管理磁盘

最新推荐文章于 2021-10-06 13:25:52 发布

原创最新推荐文章于 2021-10-06 13:25:52 发布 · 2k 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#linux

linux 专栏收录该内容

1 篇文章

订阅专栏

[root@oratest ~]# fdisk -l

查看分区表

Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x0448641b

fdisk磁盘分区
- -b 指定分区大小
- -l 列出指定的外围设备的分区表状况
- -s <分区编号>
- 1-4 扩展分区
- 5- 逻辑分区

Sda 第一块

Sdb 第二块

添加硬盘
- 磁盘类型ISCSI需要重启(reboot)
- SATA不需要重启
- Linux的设备通过文件管理

IDE设备	/dev/hd[a-d]
Scsi/SATA/U盘	/dev/sd[a-p]
软驱	/dev/fd[0-1]
打印机	/dev/lp[0-15]
光驱	/dev/cdrom
鼠标	/dev/house
磁带机	/dev/st0或/ht0

Device Boot Start End Blocks Id System

/dev/sdb1 2048 1640447 819200 83 Linux

Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x000622c6

Device Boot Start End Blocks Id System

/dev/sda1 * 2048 1026047 512000 83 Linux

/dev/sda2 1026048 83886079 41430016 8e Linux LVM

Disk /dev/mapper/rhel-root: 40.2 GB, 40227569664 bytes, 78569472 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/rhel-swap: 2147 MB, 2147483648 bytes, 4194304 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

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

分区

Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.

Be careful before using the write command.

Command(m for help): m ---输出帮助信息

Commandaction

a toggle a bootable flag ---设置启动分区

b edit bsd disklabel ---编辑分区标签

c toggle the dos compatibility flag

d delete a partition --删除一个分区

l list known partition types --列出分区类型

m print this menu --显示命令行

n add a new partition --建立一个新的分区

o create a new empty DOS partition table --创建一个新的空白DOS分区表

p print the partition table ---打印分区表

q quit without saving changes ---退出不保存

s createa new empty Sun disklabel ---创建一个有新标签的磁盘

t changea partition's system id ---改变分区的ID

u changedisplay/entry units ---改变显示的单位

v verifythe partition table ---检查验证分区表

w write table to disk and exit ---保存分区表

x extra functionality (experts only)

Command (m for help): m

显示命令行

Command action

a toggle a bootable flag

b edit bsd disklabel

c toggle the dos compatibility flag

d delete a partition

删除硬盘分割情形

g create a new empty GPT partition table

G create an IRIX (SGI) partition table

l list known partition types

m print this menu	显示命令列式
n add a new partition	设定新硬盘分割区
	E 延伸分割区
	P 主要分割区

o create a new empty DOS partition table

p print the partition table

q quit without saving changes

不存盘退出

s create a new empty Sun disklabel

t change a partition's system id	改变硬盘分割区属性

u change display/entry units

v verify the partition table

w write table to disk and exit

存盘退出

x extra functionality (experts only)

Command (m for help): l

查看分区类型（t改变）

0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris

1 FAT12 27 Hidden NTFS Win 82 Linux swap / So c1 DRDOS/sec (FAT-

2 XENIX root 39 Plan 9 83 Linux c4 DRDOS/sec (FAT-

3 XENIX usr 3c PartitionMagic 84 OS/2 hidden C: c6 DRDOS/sec (FAT-

4 FAT16 <32M 40 Venix 80286 85 Linux extended c7 Syrinx

5 Extended 41 PPC PReP Boot 86 NTFS volume set da Non-FS data

6 FAT16 42 SFS 87 NTFS volume set db CP/M / CTOS / .

7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux plaintext de Dell Utility

