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[经验] linux下添加新硬盘方法

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发表于 2014-2-9 19:20:26 | 显示全部楼层 |阅读模式
  1. fdisk
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Usage: fdisk [-l] [-b SSZ] [-u] device    E.g.: fdisk /dev/hda  (for the first IDE disk)# ^; b( D9 B- L& g
      or: fdisk /dev/sdc  (for the third SCSI disk)1 Z. o! F6 n* l7 \+ }7 t
      or: fdisk /dev/eda  (for the first PS/2 ESDI drive)) L7 H! G0 ~+ D+ ^7 B
      or: fdisk /dev/rd/c0d0  or: fdisk /dev/ida/c0d0  (for RAID devices)
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  1. df -k. m! C! m3 h4 J' z6 @; A5 \7 [
  2. df -lh& n) a$ @+ q7 A9 h; K9 N) _
  3. 查看有几块硬盘:fdisk -l
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文件系统               1K-块        已用     可用 已用% 挂载点7 T! |7 W5 ^, g& @# e
    /dev/sda3              3723848    705968   2828716  20% /9 T" A- ?( W& h( {4 V! z) J
    /dev/sda1               101089      9274     86596  10% /boot% d' m8 L- ?2 p6 h1 T
    none                     14520         0     14520   0% /dev/shm1 V/ f3 D1 p4 d
    对新硬盘分区,4G硬盘中划出1G作为新分区。给/home使用
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  1. fdisk /dev/hda
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Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel  S# w3 T7 ^) M5 C/ E' l- l
    Building a new DOS disklabel. Changes will remain in memory only,( V0 F* X3 [8 u. N5 W( e7 B
    until you decide to write them. After that, of course, the previous
$ s- r& w4 P! Z$ }$ t' v    content won't be recoverable.
2 I! T, S3 C# [7 ~- Q) C    The number of cylinders for this disk is set to 8322.
* [9 b& R2 C$ O% ]0 T    There is nothing wrong with that, but this is larger than 1024,, i5 G$ F, k1 a( s7 w, A
    and could in certain setups cause problems with:) J# A0 x( E3 E+ F+ J
    1) software that runs at boot time (e.g., old versions of LILO)
1 l2 |4 X- l2 ~/ p    2) booting and partitioning software from other OSs4 C# L# X! u3 k
       (e.g., DOS FDISK, OS/2 FDISK)
: g- e- m' J2 _3 i+ U    Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)4 }. L% U0 u) [8 i( _" Q0 |" D
    Command (m for help): p: n' L  K# t, d# s; _
    Disk /dev/hda: 4294 MB, 4294967296 bytes+ @0 a: G3 ~* J2 t& j- n
    16 heads, 63 sectors/track, 8322 cylinders
1 d9 N, L- A$ b0 D8 y5 r0 |    Units = cylinders of 1008 * 512 = 516096 bytes
) V, y+ u1 l1 A# E6 ]4 _       Device Boot    Start       End    Blocks   Id  System/ c7 }+ d% \- n
    Command (m for help): m: G4 D1 \1 e7 g# {+ a
    Command action8 o0 D/ a$ ]! y! W. p
       a   toggle a bootable flag5 T! G9 y$ w! ]8 ?, p" C" P
       b   edit bsd disklabel
5 `8 @% ^( s) g: J' M       c   toggle the dos compatibility flag
2 H6 x7 Z2 H; {0 e       d   delete a partition8 Y4 E9 X6 O! ?$ u, u3 f% p+ q! u
       l   list known partition types
0 [- ^0 b. v, q# }       m   print this menu* [) y& s( y4 L7 e8 i
       n   add a new partition* V+ @- K% C& {! j8 T9 B
       o   create a new empty DOS partition table
# I- M: a7 U1 L       p   print the partition table) N4 u$ h6 g, {8 X& E
       q   quit without saving changes) ?5 K* |. U+ ]
       s   create a new empty Sun disklabel4 d1 U8 R# \  d3 d4 B, V+ ?/ W
       t   change a partition's system id
7 ?. |$ A$ X9 x       u   change display/entry units
. L- n2 @! C  l! F       v   verify the partition table
: y, d% G+ D2 H& l3 \, H% n       w   write table to disk and exit
& X$ A; A3 D' M: R* `       x   extra functionality (experts only)
3 J6 k4 ?( b" a  |8 Q    Command (m for help): n
8 ^( ]/ o3 e) ^) ^* K    Command action5 [- O2 P" M1 |. R- m
       e   extended2 t& I% i4 W0 P7 l! p3 f$ o  G$ ?
