【LINUX學習】磁碟分割之建立primary和logical 分割槽

[root@localhost ~]# fdisk -l
Disk /dev/sda: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14         522     4088542+  83  Linux

Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1   *           1         131     1052226   82  Linux swap / Solaris

Disk /dev/sdd: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System

[root@localhost ~]# fdisk /dev/sdb
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.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-391, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-391, default 391): 150
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         150     1204843+  83  Linux

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
e --建立擴充分割槽
Partition number (1-4): 4
First cylinder (151-391, default 151):
Using default value 151
Last cylinder or +size or +sizeM or +sizeK (151-391, default 391):
Using default value 391
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         150     1204843+  83  Linux
/dev/sdb4             151         391     1935832+   5  Extended
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l   --在擴充分割槽中建立邏輯分割槽，因為擴充分割槽是不能夠直接被使用的，只有做成擴充分割槽時，才能夠被使用。
First cylinder (151-391, default 151):
Using default value 151
Last cylinder or +size or +sizeM or +sizeK (151-391, default 391): 250
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         150     1204843+  83  Linux
/dev/sdb4             151         391     1935832+   5  Extended
/dev/sdb5             151         250      803218+  83  Linux
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l --在擴充分割槽中建立邏輯分割槽
First cylinder (251-391, default 251):
Using default value 251
Last cylinder or +size or +sizeM or +sizeK (251-391, default 391):
Using default value 391
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         150     1204843+  83  Linux
/dev/sdb4             151         391     1935832+   5  Extended
/dev/sdb5             151         250      803218+  83  Linux
/dev/sdb6             251         391     1132551   83  Linux

Command (m for help): w  ---儲存
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# fdisk -l
Disk /dev/sda: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14         522     4088542+  83  Linux

Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         150     1204843+  83  Linux
/dev/sdb4             151         391     1935832+   5  Extended
/dev/sdb5             151         250      803218+  83  Linux
/dev/sdb6             251         391     1132551   83  Linux
[root@localhost ~]#