8 AIX 4e QNX4.x 2nd part 8e Linux LVM df BootIt

9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e1 DOS access

a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O

b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor

c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi eb BeOS fs

e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ee GPT

f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD ef EFI (FAT-12/16/

10 OPUS 55 EZ-Drive a7 NeXTSTEP f0 Linux/PA-RISC b

11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f1 SpeedStor

12 Compaq diagnost 5c Priam Edisk a9 NetBSD f4 SpeedStor

14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot f2 DOS secondary

16 Hidden FAT16 63 GNU HURD or Sys af HFS / HFS+ fb VMware VMFS

17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs fc VMware VMKCORE

18 AST SmartSleep 65 Novell Netware b8 BSDI swap fd Linux raid auto

1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid fe LANstep

1c Hidden W95 FAT3 75 PC/IX be Solaris boot ff BBT

1e Hidden W95 FAT1 80 Old Minix

Command (m for help): n

新建分区

Partition type:

p primary (1 primary, 0 extended, 3 free)

e extended

Select (default p):

Using default response p

Partition number (2-4, default 2):

First sector (1640448-41943039, default 1640448):

Using default value 1640448

Last sector, +sectors or +size{K,M,G} (1640448-41943039, default 41943039):

Using default value 41943039

Partition 2 of type Linux and of size 19.2 GiB is set

Command (m for help): p

输出分区表

Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x0448641b

Device Boot Start End Blocks Id System

/dev/sdb1 2048 1640447 819200 83 Linux

/dev/sdb2 1640448 41943039 20151296 83 Linux

Command (m for help): w

保存退出

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@oratest ~]# fdisk -l

查看分区表

Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x0448641b

Device Boot Start End Blocks Id System

/dev/sdb1 2048 1640447 819200 83 Linux

/dev/sdb2 1640448 41943039 20151296 83 Linux

Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x000622c6

Device Boot Start End Blocks Id System

/dev/sda1 * 2048 1026047 512000 83 Linux

/dev/sda2 1026048 83886079 41430016 8e Linux LVM

Disk /dev/mapper/rhel-root: 40.2 GB, 40227569664 bytes, 78569472 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/rhel-swap: 2147 MB, 2147483648 bytes, 4194304 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

root@oratest ~]# mkfs -t ext4 /dev/sdb1

建立ext4的文件系统

mke2fs 1.42.9 (28-Dec-2013)

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

Stride=0 blocks, Stripe width=0 blocks

51296 inodes, 204800 blocks

10240 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=209715200

7 block groups

32768 blocks per group, 32768 fragments per group

7328 inodes per group

Superblock backups stored on blocks:

32768, 98304, 163840

Allocating group tables: done

Writing inode tables: done

Creating journal (4096 blocks): done

Writing superblocks and filesystem accounting information: done

mkfs 建立文件系统
- -t 文件系统类型
  - Mkfs
  - Mkfs.xfs

# m for help
- D delete 删除硬盘分区
- M 显示所有命令行
- P 显示硬盘分割情形
- N 设定新的硬盘属性
  - E 延伸分割区
  - P 主要分区
- Q 结束不保存
- W 结束保存

[root@oratest ~]# mkfs.xfs /dev/sdb2

建立xfs的文件系统

meta-data=/dev/sdb2 isize=256 agcount=4, agsize=1259456 blks

= sectsz=512 attr=2, projid32bit=1

= crc=0 finobt=0

data = bsize=4096 blocks=5037824, imaxpct=25

= sunit=0 swidth=0 blks

naming =version 2 bsize=4096 ascii-ci=0 ftype=0

log =internal log bsize=4096 blocks=2560, version=2

= sectsz=512 sunit=0 blks, lazy-count=1

realtime =none extsz=4096 blocks=0, rtextents=0

[root@oratest ~]# mount /dev/sdb1 /mnt/disk1
[root@oratest ~]# mount -o ro /dev/sdb1 /mnt/disk2	用只读模式

mount: /dev/sdb1 is already mounted or /mnt/disk2 busy

/dev/sdb1 is already mounted on /mnt/disk1

[root@oratest ~]# umount /dev/cdrom

卸载文件系统

Umount 卸载文件系统

[root@oratest ~]# mount

查看系统当前的挂载信息

sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)

proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)

devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=918808k,nr_inodes=229702,mode=755)

securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)

tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel)

devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)

tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,mode=755)

tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,seclabel,mode=755)

cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)

pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)

cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)

cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)

cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)

cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)

cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)

cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)

cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)

cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)

cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)

configfs on /sys/kernel/config type configfs (rw,relatime)

