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[root@hdd4 ~] # fdisk /dev/vdb
anaconda-ks.cfg .bash_profile .pki/ .bash_history .bashrc .tcshrc .bash_logout .cshrc .viminfo [root@hdd4 ~] # fdisk /dev/vdb #下面操作把硬盘所有容量设置为一个分区
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command .
Device does not contain a recognized partition table Building a new DOS disklabel with disk identifier 0xc19c6a55. Command (m for help): n
Partition type :
p primary (0 primary, 0 extended, 4 free )
e extended
Select (default p): p Partition number (1-4, default 1): First sector (2048-629145599, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-629145599, default 629145599): Using default value 629145599 Partition 1 of type Linux and of size 300 GiB is set
Command (m for help): w
The partition table has been altered! Calling ioctl() to re- read partition table.
Syncing disks. [root@hdd4 ~] # mkfs -t ext4 /dev/vdb1 #格式化/vdb1分区
mke2fs 1.42.9 (28-Dec-2013) Filesystem label= OS type : Linux
Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 19660800 inodes, 78642944 blocks 3932147 blocks (5.00%) reserved for the super user
First data block=0 Maximum filesystem blocks=2227175424 2400 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, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616
Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done [root@hdd4 ~] # mkdir /data
[root@hdd4 ~] # mount /dev/vdb1 /data
[root@hdd4 ~] # chown -R /data
chown : missing operand after ‘ /data ’
Try 'chown --help' for more information.
[root@hdd4 ~] # chown -R hadoop:hadoop /data
[root@hdd4 ~] #
[root@hdd4 ~] #
[root@hdd4 ~] # blkid /dev/
Display all 152 possibilities? (y or n) [root@hdd4 ~] # blkid /dev/vdb1
/dev/vdb1 : UUID= "b112cf72-a0a4-45cc-88be-afdc24a1e635" TYPE= "ext4" [root@hdd4 ~] # cat /etc/fstab
# # /etc/fstab # Created by anaconda on Tue Dec 20 14:35:53 2016 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos-root / xfs defaults 0 0
UUID=82b43f00-0de4-4571-b093-654128268c31 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
UUID=b112cf72-a0a4-45cc-88be-afdc24a1e635 " TYPE=" ext4 /data ext4 defaults 0 0
[root@hdd4 ~] #
[root@hdd4 ~] # df -h
Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 18G 3.2G 15G 18% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 89M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/vda1 497M 108M 390M 22% /boot
tmpfs 3.2G 0 3.2G 0% /run/user/1000
tmpfs 3.2G 0 3.2G 0% /run/user/0
/dev/vdb1 296G 65M 281G 1% /data
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