I've created a RAID 1 using mdadm as below however I am having problems mounting it...
sudo mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/sdb /dev/sdc mdadm: /dev/sdb appears to be part of a raid array: level=raid1 devices=2 ctime=Sun Nov 5 20:36:10 2017 mdadm: Note: this array has metadata at the start and may not be suitable as a boot device. If you plan to store '/boot' on this device please ensure that your boot-loader understands md/v1.x metadata, or use --metadata=0.90 mdadm: size set to 625000768K mdadm: automatically enabling write-intent bitmap on large array Continue creating array? yes mdadm: Defaulting to version 1.2 metadata mdadm: array /dev/md0 started. sudo mdadm --examine --scan --config=/etc/mdadm/mdadm.conf ARRAY /dev/md/0 metadata=1.2 UUID=1e236272:3e68ea7b:fab6ba77:eb211675 name=SPCURTIS81-projSERV:0
However when I try to mount the array, I'm getting the following error...
sudo mount /dev/md0 /home/ste/mnt/ mount: /home/ste/mnt: wrong fs type, bad option, bad superblock on /dev/md0, missing codepage or helper program, or other error.
I've Google'd and searched on here but I'm struggling to find anything which I understand to relate directly to this.
Some of the following info may or may not however be of use...
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 465.8G 0 disk ├─sda1 8:1 0 18.6G 0 part / ├─sda2 8:2 0 1K 0 part ├─sda5 8:5 0 442.4G 0 part /home └─sda6 8:6 0 4.8G 0 part └─cryptswap1 253:0 0 4.8G 0 crypt sdb 8:16 0 596.2G 0 disk └─md0 9:0 0 596G 0 raid1 sdc 8:32 0 596.2G 0 disk └─md0 9:0 0 596G 0 raid1
Same result for both sdb & sdc -
fsck from util-linux 2.30.1
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sdc sdb 625000768 blocks super 1.2 [2/2] [UU] [===>.................] resync = 18.5% (116140608/625000768) finish=78.1min speed=108513K/sec bitmap: 5/5 pages [20KB], 65536KB chunk
You have to make a file system on your array. The raw array is just a block device, which can hold any kind of file system, or non file system data.
To make a filesystem, you can issue
sudo mkfs.ext4 /dev/md0 to make a new filesystem with EXT4 (one of the more popular file systems; works great for all round use.
After you've made a file system you can mount it using the command
sudo mount /dev/md0 /home/ste/mnt/