[실습] 1. 디스크추가

1. 디스크추가

2. fdisk -l --현재연결되어있는 하드디스크 확인

[root@localhost ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14         650     5116702+  83  Linux
/dev/sda3             651        1287     5116702+  83  Linux
/dev/sda4            1288        2610    10626997+   5  Extended
/dev/sda5            1288        1542     2048256   82  Linux swap / Solaris
/dev/sda6            1543        1669     1020096   83  Linux
/dev/sda7            1670        2610     7558551   83  Linux

Disk /dev/sdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table --파티션작업 안해서 사용할수 없음.

3. fdisk 명령어로 /dev/sdb를 10GB 두개로 분할

[root@localhost ~]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.


The number of cylinders for this disk is set to 2610.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): n -- new, 신규생성
Command action
   e   extended
   p   primary partition (1-4)
p -- extended / primary 선택
Partition number (1-4): 1 --주파티션번호
First cylinder (1-2610, default 1): 1 -- 시작실린더 번호
Last cylinder or +size or +sizeM or +sizeK (1-2610, default 2610): +10G -- 용량지정, 단위 대문자로

Command (m for help): p -- 확인

Disk /dev/sdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        1217     9775521   83  Linux

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (1218-2610, default 1218): --엔터치면 알아서
Using default value 1218
Last cylinder or +size or +sizeM or +sizeK (1218-2610, default 2610): --엔터치면 남은용량 모두 할당
Using default value 2610

Command (m for help): p

Disk /dev/sdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        1217     9775521   83  Linux
/dev/sdb2            1218        2610    11189272+  83  Linux

Command (m for help): w -- 저장/ solaris : label
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

4. 파티션 완료된 디스크를 포맷

[root@localhost ~]# mkfs.ext3 /dev/sdb1  --파티션1 포맷 / solaris : newfs
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
1224000 inodes, 2443880 blocks
122194 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2503999488
75 block groups
32768 blocks per group, 32768 fragments per group
16320 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 22 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.

[root@localhost ~]# mkfs.ext3 /dev/sdb2 --파티션2 포맷
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
1400768 inodes, 2797318 blocks
139865 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2864709632
86 block groups
32768 blocks per group, 32768 fragments per group
16288 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 27 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.

5. 디렉토리 생성후 마운트

[root@localhost /]# mkdir /dir1
[root@localhost /]# mkdir /dir2
[root@localhost /]# mount /dev/sdb1 /dir1
[root@localhost /]# mount /dev/sdb2 /dir2
[root@localhost /]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda3             4.8G  3.0G  1.6G  65% /
/dev/sda7             7.0G  145M  6.5G   3% /app
/dev/sda6             965M   72M  844M   8% /var
/dev/sda2             4.8G  138M  4.4G   4% /home
/dev/sda1              99M   12M   83M  12% /boot
tmpfs                 506M     0  506M   0% /dev/shm
/dev/sdb1             9.2G  150M  8.6G   2% /dir1
/dev/sdb2              11G  155M  9.9G   2% /dir2

6. 재부팅 후에도 유지되도록 /etc/fstab 파일에 등록

[root@localhost /]# vi /etc/fstab
LABEL=/                 /                       ext3    defaults        1 1
LABEL=/app              /app                    ext3    defaults        1 2
LABEL=/var              /var                    ext3    defaults        1 2
LABEL=/home             /home                   ext3    defaults        1 2
LABEL=/boot             /boot                   ext3    defaults        1 2
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
LABEL=SWAP-sda5         swap                    swap    defaults        0 0
/dev/sdb1               /dir1                   ext3    defaults        1 2
/dev/sdb2               /dir2                   ext3    defaults        1 2