linux下添加新硬盘方法
fdisk Usage: fdisk [-l] [-b SSZ] [-u] device E.g.: fdisk /dev/hda(for the first IDE disk)or: fdisk /dev/sdc(for the third SCSI disk)
or: fdisk /dev/eda(for the first PS/2 ESDI drive)
or: fdisk /dev/rd/c0d0or: fdisk /dev/ida/c0d0(for RAID devices)
...
df -k
df -lh
查看有几块硬盘：fdisk -l
文件系统 1K-块 已用 可用 已用% 挂载点
/dev/sda3 3723848 705968 282871620% /
/dev/sda1 101089 9274 8659610% /boot
none 14520 0 14520 0% /dev/shm
对新硬盘分区，4G硬盘中划出1G作为新分区。给/home使用
fdisk /dev/hdaDevice 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 8322.
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): p
Disk /dev/hda: 4294 MB, 4294967296 bytes
16 heads, 63 sectors/track, 8322 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks IdSystem
Command (m for help): m
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)
p
Partition number (1-4): 1
First cylinder (1-8322, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-8322, default 8322): 1000G
Command (m for help): p
Disk /dev/hda: 4294 MB, 4294967296 bytes
16 heads, 63 sectors/track, 8322 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks IdSystem
/dev/hda1 1 1000 503968+83Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
//格式化新分区
mkfs.ext3 /dev/hda1mke2fs 1.32 (09-Nov-2002)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
126480 inodes, 503968 blocks
25198 blocks (5.00%) reserved for the super user
First data block=1
62 block groups
8192 blocks per group, 8192 fragments per group
2040 inodes per group
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 30 mounts or
180 days, whichever comes first.Use tune2fs -c or -i to override.
df -k文件系统 1K-块 已用 可用 已用% 挂载点
/dev/sda3 3723848 705992 282869220% /
/dev/sda1 101089 9274 8659610% /boot
none 14520 0 14520 0% /dev/shm
//挂上新分区
mount /dev/hda1 /home
df -k文件系统 1K-块 已用 可用 已用% 挂载点
/dev/sda3 3723848 705992 282869220% /
/dev/sda1 101089 9274 8659610% /boot
none 14520 0 14520 0% /dev/shm
/dev/hda1 488006 8239 454569 2% /home
自动挂载：
vi /etc/fstab
/dev/sdb5 /mnt/ljp1ext3 defaults 0 0
/dev/sdb6 /mnt/ljp2ext3 defaults 0 0手动挂载：
mount /dev/sdb5 /mnt/ljp1
mount /dev/sdb6 /mnt/ljp2
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