[root@linux1 ~]# fdisk -l Disk /dev/hda: 5368 MB, 5368709120 bytes 255 heads, 63 sectors/track, 652 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 13 104391 83 Linux /dev/hda2 14 652 5132767 8e Linux LVM Disk /dev/hdb: 2147 MB, 2147483648 bytes 16 heads, 63 sectors/track, 4161 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Disk /dev/hdb doesn't contain a valid partition table 上面紅色標識行可以看出，我添加了一塊新硬盤/dev/hdb，大小為2G，未分區格式化狀態。
2.用Fdisk /dev/hdb來進行分區操作。
[root@linux1 ~]# fdisk /dev/hdb 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.
The number of cylinders for this disk is set to 4161. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): n //輸入N表示新建一個分區 Command action e extended p primary partition (1-4) p //p 表示建立一個原始分區 Partition number (1-4): 1 //1 表示此分區編號為1. First cylinder (1-4161, default 1): 1 //1表示使用默認起始柱面號.如果要分多個區的話，先盤算好要多大，再輸入數字 Last cylinder or size or sizeM or sizeK (1-4161, default 4161): // 輸入: 回車 表示使用默認結束柱面號.即此分區使用整個硬盤空間
Using default value 4161
Command (m for help): w //保存分區
The partition table has been altered!
Calling ioctl() to re-read partition table. Syncing disks.
3.再次查看當前分區狀態： [root@linux1 ~]# fdisk -l
Disk /dev/hda: 5368 MB, 5368709120 bytes 255 heads, 63 sectors/track, 652 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System /dev/hda1 * 1 13 104391 83 Linux /dev/hda2 14 652 5132767 8e Linux LVM
Disk /dev/hdb: 2147 MB, 2147483648 bytes 16 heads, 63 sectors/track, 4161 cylinders Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System /dev/hdb1 1 4161 2097112 83 Linux 可以看出，已經出來了一個/dev/hdb1的新分區。下一步將其格式化，再使用
4.用mkfs.ext3格式化新分區 [root@linux1 ~]# mkfs.ext3 /dev/hdb1 mke2fs 1.39 (29-May-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 262144 inodes, 524278 blocks 26213 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=536870912 16 block groups 32768 blocks per group, 32768 fragments per group 16384 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912
