[root@localhost 바탕화면]# ls -l /dev/sd*
brw-rw---- 1 root disk 8,  0  3월 25 21:43 /dev/sda
brw-rw---- 1 root disk 8,  1  3월 25 21:43 /dev/sda1
brw-rw---- 1 root disk 8,  2  3월 25 21:43 /dev/sda2
brw-rw---- 1 root disk 8, 16  3월 25 21:43 /dev/sdb

Building a new DOS disklabel with disk identifier 0x2569293f.

Command (m for help): m
Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition
   g   create a new empty GPT partition table
   G   create an IRIX (SGI) partition table
   l   list known partition types
   m   print this menu
   n   add a new partition
   o   create a new empty DOS partition table
   p   print the partition table
   q   quit without saving changes
   s   create a new empty Sun disklabel
   t   change a partition's system id
   u   change display/entry units
   v   verify the partition table
   w   write table to disk and exit
   x   extra functionality (experts only)

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): (그냥 엔터)
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-2097151, default 2097151): (그냥 엔터 디폴트값)
Using default value 2097151
Partition 1 of type Linux and of size 1023 MiB is set

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# ls -l /dev/sd*
brw-rw---- 1 root disk 8,  0  3월 25 21:43 /dev/sda
brw-rw---- 1 root disk 8,  1  3월 25 21:43 /dev/sda1
brw-rw---- 1 root disk 8,  2  3월 25 21:43 /dev/sda2
brw-rw---- 1 root disk 8, 16  3월 25 21:56 /dev/sdb
brw-rw---- 1 root disk 8, 17  3월 25 21:56 /dev/sdb1

[root@localhost ~]# mkfs.ext4 /dev/sdb1
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
65536 inodes, 261888 blocks
13094 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=268435456
8 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 
    32768, 98304, 163840, 229376

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done

[root@localhost ~]# mkdir  /mydata
[root@localhost ~]# mount /dev/sdb1 /mydata/

[root@localhost ~]# ls /mydata/
lost+found
[root@localhost ~]# df
Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/sda2       81797100 4405012  77392088   6% /
devtmpfs          496956       0    496956   0% /dev
tmpfs             505432     140    505292   1% /dev/shm
tmpfs             505432    7072    498360   2% /run
tmpfs             505432       0    505432   0% /sys/fs/cgroup
/dev/sdb1        1014680    2564    943356   1% /mydata
[root@localhost ~]# 

//// 복사 테스트

[root@localhost ~]# cp /boot/vmlinuz-3.10.0-123.el7.x86_64 /mydata/data1
[root@localhost ~]# ls -l /mydata/
합계 4804
-rwxr-xr-x 1 root root 4902656  3월 25 22:01 data1
drwx------ 2 root root   16384  3월 25 21:57 lost+found
[root@localhost ~]# df
Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/sda2       81797100 4403856  77393244   6% /
devtmpfs          496956       0    496956   0% /dev
tmpfs             505432     140    505292   1% /dev/shm
tmpfs             505432    7072    498360   2% /run
tmpfs             505432       0    505432   0% /sys/fs/cgroup
/dev/sdb1        1014680    7352    938568   1% /mydata

///// 부트시 자동 마운트 
[root@localhost ~]# gedit /etc/fstab 

 

 

******  gedit   - fstab *******
#
# /etc/fstab
# Created by anaconda on Fri Nov 28 05:45:53 2014
#
# 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
#
UUID=d45767af-bda8-4336-b31c-66add765e665 /                       xfs     defaults        1 1
UUID=9134adf3-0e7f-481f-9907-b5fa267c157a swap                    swap    defaults        0 0
/dev/sdb1                            /mydata                                ext4     defaults       0 0