[root@r~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 20G 5.5G 14G 30% / tmpfs 1.9G 0 1.9G 0% /dev/shm [root@r ~]# fdisk -l Disk /dev/vda: 21.5 GB, 21474836480 bytes 255 heads, 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: 0x00078f9c Device Boot Start End Blocks Id System /dev/vda1 * 1 2611 20970496 83 Linux Disk /dev/vdb: 214.7 GB, 214748364800 bytes 16 heads, 63 sectors/track, 416101 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
[root@r ~]# fdisk /dev/vdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x1aed48fa.
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)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help):
Command (m for help): p #打印分区列表 Disk /dev/vdb: 214.7 GB, 214748364800 bytes 16 heads, 63 sectors/track, 416101 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: 0x1aed48fa Device Boot Start End Blocks Id System Command (m for help): m #m查看帮助 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)
Command (m for help): n
Command action
e extended
p primary partition (1-4)
1
Invalid partition number for type `1'
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-416101, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-416101, default 416101):
Using default value 416101
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@r ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 20G 5.5G 14G 30% / tmpfs 1.9G 0 1.9G 0% /dev/shm [root@r ~]# fdisk -l Disk /dev/vda: 21.5 GB, 21474836480 bytes 255 heads, 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: 0x00078f9c Device Boot Start End Blocks Id System /dev/vda1 * 1 2611 20970496 83 Linux Disk /dev/vdb: 214.7 GB, 214748364800 bytes 16 heads, 63 sectors/track, 416101 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: 0x1aed48fa Device Boot Start End Blocks Id System /dev/vdb1 1 416101 209714872+ 83 Linux
在使用硬盘之前必须对其分区进行格式化,并挂载:
[root@r ~]# mkfs.ext3 /dev/vdb1
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
13107200 inodes, 52428718 blocks
2621435 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
1600 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 35 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@r ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 20G 5.5G 14G 30% / tmpfs 1.9G 0 1.9G 0% /dev/shm [root@r ~]# mkdir /hdd1 [root@r ~]# mount /dev/vdb1 /hdd1 [root@r ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 20G 5.5G 14G 30% / tmpfs 1.9G 0 1.9G 0% /dev/shm /dev/vdb1 197G 188M 187G 1% /hdd1