linux下新加硬盘

新加入的硬盘格式化

步骤1:

1. [root@rac1 ~]# fdisk /dev/sdb
2. Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
3. Building a new DOS disklabel. Changes will remain in memory only,
4. until you decide to write them. After that, of course, the previous
5. content won't be recoverable.
6. The number of cylinders for this disk is set to 1305.
7. There is nothing wrong with that, but this is larger than 1024,
8. and could in certain setups cause problems with:
9. 1) software that runs at boot time (e.g., old versions of LILO)
10. 2) booting and partitioning software from other OSs
11. (e.g., DOS FDISK, OS/2 FDISK)
12. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
13. Command (m for help): m
14. Command action
15. a toggle a bootable flag
16. b edit bsd disklabel
17. c toggle the dos compatibility flag
18. d delete a partition
19. l list known partition types
20. m print this menu
21. n add a new partition
22. o create a new empty DOS partition table
23. p print the partition table
24. q quit without saving changes
25. s create a new empty Sun disklabel
26. t change a partition's system id
27. u change display/entry units
28. v verify the partition table
29. w write table to disk and exit
30. x extra functionality (experts only)

 步骤2:

1. Command (m for help): n
2. Command action
3. e extended
4. p primary partition (1-4)
5. p
6. Partition number (1-4): 1
7. First cylinder (1-1305, default 1):
8. Using default value 1
9. Last cylinder or +size or +sizeM or +sizeK (1-1305, default 1305):
10. Using default value 1305
11. Command (m for help): w
12. The partition table has been altered!
13. Calling ioctl() to re-read partition table.
14. Syncing disks.

步骤3:

1. [root@rac1 ~]# fdisk -l
2. Disk /dev/sda: 10.7 GB, 10737418240 bytes
3. 255 heads, 63 sectors/track, 1305 cylinders
4. Units = cylinders of 16065 * 512 = 8225280 bytes
5. Device Boot Start End Blocks Id System
6. /dev/sda1 * 1 1147 9213246 83 Linux
7. /dev/sda2 1148 1305 1269135 82 Linux swap
8. Disk /dev/sdb: 10.7 GB, 10737418240 bytes
9. 255 heads, 63 sectors/track, 1305 cylinders
10. Units = cylinders of 16065 * 512 = 8225280 bytes
11. Device Boot Start End Blocks Id System
12. /dev/sdb1 1 1305 10482381 5 Extended

步骤4 格式化分区

1. [root@rac1 ~]# mkfs -t ext3 -c /dev/sdb1
2. mke2fs 1.35 (28-Feb-2004)
3. Filesystem label=
4. OS type: Linux
5. Block size=4096 (log=2)
6. Fragment size=4096 (log=2)
7. 1310720 inodes, 2620595 blocks
8. 131029 blocks (5.00%) reserved for the super user
9. First data block=0
10. Maximum filesystem blocks=2684354560
11. 80 block groups
12. 32768 blocks per group, 32768 fragments per group
13. 16384 inodes per group
14. Superblock backups stored on blocks:
15. 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
16. Checking for bad blocks (read-only test): done
17. Writing inode tables: done
18. Creating journal (8192 blocks): done
19. Writing superblocks and filesystem accounting information: done
20. This filesystem will be automatically checked every 25 mounts or
21. 180 days, whichever comes first. Use tune2fs -c or -i to override.

步骤5:创建目录然后将该分区加挂到该目录下

1. [root@rac1 /]# mkdir /u01
2. [root@rac1 /]# mount /dev/sdb1 /u01

步骤6:修改/etc/fstab文件添加如下记录使系统每次重启后都能自动加载该分区

步骤7:

[root@rac1 /]#vi /etc/fstab
在文件的末尾填加如下内容

/dev/sdb1   /u01  ext3  defaults 1 2