edits
* Enter the system setup menu at boot time, then you also have to press additional keys to get to the RAID screen
* create a new virtual disk and assign the new disks, then initialize the VD
## Mounting the new VD
* find the disk with `fdisk -l | grep '^Disk'`
* create a partition table
* `fdisk /dev/sdb`
* `p` to list partition table if any
* `n` to create a new partition
* `w` to write the new partition
* format the new partition with `mkfs.ext4 /dev/sdb1`
* create an access folder, maybe at //mnt/backup
* run the mount `mount /dev/sdb1 /mnt/backup`
* edit fstab by adding
* using device name
```
//dev/sdb1 /mnt/backup ext4 defaults 1 2
```
* using UUID (do `sudo blkid` to get the UUID)
```
UUID="86e81045-a0dc-4881-8ddb-5ef25834ea5a" /datadrive xfs defaults,nofail 1 2
```
* somehow in the process an new systemctl service module is loaded based on fstab at runs at boot