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Usage: fdisk [-l] [-b SSZ] [-u] device E.g.: fdisk /dev/hda (for the first IDE disk)
+ X: l- q$ ?: ~( ^; G( x4 y3 p or: fdisk /dev/sdc (for the third SCSI disk). S" a, J: a" ?. b8 J. T/ s2 k
or: fdisk /dev/eda (for the first PS/2 ESDI drive)
( y( W# k# k$ G7 O# F, P or: fdisk /dev/rd/c0d0 or: fdisk /dev/ida/c0d0 (for RAID devices)& Z7 M: p7 H3 B% v; i* x4 K1 [
...
" A6 D* \- U: s- df -k5 F, d& X2 Q) d- ^9 }3 j2 X4 e" B
- df -lh1 L6 R& O/ e& W+ Y
- 查看有几块硬盘:fdisk -l
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复制代码 文件系统 1K-块 已用 可用 已用% 挂载点
$ q" D M+ Y2 v1 B* K /dev/sda3 3723848 705968 2828716 20% /
2 e6 i' k" S5 |+ R: V$ w /dev/sda1 101089 9274 86596 10% /boot" O+ g! a* s v' f) p6 V! |
none 14520 0 14520 0% /dev/shm6 h+ ]! |, [$ s* U/ L# `2 G
对新硬盘分区,4G硬盘中划出1G作为新分区。给/home使用" I) x B9 p# c' K* s
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel/ Z& \$ t; q: u Z" S" L2 l
Building a new DOS disklabel. Changes will remain in memory only,
0 ], t% X: t! t* `( n; N4 f until you decide to write them. After that, of course, the previous
3 O! t$ v9 c& G+ N9 s- p- a content won't be recoverable.
$ X! ~8 N/ f4 Z" r" Q9 ]( E1 d; P( Z The number of cylinders for this disk is set to 8322.2 w6 H0 G2 {1 @) o2 n
There is nothing wrong with that, but this is larger than 1024,
0 e [' B& y) I. I; u5 p) U9 d/ Y and could in certain setups cause problems with:) d F+ W8 i5 Y$ g; a8 a
1) software that runs at boot time (e.g., old versions of LILO)
) C$ s& A+ B1 t; x 2) booting and partitioning software from other OSs" | A+ Y6 [3 R
(e.g., DOS FDISK, OS/2 FDISK)
8 I) D: Q3 u5 r& q" V Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)( F) S- y! `( `8 j! J
Command (m for help): p$ x5 ^$ v m4 D9 ^/ C% O
Disk /dev/hda: 4294 MB, 4294967296 bytes4 L9 o# D" e; W* O6 a! K) ]) Y" A
16 heads, 63 sectors/track, 8322 cylinders
5 b) {# t; I/ G- O( W) Q Units = cylinders of 1008 * 512 = 516096 bytes: [5 P# ` I+ }+ O {- v
Device Boot Start End Blocks Id System# P4 `( J) M/ x, e
Command (m for help): m
' t+ d: V* W _7 e Command action
2 l3 N ?: ~4 w* f a toggle a bootable flag# v: `& s( R% `! ~0 Q, M
b edit bsd disklabel
& }1 M4 H* p5 y* S$ s c toggle the dos compatibility flag: x' @! K7 c: v- S b6 x
d delete a partition
. p* i+ n+ z( b; P l list known partition types# m o( j5 Z' Z( `+ o: H1 ~3 L& ^* O
m print this menu
. x B1 p. s# _9 r n add a new partition X3 D$ F/ b& E. X, m$ y1 w
o create a new empty DOS partition table
4 \9 Y6 i; |$ P3 T: o p print the partition table3 |" i. I' s7 P* @+ [: \ J
q quit without saving changes' m& f2 v: ~% ?
