实验：使用fdisk创建简单磁盘分区

1、实验：使用fdisk创建简单磁盘分区试验：用法创建容易磁盘分区 试验要求： /dev/sdb8 100m /dev/sdb9 100m root fdisk -l /dev/sdb 查看当前磁盘分区状况 disk /dev/sdb: 21.5 gb, 21474836480 bytes 255 heads, 63 sectors/ack, 2610 cylinders units = cylinders of 16065 * 512 = 8225280 bytes sector size (logical/physical): 512 bytes / 512 bytes i/o size (m

2、inimum/optimal): 512 bytes / 512 bytes disk entifier: 0xe7a49488 device boot start end blocks id system /dev/sdb1 1 65 522081 83 linux /dev/sdb2 66 2610 20442712+ 5 extend /dev/sdb5 66 79 112423+ 8e linux lvm /dev/sdb6 80 93 112423+ fd linux raid autodetect /dev/sdb7 94 107 112423+ fd linux raid aut

3、odetect root fdisk /dev/sdb warning: dos-compatible mode is depreed. it s strongly recommended to switch off the mode (command c ) and change display units to sectors (command u ). command (m for help): m 显示全部可选项 command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibi

4、lity flag d delete a partition l list known partition types m print this menu n a 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 veri

5、fy the partition table w table to disk and it x extra futionality (experts only) command (m for help): n command action l logical (5 or over) p primary partition (1-4) l 这里挑选l 表示要创建一个额外的规律分区 first cylinder (108-2610, default 108): using default value 108 last cylinder, +cylinders or +sizek,m,g (108-

6、2610, default 2610): +100m 这里指定新分区的大小是100m command (m for help): w 指定大小后，选w回车保存分区操作后退出 the partition table has been altered! root partprobe 用法此更新分区表，假如出错，需要重启来胜利更新分区表 root fdisk -l /dev/sdb 再次查看硬盘分区状况就可以看到新分区/dev/sdb8,但是此时还不行以用法，由于还没有指定文件系统格式，和挂载 disk /dev/sdb: 21.5 gb, 21474836480 bytes 255 heads,

7、63 sectors/track, 2610 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: 0xe7a49488 device boot start end blocks id system /dev/sdb1 1 65 522081 83 linux /dev/sdb2 66 261

8、0 20442712+ 5 extended /dev/sdb5 66 79 112423+ 8e linux lvm /dev/sdb6 80 93 112423+ fd linux raid autodetect /dev/sdb7 94 107 112423+ fd linux raid autodetect /dev/sdb8 108 121 112423+ 83 linux 重复以上步骤，再新建另一个分区/dev/sdb9 root fdisk -l /dev/sdb disk /dev/sdb: 21.5 gb, 21474836480 bytes 255 heads, 63 se

9、ctors/track, 2610 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: 0xe7a49488 device boot start end blocks id system /dev/sdb1 1 65 522081 83 linux /dev/sdb2 66 2610 204

10、42712+ 5 extended /dev/sdb5 66 79 112423+ 8e linux lvm /dev/sdb6 80 93 112423+ fd linux raid autodetect /dev/sdb7 94 107 112423+ fd linux raid autodetect /dev/sdb8 108 121 112423+ 83 linux /dev/sdb9 122 135 112423+ 83 linux 此时，/dev/sdb8 /dev/sdb9还无法用法，由于还没有指定文件系统类型，和挂载 root mount /dev/sdb8 /mnt 由于还没

11、有指定文件系统格式， 所以挂载会失败，无法识别 -t ext4 /dev/sdb8 用ext4格式格式化分区 1.41.12 (17-may-2010) filesystem label= os type: linux block size=1024 (log=0) fragment size=1024 (log=0) stride=0 blocks, stripe width=0 blocks 28112 inodes, 112420 blocks 5621 blocks (5.00%) reserved for the per user first data block=1 maximum

12、 filesystem blocks=67371008 14 block groups 8192 blocks per group, 8192 fragments per group 2008 inodes per group superblock backups stored on blocks: 8193, 24577, 40961, 57345, 73729 writing inode tables: done creating journal (4096 blocks): done writing superblocks and filesystem accounting infoation: done this filesystem will be automa