454   Linux RedHat

1,查看磁盘

[root@v0A-123-100-244 ~]# fdisk -l

Disk /dev/xvda: 64.4 GB, 64424509440 bytes
255 heads, 63 sectors/track, 7832 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/xvda1 * 1 7335 58918356 83 Linux
/dev/xvda2 7336 7832 3992152+ 82 Linux swap / Solaris

Disk /dev/xvdb: 214.7 GB, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/xvdb doesn’t contain a valid partition table
[root@v0A-123-100-244 ~]# fdisk -l /dev/xvdb

Disk /dev/xvdb: 214.7 GB, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/xvdb doesn’t contain a valid partition table

 

2,进行分区

[root@v0A-123-100-244 ~]# fdisk /dev/xvdb
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 26108.
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): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
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
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-26108, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-26108, default 26108):
Using default value 26108

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

Calling ioctl() to re-read partition table.
Syncing disks.
[root@v0A-123-100-244 ~]#

 

3,格式化磁盘

[root@v0A-123-100-244 /]# mkfs -t ext3 /dev/xvdb1
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
26214400 inodes, 52428119 blocks
2621405 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
1600 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872

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

This filesystem will be automatically checked every 39 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.

4,挂载磁盘

[root@v0A-123-100-244 /]# mount -t ext3 /dev/xvdb1 /wcsapp
[root@v0A-123-100-244 /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 55G 3.9G 48G 8% /
tmpfs 8.0G 0 8.0G 0% /dev/shm
/dev/xvdb1 197G 188M 187G 1% /wcsapp
[root@v0A-123-100-244 /]# cd wcsapp/
[root@v0A-123-100-244 wcsapp]# ll
total 16
drwx—— 2 root root 16384 Mar 12 12:05 lost+found
[root@v0A-123-100-244 wcsapp]#




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