/dev/mapper/rhel-root on / type xfs (rw,relatime,seclabel,attr2,inode64,noquota)

selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)

systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=28,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)

mqueue on /dev/mqueue type mqueue (rw,relatime,seclabel)

debugfs on /sys/kernel/debug type debugfs (rw,relatime)

hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,seclabel)

sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)

nfsd on /proc/fs/nfsd type nfsd (rw,relatime)

/dev/sda1 on /boot type xfs (rw,relatime,seclabel,attr2,inode64,noquota)

tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,seclabel,size=186872k,mode=700,uid=1000,gid=1000)

fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)

gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)

/dev/sdb1 on /mnt/disk1 type ext4 (rw,relatime,seclabel,data=ordered)

/dev/sr0 on /run/media/stu06/RHEL-7.2 Server.x86_64 type iso9660 (ro,nosuid,nodev,relatime,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500,uhelper=udisks2)

[root@oratest ~]# du -h

4.0K ./.cache/dconf

4.0K ./.cache/abrt

8.0K ./.cache

4.0K ./.dbus/session-bus

4.0K ./.dbus

0 ./.config/ibus/bus

0 ./.config/ibus

0 ./.config/abrt

0 ./.config

0 ./iso

88K .

[root@oratest ~]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/rhel-root 38G 4.2G 34G 11% /

devtmpfs 898M 0 898M 0% /dev

tmpfs 913M 192K 913M 1% /dev/shm

tmpfs 913M 21M 893M 3% /run

tmpfs 913M 0 913M 0% /sys/fs/cgroup

/dev/sda1 497M 158M 340M 32% /boot

tmpfs 183M 12K 183M 1% /run/user/1000

/dev/sdb1 772M 1.6M 714M 1% /mnt/disk1

/dev/sr0 3.8G 3.8G 0 100% /run/media/stu06/RHEL-7.2 Server.x86_64

df显示磁盘分区上可使用的磁盘空间

-a 全部

[root@oratest ~]# fdisk -l

查看磁盘空间使用情况

Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x0448641b

Device Boot Start End Blocks Id System

/dev/sdb1 2048 1640447 819200 83 Linux

/dev/sdb2 1640448 41943039 20151296 83 Linux

Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x000622c6

Device Boot Start End Blocks Id System

/dev/sda1 * 2048 1026047 512000 83 Linux

/dev/sda2 1026048 83886079 41430016 8e Linux LVM

sda2采用LVM 管理

Disk /dev/mapper/rhel-root: 40.2 GB, 40227569664 bytes, 78569472 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/rhel-swap: 2147 MB, 2147483648 bytes, 4194304 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

建立一个800M的逻辑分区

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

Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.

Be careful before using the write command.

Command (m for help): n

Partition type:

p primary (2 primary, 0 extended, 2 free)

e extended

Select (default p): e

Partition number (3,4, default 3):

No free sectors available

Command (m for help):

Command (m for help): e

e: unknown command

Command action

a toggle a bootable flag

b edit bsd disklabel

c toggle the dos compatibility flag

d delete a partition

g create a new empty GPT partition table

G create an IRIX (SGI) partition table

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

Partition type:

p primary (2 primary, 0 extended, 2 free)

e extended

Select (default p): e

Partition number (3,4, default 3): 3

No free sectors available

Command (m for help): 3

3: unknown command

Command action

a toggle a bootable flag

b edit bsd disklabel

c toggle the dos compatibility flag

d delete a partition

g create a new empty GPT partition table

G create an IRIX (SGI) partition table

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): e

e: unknown command

Command action

a toggle a bootable flag

b edit bsd disklabel

c toggle the dos compatibility flag

d delete a partition

g create a new empty GPT partition table

G create an IRIX (SGI) partition table

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): nn

Partition type:

p primary (2 primary, 0 extended, 2 free)

e extended

Select (default p): e

Partition number (3,4, default 3):

No free sectors available

Command (m for help): q

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

Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.

