linux下目录(扩容)挂载磁盘

1.常用命令

查看硬盘的分区 #sudo fdisk -l

查看IDE硬盘信息 #sudo hdparm -i /dev/hda

查看STAT硬盘信息 #sudo hdparm -I /dev/sda 或 #sudo apt-get install blktool #sudo blktool /dev/sda id

查看硬盘剩余空间 #df -h #df -H

优盘没法卸载 #sync fuser -km /media/usbdisk

下面是相关命令的解释：

#df -hl 查看磁盘剩余空间

#df -h 查看每个根路径的分区大小

#du -sh [目录名] 返回该目录的大小

#du -sm [文件夹] 返回该文件夹总M数

#fdisk -l

[root@VM_28_226_centos ~]# fdisk -l

Disk /dev/vda: 8589 MB, 8589901824 bytes

255 heads, 63 sectors/track, 1044 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: 0xcd6e8236

Device Boot Start End Blocks Id System

/dev/vda1 * 1 1044 8385898+ 83 Linux

Disk /dev/vdb: 268.4 GB, 268435456000 bytes

16 heads, 63 sectors/track, 520126 cylinders

Units = cylinders of 1008 * 512 = 516096 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk /dev/vdb doesn't contain a valid partition table

先格式化这个磁盘

#mkfs -t ext3 /dev/vdb

把磁盘挂载到/data 目录

#mount /dev/vdb /data/

设置开机自动挂载

#vim /etc/fstab

添加一条

/dev/vdb /data ext3 defaults 0 0

转：http://blog.csdn.net/xiaoreqing/article/details/51743129