Linux 挂载硬盘方法

申请的虚拟机因总宕机,处理完之后多分配了我100G空间,还是狠讲究的嘛,挂载方法如下：

初始磁盘挂载情况：

[root@wmstest ~]# df-h
Filesystem Size Used Avail Use%Mounted on
/dev/sda2 19G 9.0G 9.1G 50%/
/dev/sda4 44G 181M 41G 1%/u01
/dev/sda1 99M 22M 73M 23%/boot
tmpfs 4.0G 0 4.0G 0%/dev/shm

查看磁盘：
[root@wmstest ~]# fdisk -l

Disk /dev/sda: 85.8 GB,85899345920 bytes
255 heads, 63 sectors/track, 10443cylinders
Units = cylinders of 16065 * 512 =8225280 bytes

Device Boot Start End Blocks IdSystem
/dev/sda1 * 1 13 104391 83Linux
/dev/sda2 14 2563 20482875 83Linux
/dev/sda3 2564 4603 16386300 82 Linuxswap / Solaris
/dev/sda4 4604 10443 46909800 83Linux

Disk/dev/sdb: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054cylinders
Units = cylinders of 16065 * 512 =8225280 bytes


用fdisk对磁盘分区：

[root@wmstest ~]# fdisk/dev/sdb
Device contains neither a valid DOSpartition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changeswill remain in memory only,
until you decide to write them. Afterthat, of course, the previous
content won't berecoverable.

The number of cylinders for this diskis set to 13054.
There is nothing wrong with that, butthis is larger than 1024,
and could in certain setups causeproblems with:
1) software that runs at boot time(e.g., old versions of LILO)
2) booting and partitioning softwarefrom other OSs
(e.g., DOS FDISK, OS/2FDISK)
Warning: invalid flag 0x0000 ofpartition table 4 will be corrected by w(rite)

Command (m for help):p

Disk /dev/sdb: 107.3 GB,107374182400 bytes
255 heads, 63 sectors/track, 13054cylinders
Units = cylinders of 16065 * 512 =8225280 bytes

Device Boot Start End Blocks IdSystem

Command (m for help):m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibilityflag
d delete a partition
l list known partitiontypes
m print this menu
n add a new partition
o create a new empty DOS partitiontable
p print the partitiontable
q quit without savingchanges
s create a new empty Sundisklabel
t change a partition's systemid
u change display/entryunits
v verify the partitiontable
w write table to disk andexit
x extra functionality (expertsonly)

Command (m for help):n
Command action
e extended
p primary partition(1-4)
p
Partition number (1-4):1
First cylinder (1-13054, default1):
Using default value 1
Last cylinder or +size or +sizeM or+sizeK (1-13054, default 13054):
Using default value 13054

Command (m for help):p

Disk /dev/sdb: 107.3 GB,107374182400 bytes
255 heads, 63 sectors/track, 13054cylinders
Units = cylinders of 16065 * 512 =8225280 bytes

Device Boot Start End Blocks IdSystem
/dev/sdb1 113054 104856223+ 83 Linux

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

Calling ioctl() to re-readpartition table.
Syncing disks.

再次查看磁盘：

[root@wmstest ~]# fdisk-l

Disk /dev/sda: 85.8 GB,85899345920 bytes
255 heads, 63 sectors/track, 10443cylinders
Units = cylinders of 16065 * 512 =8225280 bytes

Device Boot Start End Blocks IdSystem
/dev/sda1 * 1 13 104391 83Linux
/dev/sda2 14 2563 20482875 83Linux
/dev/sda3 2564 4603 16386300 82 Linuxswap / Solaris
/dev/sda4 4604 10443 46909800 83Linux

Disk /dev/sdb: 107.3 GB,107374182400 bytes
255 heads, 63 sectors/track, 13054cylinders
Units = cylinders of 16065 * 512 =8225280 bytes

Device Boot Start End Blocks IdSystem
/dev/sdb1 1 13054 104856223+ 83Linux


格式化磁盘：

[root@wmstest ~]#mkfs -t ext3/dev/sdb1
mke2fs 1.39(29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096(log=2)
13107200 inodes, 26214055blocks
1310702 blocks (5.00%) reserved forthe super user
First data block=0
Maximum filesystemblocks=4294967296
800 block groups
32768 blocks per group, 32768fragments per group
16384 inodes per group
Superblock backups stored onblocks:
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 filesystemaccounting information: done

This filesystem will beautomatically checked every 39 mounts or
180 days, whichever comes first. Usetune2fs -c or -i to override.


挂载磁盘：
[root@wmstest ~]#mount /dev/sdb1 /u01/

[root@wmstest ~]#df -h
Filesystem SizeUsed Avail Use% Mounted on
/dev/sda2 19G 9.0G9.1G 50% /
/dev/sda4 99G 188M94G 1% /u01
/dev/sda1 99M 22M73M 23% /boot
tmpfs 4.0G 0 4.0G0% /dev/shm
/dev/sdb1 99G 188M94G 1% /u01

设置开机自动挂载：
[root@wmstest ~]#vi /etc/fstab
/dev/sdb1 /u01ext3 defaults 0 0