Be careful before using the write command.

Command (m for help): n

Partition type:

p primary (2 primary, 0 extended, 2 free)

e extended

Select (default p): e

Partition number (3,4, default 3):

No free sectors available

Command (m for help): d

Partition number (1,2, default 2): 1

Partition 1 is deleted

Command (m for help): d

Selected partition 2

Partition 2 is deleted

Command (m for help): n

Partition type:

p primary (0 primary, 0 extended, 4 free)

e extended

Select (default p): e

Partition number (1-4, default 1):

First sector (2048-41943039, default 2048):

Using default value 2048

Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039):

Using default value 41943039

Partition 1 of type Extended and of size 20 GiB is set

Command (m for help): p

Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x0448641b

Device Boot Start End Blocks Id System

/dev/sdb1 2048 41943039 20970496 5 Extended

使用扩展分区就要建立逻辑分区

Command (m for help): n

Partition type:

p primary (0 primary, 1 extended, 3 free)

l logical (numbered from 5)

Select (default p): l

Adding logical partition 5

First sector (4096-41943039, default 4096):

Using default value 4096

Last sector, +sectors or +size{K,M,G} (4096-41943039, default 41943039): +800M

Partition 5 of type Linux and of size 800 MiB is set

Command (m for help): p

Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x0448641b

Device Boot Start End Blocks Id System

/dev/sdb1 2048 41943039 20970496 5 Extended

/dev/sdb5 4096 1642495 819200 83 Linux

Command (m for help): w

存盘退出

The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.

The kernel still uses the old table. The new table will be used at

the next reboot or after you run partprobe(8) or kpartx(8)

Syncing disks.

建立文件系统

[root@oratest ~]# mkfs.xfs /dev/sdb5
/dev/sdb5: No such file or directory	系统未找到，需重启

Usage: mkfs.xfs

/* blocksize */ [-b log=n|size=num]

/* metadata */ [-m crc=0|1,finobt=0|1]

/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,

(sunit=value,swidth=value|su=num,sw=num|noalign),

sectlog=n|sectsize=num

/* force overwrite */ [-f]

/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,

projid32bit=0|1]

/* no discard */ [-K]

/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n

sunit=value|su=num,sectlog=n|sectsize=num,

lazy-count=0|1]

/* label */ [-L label (maximum 12 characters)]

/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]

/* no-op info only */ [-N]

/* prototype file */ [-p fname]

/* quiet */ [-q]

/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]

/* sectorsize */ [-s log=n|size=num]

/* version */ [-V]

devicename

<devicename> is required unless -d name=xxx is given.

<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),

xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).

<value> is xxx (512 byte blocks).

root@oratest ~]# reboot

重启

进入字符界面，输入账号密码，init 5 回到图形界面

[root@localhost ~]# mkfs.xfs /dev/sdb5

meta-data=/dev/sdb5 isize=256 agcount=4, agsize=51200 blks

= sectsz=512 attr=2, projid32bit=1

= crc=0 finobt=0

data = bsize=4096 blocks=204800, imaxpct=25

= sunit=0 swidth=0 blks

naming =version 2 bsize=4096 ascii-ci=0 ftype=0

log =internal log bsize=4096 blocks=853, version=2

= sectsz=512 sunit=0 blks, lazy-count=1

realtime =none extsz=4096 blocks=0, rtextents=0

[root@localhost ~]# mkdir /newdate	建立目录
[root@localhost ~]# mount /dev/sdb5 /newdate/	挂载分区
[root@localhost ~]# mount