[root@localhost ~]# fdisk /dev/sdc #进入磁盘
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x45a3cadb.
Changes will remain in memory only, until you decide towrite them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): m
Command action
a toggle a bootable flag #设定可启动标记
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition #删除一个分区
l list known partition types #各分区类型所对应的ID
m print this menu #菜单
n add a new partition #添加一个分区
o create a new empty DOS partition table
p print the partition table #显示该磁盘下的当前分区信息
q quit without saving changes #不保存退出
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 andexit#保存退出
x extra functionality (experts only)
知道命令之后就可以进行分区了
Command (m for help): p //打印分区信息,可以看到当前并没有分区
Disk /dev/sdc: 21.5 GB, 21474836480bytes255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of16065 * 512 = 8225280bytes
Sector size (logical/physical): 512bytes / 512bytes
I/O size (minimum/optimal): 512bytes / 512bytes
Disk identifier: 0x45a3cadb
Device Boot Start End Blocks Id System
Command (m for help): n //创建一个新的分区
Command action
e extended//输入e为创建扩展分区
p primary partition (1-4) //输入p为创建逻辑分区
p
Partition number (1-4): 1//划分逻辑分区
First cylinder (1-2610, default 1): //我这里直接回车,是不想把该磁盘分成多个分区,把整个磁盘作为1个分区
Using default value1
Last cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610):
Using default value2610
Command (m for help): p //再次查看可以看到该磁盘已经有1个分区了
Disk /dev/sdc: 21.5 GB, 21474836480bytes255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of16065 * 512 = 8225280bytes
Sector size (logical/physical): 512bytes / 512bytes
I/O size (minimum/optimal): 512bytes / 512bytes
Disk identifier: 0x45a3cadb
Device Boot Start End Blocks Id System
/dev/sdc1 1261020964793+ 83 Linux
Command (m for help): w //保存分区
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
再次使用”fdisk -l”命令查看磁盘信息
Disk /dev/sdc: 21.5 GB, 21474836480bytes255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of16065 * 512 = 8225280bytes
Sector size (logical/physical): 512bytes / 512bytes
I/O size (minimum/optimal): 512bytes / 512bytes
Disk identifier: 0x406a4c58
Device Boot Start End Blocks Id System
/dev/sdc1 1261020964793+ 83 Linux
1
第三块磁盘/dev/sdc已经分区好了
五、格式化分区
//将/dev/sdc1格式化为ext3类型,好像大部分的磁盘都是格式化为ext3类型,具体为什么没有深入研究,暂时不清楚,想了解的朋友可以自己查一下
[root@localhost ~]# mkfs.ext3 /dev/sdc1
mke2fs 1.41.12 (17-May-2010)
文件系统标签=
操作系统:Linux
块大小=4096 (log=2)
分块大小=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
1310720 inodes, 5241198 blocks
262059 blocks (5.00%) reserved for the super user
第一个数据块=0
Maximum filesystem blocks=4294967296160block groups
32768 blocks per group, 32768 fragments per group8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000
正在写入inode表: 完成
Creating journal (32768 blocks): 完成
Writing superblocks and filesystem accounting information: 完成
This filesystem will be automatically checked every 31 mounts or180 days, whichever comes first. Use tune2fs -c or -i tooverride.