CentOS7 How to setup RAID?

Question

linux

Here are the commands I wrote, where is the error?

yum install mdadm
mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb /dev/sdc
lsblk
mdadm --detail /dev/md0
mdadm --verbose --detail --scan > etc/mdadm.conf
mkfs.ext4 /dev/md0
mount /dev/md0 /mnt/raid1
df -H /dev/md0
mkdir /mnt/mdadm-raid1
mount /dev/md0 /mnt/mdadm-raid1
cd /mnt/mdadm-raid1/lost+found/
cd /mnt/mdadm-raid1
ls
nano /etc/fstab
/dev/md0/mnt/raid0 ext4 defaults 1 2

Answer 1

Well, at least the last line is missing a space between /dev/md0 and /mnt/raid0
and yes, is there such a directory? otherwise you tested mount to another directory a couple of lines above