使用fdisk格式化硬盘
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增加数据盘
1）查看磁盘：
[root@test231 ~]
# fdisk -l
Disk
/dev/sda
: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors
/track
, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 4096 bytes
I
/O
size (minimum
/optimal
): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk
/dev/sdb
: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors
/track
, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0xc001c001
Device Boot Start End Blocks Id System
/dev/sdb1
* 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sdb2
64 9730 77637632 8e Linux LVM
Disk
/dev/mapper/VolGroup-lv_root
: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors
/track
, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk
/dev/mapper/VolGroup-lv_swap
: 3607 MB, 3607101440 bytes
255 heads, 63 sectors
/track
, 438 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk
/dev/mapper/VolGroup-lv_home
: 22.2 GB, 22204645376 bytes
255 heads, 63 sectors
/track
, 2699 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0x00000000
2）分区：
[root@test231 ~]
# fdisk /dev/sda
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xc841df40.
Changes will remain
in
memory only,
until
you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
The device presents a logical sector size that is smaller than
the physical sector size. Aligning to a physical sector (or optimal
I
/O
) size boundary is recommended, or performance may be impacted.
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): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-121601, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-121601, default 121601):
Using default value 121601
Command (m
for
help): wq
The partition table has been altered!
Calling ioctl() to re-
read
partition table.
Syncing disks.
3）再查看分区后：
[root@test231 ~]
# fdisk -l
Disk
/dev/sda
: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors
/track
, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 4096 bytes
I
/O
size (minimum
/optimal
): 4096 bytes / 4096 bytes
Disk identifier: 0xc841df40
Device Boot Start End Blocks Id System
/dev/sda1
1 121601 976760001 83 Linux
Partition 1 does not start on physical sector boundary.
Disk
/dev/sdb
: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors
/track
, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0xc001c001
Device Boot Start End Blocks Id System
/dev/sdb1
* 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sdb2
64 9730 77637632 8e Linux LVM
Disk
/dev/mapper/VolGroup-lv_root
: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors
/track
, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk
/dev/mapper/VolGroup-lv_swap
: 3607 MB, 3607101440 bytes
255 heads, 63 sectors
/track
, 438 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk
/dev/mapper/VolGroup-lv_home
: 22.2 GB, 22204645376 bytes
255 heads, 63 sectors
/track
, 2699 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical
/physical
): 512 bytes / 512 bytes
I
/O
size (minimum
/optimal
): 512 bytes / 512 bytes
Disk identifier: 0x00000000
4）格式化文件系统：
[root@test231 /]
# mkfs.ext4 /dev/sda1
mke2fs 1.43-WIP (20-Jun-2013)
/dev/sda1
alignment is offset by 512 bytes.
This may result
in
very poor performance, (re)-partitioning suggested.
Filesystem label=
OS
type
: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
61054976 inodes, 244190000 blocks
12209500 blocks (5.00%) reserved
for
the super user
First data block=0
Maximum filesystem blocks=4294967296
7453 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, 78675968,
102400000, 214990848
Allocating group tables:
done
Writing inode tables:
done
Creating journal (32768 blocks):
done
Writing superblocks and filesystem accounting information:
done
5）增加到fstab中：
echo
'/dev/sda1 /data ext4 defaults 0 0'
>>
/etc/fstab
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版权本文转自 pcnk 51CTO博客，原文链接：http://blog.51cto.com/nosmoking/1595979，如需转载请自行联系原作者