       p   primary partition (1-4): D5 A+ r1 L! M# z" ?! Q+ H
    p! G9 V- s$ N3 j1 b  T3 J
    Partition number (1-4): 1. b" l, V% `+ z
    First cylinder (1-8322, default 1):
, `- Q5 k& d1 F    Using default value 11 t6 n& c8 R/ L0 @* ?! n& b
    Last cylinder or +size or +sizeM or +sizeK (1-8322, default 8322): 1000G
0 {) {5 A/ I& m; U3 h# r    Command (m for help): p& X( O2 z! f* P" v. x- Y
    Disk /dev/hda: 4294 MB, 4294967296 bytes3 w" q. o& E! [+ t* ?' Z' k9 R
    16 heads, 63 sectors/track, 8322 cylinders
/ v  U$ c9 O, o; I1 N8 T    Units = cylinders of 1008 * 512 = 516096 bytes5 @: Q# i  Q& X* X; N6 E
       Device Boot    Start       End    Blocks   Id  System# x+ w' M- ~8 O+ X$ b
    /dev/hda1             1      1000    503968+  83  Linux; Z# x' e! `9 \' P  I
    Command (m for help): w  F, c$ P- ]4 g( e
    The partition table has been altered!4 ~, n+ `0 X2 s+ l5 p
    Calling ioctl() to re-read partition table.
& M- g9 i* x; r7 R+ [    Syncing disks.
! r0 k4 j4 e: L9 `1 q5 h" C    //格式化新分区0 k: Y( O( l  q! X, Q# K7 p' z
  1. mkfs.ext3 /dev/hda1
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mke2fs 1.32 (09-Nov-2002)* x/ K# @# g  f1 W, t' W1 F
    Filesystem label=. _" Q9 M1 W+ A
    OS type: Linux
$ {2 U: M' S/ |& k+ q+ r. R$ F    Block size=1024 (log=0)
+ z6 s8 c7 G/ X    Fragment size=1024 (log=0)5 \) m2 z. _: l% c
    126480 inodes, 503968 blocks6 W. }! c- ?8 k5 _
    25198 blocks (5.00%) reserved for the super user. {3 M  L1 a' s/ q  C
    First data block=1" N; }7 A$ }2 o1 n
    62 block groups
" Q. I6 T0 J& k' P    8192 blocks per group, 8192 fragments per group
  }8 R, V+ P5 u1 I+ {" }: `- o    2040 inodes per group0 _  V6 i& z& n  k. w2 g3 v
    Superblock backups stored on blocks:
# H6 v8 T3 G. G2 b7 w. A            8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409- Y  f& F- Y" R4 g/ v
    Writing inode tables: done                           
% M' e1 A- I/ U: ?9 D    Creating journal (8192 blocks): done
8 r  l! E' Y9 J" v! X    Writing superblocks and filesystem accounting information: done- \0 b% |" n6 K3 R1 b7 M5 A
    This filesystem will be automatically checked every 30 mounts or; z/ X8 S+ v+ B1 h" x3 r9 H+ H
    180 days, whichever comes first.  Use tune2fs -c or -i to override.
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  1. df -k
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文件系统               1K-块        已用     可用 已用% 挂载点
0 W  ^% R3 o, l4 f; \/ V5 Q) [    /dev/sda3              3723848    705992   2828692  20% /
3 N5 i, h8 |4 q! D! B! F    /dev/sda1               101089      9274     86596  10% /boot0 n+ l* G8 j6 v7 M, ]! k
    none                     14520         0     14520   0% /dev/shm
# Z8 v; x' H. d6 J    //挂上新分区" L" [3 ?# Z, e& {
  1. mount /dev/hda1 /home
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  2. df -k
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文件系统               1K-块        已用     可用 已用% 挂载点6 J$ {8 h& ?4 M/ U6 a
    /dev/sda3              3723848    705992   2828692  20% /, H0 L' R, y! ]( \) S
    /dev/sda1               101089      9274     86596  10% /boot8 l! p) p+ h2 h# E& W
    none                     14520         0     14520   0% /dev/shm
/ Y" y4 ~! R6 m4 M* `% Z) W4 Z    /dev/hda1               488006      8239    454569   2% /home
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* X" X7 z/ A* z& W+ @/ R& E自动挂载:  X' U' n, z4 ~$ x) ?7 B
  1.           vi /etc/fstab
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  3.           /dev/sdb5 /mnt/ljp1  ext3     defaults     0 0# y1 }6 ?' t4 m9 |
  4. + u. N& [0 C+ W; X0 }
  5.           /dev/sdb6 /mnt/ljp2  ext3     defaults     0 0
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手动挂载:1 H. a" g( b. @, C6 I* S
  1.           mount /dev/sdb5 /mnt/ljp1
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  3.           mount /dev/sdb6 /mnt/ljp2
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