3. 启动Ubuntu系统,操作命令如下:
#1 sudo fdisk -l // 查看现有系统磁盘空间
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Disk /dev/sda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000af383
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1244 9992398+ 83 Linux
/dev/sda2 1245 1305 489982+ 5 Extended
/dev/sda5 1245 1305 489951 82 Linux swap / Solaris
Disk /dev/sdb: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/sdb doesn't contain a valid partition table
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以上信息可以看到新增加的磁盘空间 /dev/sdb ,这里我们需要给新的磁盘空间分区。
#2 fdisk /dev/sdb
#3 Command (m for help): m // 键入m,可看到帮助信息
打印结果如下:
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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)
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#4 Command (m for help): n
打印结果如下:
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Command action
e extended
p primary partition (1-4)
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键入:p,选择添加主分区;
键入:1,选择主分区编号为1, 这样创建后的主分区为sdb1;
#5 First Cylinder(1-1014,default 1): 1 // 第一个主分区起始的磁盘块数
#6 Last cylindet or +siza or +sizeM or +sizeK: +1024MB // 可以是以MB为单位的数字或者以磁盘块数,这里我们输入+1024MB表示分区大小为1G。