Linux hard disk error report (you must specify the filesystem type)

linux mount hard disk error prompt you must specify the filesystem type, meaning to tell us must specify a system partition, because you can read a few words in English, So it is also convenient to solve, let's take the whole operation process together.

Today, my virtual machine disk is used, so I want to add a disk. When I mount it, I find that I have to specify the filesystem type. (Note: My system environment is lcentos6.3 virtual machine installed in virtualbox)

It turns out that the disk has no format partition, so the following operation:

1) View first In the current system situation, the newly added disk is sdb
The code is as follows

[root@test ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 1024M 0 rom sda 8:0 0 8G 0 disk ├─sda1 8:1 0 500M 0 part /boot └─sda2 8:2 0 7.5G 0 part ├─VolGroup-lv_root (dm-0) 253:0 0 6.6G 0 lvm /└─VolGroup-lv_swap (dm-1) 253:1 0 992M 0 lvm [SWAP] sdb 8:16 0 8G 0 disk

2) Try to mount, report error
Code is as follows [root@test ~]# mount /Dev/sdb /disk

mount: you must specify the filesystem type 3) format the magnetic
Code is as follows [root@test ~]# mkfs.ext3 /dev/sdb mke2fs 1.41.12 (17-May-2010) /dev/sdb is entire device, not just one partition! Anyway, continue? y,n) y file system label = operating system: Linux block size = 4096 (log = 2) block size = 4096 (log = 2) Stride = 0 blocks, Stripe width = 0 blocks 524288 inodes, 2097152 blocks 104857 blocks ( 5.00%) reserved for the super user first data block=0 Maximum filesystem blocks=2147483648 64 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632 Writing inode table: Completing Creating journal (32768 blocks): Completing Writing superblocks and filesystem accounting information: Completing This filesystem will be automatically checked every 27 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. [root@test ~]#

4) Mounted successfully
Code is as follows

[root@test ~]# cd /disk/[root@test disk]# ls Lost+found

5) Increase boot time

Code is as follows tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/sdb /disk ext3 defaults 0 0