s create a new empty Sun disklabel
, O ]; O: r9 v2 L t change a partition's system id
8 E1 x- P, P3 J Z6 B# b1 r- H u change display/entry units
; b6 R, N6 t- N4 L5 f, e v verify the partition table
, H* g9 ^# m$ G9 R w write table to disk and exit
' T ? y8 Y3 c8 f/ s. P3 G- i x extra functionality (experts only). b( q7 F8 A# k6 I
Command (m for help): n
! ], U! Q: S5 [! e. G( o% H$ m ~ Command action' E0 s, x! U6 _
e extended9 n5 `+ b" R$ f( R8 B
p primary partition (1-4)1 J3 d' {. P7 \. Z+ t/ q; h
p p" q- M- i7 o0 M
Partition number (1-4): 1- x# u1 I7 ~6 u- t2 C
First cylinder (1-8322, default 1):
4 }+ q4 B2 t1 ?5 m- E5 ]5 ~ Using default value 1
' ~) Y5 p2 y! _2 R8 p: t/ Y Last cylinder or +size or +sizeM or +sizeK (1-8322, default 8322): 1000G, X+ i g0 H% n' c5 l& U! O
Command (m for help): p
- Z: X2 y7 v4 \( _& z0 r Disk /dev/hda: 4294 MB, 4294967296 bytes
! |7 R3 h/ r) S/ i 16 heads, 63 sectors/track, 8322 cylinders
* { _ e; v' ~ Units = cylinders of 1008 * 512 = 516096 bytes
9 D& r a1 P; z. V9 G1 |% K Device Boot Start End Blocks Id System
3 J1 x* N t7 `/ K" ~ /dev/hda1 1 1000 503968+ 83 Linux; k4 b9 k4 Y: `- H# ~8 O
Command (m for help): w+ M! r6 A ?1 o1 `
The partition table has been altered!$ q( K" B; t6 V
Calling ioctl() to re-read partition table.
! }- V# q( C z! C7 [3 ^: ~4 Q Syncing disks.; j+ q, f( v4 I) X. H
//格式化新分区
* ~7 ^% ^3 P, t( R- O# [mke2fs 1.32 (09-Nov-2002)0 H& u( S: O% S; _: w# [* {* F9 W
Filesystem label=# p( o1 s. d- e
OS type: Linux
+ h9 Z% D, ]3 f- U) J Block size=1024 (log=0), X% P, Y. C+ A! B) c5 |
Fragment size=1024 (log=0)! W- R( D/ D- W: ~7 ~; ?. g1 K
126480 inodes, 503968 blocks% F7 P `0 i3 R* t0 F! A
25198 blocks (5.00%) reserved for the super user8 _- w+ f1 _" o, }
First data block=1
, q' O# t) ~' f# H2 Z; b! g 62 block groups
, W$ i7 k9 @' Z8 M& W 8192 blocks per group, 8192 fragments per group
9 D1 j5 V. J E: K0 [ 2040 inodes per group/ T& D1 F- P5 I8 N; K! |# P
Superblock backups stored on blocks: # H2 X# t& U3 j6 T, K. H, l [2 y$ p2 m
8193, 24577, 40961, 57345, 73729, 204801, 221185, 4014090 i+ B. E1 ]& e& ?2 `, Z
Writing inode tables: done
* h3 s! p0 E9 T6 v1 p& A Creating journal (8192 blocks): done
5 J2 u6 S6 w! |: m$ \% u Writing superblocks and filesystem accounting information: done- h/ A/ [, A% c) Q( U0 ~
This filesystem will be automatically checked every 30 mounts or' R3 ?* n1 S- d# G3 d; R0 A. f2 ^3 F
180 days, whichever comes first. Use tune2fs -c or -i to override. C. y- w! C3 |0 \9 L; L
文件系统 1K-块 已用 可用 已用% 挂载点
; t7 |+ Y9 A, M% ]1 u( | /dev/sda3 3723848 705992 2828692 20% /
* f6 y5 `; |; w; F; ] /dev/sda1 101089 9274 86596 10% /boot. z" v+ x2 G8 _1 w
none 14520 0 14520 0% /dev/shm1 i l+ x! e8 [! Z) A! { T
//挂上新分区5 [9 |, P6 K4 x L/ x1 ~! z( a
- mount /dev/hda1 /home
9 h& ^" o6 w" c3 @$ {0 d Q6 ` - df -k
复制代码 文件系统 1K-块 已用 可用 已用% 挂载点
+ {: K7 z6 k, A* L4 V/ \5 p: i /dev/sda3 3723848 705992 2828692 20% /
1 F* C* Z( C: g+ v /dev/sda1 101089 9274 86596 10% /boot
! s6 u4 v: z' @& H+ E! r none 14520 0 14520 0% /dev/shm& K, @8 z! I0 `
/dev/hda1 488006 8239 454569 2% /home
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自动挂载:
5 V* i, d. u( p3 y. l3 @- vi /etc/fstab
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- /dev/sdb5 /mnt/ljp1 ext3 defaults 0 0
8 J' s2 K% ?# e1 a# ?0 Z. ? - $ a8 ?/ d% F4 U9 }2 b% F6 e
- /dev/sdb6 /mnt/ljp2 ext3 defaults 0 0
复制代码 手动挂载:4 ]$ y: x0 \" m2 K H6 n
- mount /dev/sdb5 /mnt/ljp1
$ k" n- i4 e0 C3 i. W& _% e
5 o" @+ y. N& }' t- mount /dev/sdb6 /mnt/ljp2
复制代码 % J. Y0 H2 Q' |2 I
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