Linux 挂载分区 + swap 分区

分区默认的挂载目录是 /mnt目录

挂载的时候必须挂载到一个已经存在的挂载点 mkdir -p /mnt/imooc

mount /dev/sdb1 /mnt/imooc 把 dev/sdb1 挂载到 mnt/imooc

umount /dev/sdb1 /mnt/imooc 这是解挂载

vim + /etc/fstab : 编写挂载硬盘的文件的位置

可以实现分区的自动挂载

加入 /dev/sdb1 /mnt/imooc defaults 0 0

如何为硬盘添加一个swap交换分区

第一，建立一个普通的Linux分区

讲一个主分区或者逻辑分区 变成swap分区

t 82

将swap分区格式化： mkswap /dev/sdb6

[root@yyq ~]# fdisk /dev/sdb

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): p

Disk /dev/sdb: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 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: 0x0d716927

Device Boot Start End Blocks Id System
/dev/sdb1 1 132 1060258+ 83 Linux
/dev/sdb2 133 264 1060290 83 Linux
/dev/sdb3 265 522 2072385 5 Extended
/dev/sdb5 265 329 522081 83 Linux
/dev/sdb6 330 522 1550241 83 Linux

Command (m for help): t
Partition number (1-6): 6
Hex code (type L to list codes): L

0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 39 Plan 9 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIX root 3c PartitionMagic 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 40 Venix 80286 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
4 FAT16 <32M 41 PPC PReP Boot 85 Linux extended c7 Syrinx
5 Extended 42 SFS 86 NTFS volume set da Non-FS data
6 FAT16 4d QNX4.x 87 NTFS volume set db CP/M / CTOS / .
7 HPFS/NTFS 4e QNX4.x 2nd part 88 Linux plaintext de Dell Utility
8 AIX 4f QNX4.x 3rd part 8e Linux LVM df BootIt
9 AIX bootable 50 OnTrack DM 93 Amoeba e1 DOS access
a OS/2 Boot Manag 51 OnTrack DM6 Aux 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 52 CP/M 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 53 OnTrack DM6 Aux a0 IBM Thinkpad hi eb BeOS fs
e W95 FAT16 (LBA) 54 OnTrackDM6 a5 FreeBSD ee GPT
f W95 Ext'd (LBA) 55 EZ-Drive a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 56 Golden Bow a7 NeXTSTEP f0 Linux/PA-RISC b
11 Hidden FAT12 5c Priam Edisk a8 Darwin UFS f1 SpeedStor
12 Compaq diagnost 61 SpeedStor a9 NetBSD f4 SpeedStor
14 Hidden FAT16 <3 63 GNU HURD or Sys ab Darwin boot f2 DOS secondary
16 Hidden FAT16 64 Novell Netware af HFS / HFS+ fb VMware VMFS
17 Hidden HPFS/NTF 65 Novell Netware b7 BSDI fs fc VMware VMKCORE
18 AST SmartSleep 70 DiskSecure Mult b8 BSDI swap fd Linux raid auto
1b Hidden W95 FAT3 75 PC/IX bb Boot Wizard hid fe LANstep
1c Hidden W95 FAT3 80 Old Minix be Solaris boot ff BBT
1e Hidden W95 FAT1
Hex code (type L to list codes): 82
Changed system type of partition 6 to 82 (Linux swap / Solaris)

Command (m for help): p

Disk /dev/sdb: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 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: 0x0d716927

Device Boot Start End Blocks Id System
/dev/sdb1 1 132 1060258+ 83 Linux
/dev/sdb2 133 264 1060290 83 Linux
/dev/sdb3 265 522 2072385 5 Extended
/dev/sdb5 265 329 522081 83 Linux
/dev/sdb6 330 522 1550241 82 Linux swap / Solaris

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@yyq ~]# mkswap /dev/sdb6
Setting up swapspace version 1, size = 1550236 KiB
no label, UUID=d82909ca-522b-4557-b89a-c0f6c33ccc3b
[root@yyq ~]# swapon /dev/sdb6
[root@yyq ~]# free
total used free shared buffers cached
Mem: 1030304 144076 886228 304 12704 59856
-/+ buffers/cache: 71516 958788
Swap: 3598232 0 3598232
[root@yyq ~]#

swapoff /dev/sdb6 : 将 swap 分区停止 ：