linux 8t硬盘分区,linux 磁盘分区

川长思鸟来 2023-01-21 09:28 46阅读 0赞

创建一个扩展分区：

\[root@qing init.d\]\# 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):

Command (m for help): p

Disk /dev/sdb: 5368 MB, 5368709120 bytes

255 heads, 63 sectors/track, 652 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: 0x3c8b5df6

Device

Boot     Start        End     Blocks  Id System

Command (m for help): n

Command action

e  extended

p  primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-652, default 1):

Using default value 1

Last cylinder, +cylinders or +size\{K,M,G\} (1-652, default

652):

Using default value 652

Command (m for help): p

Disk /dev/sdb: 5368 MB, 5368709120 bytes

255 heads, 63 sectors/track, 652 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: 0x3c8b5df6

Device

Boot     Start        End     Blocks  Id System

/dev/sdb1              1        652    5237158+  5 Extended

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

\[root@qing init.d\]\#

格式化：

问题，扩展分区不能格式化，需要创建逻辑分区后格式化

\[root@qing init.d\]\# mkfs -t ext3 /dev/sdb1

mke2fs 1.41.12 (17-May-2010)

mkfs.ext3: inode\_size (128) \* inodes\_count (0) too big for a

filesystem with 0 blocks, specify higher inode\_ratio (-i)

or lower inode count (-N).

\[root@qing init.d\]\#

创建逻辑分区：

1、查看分区信息

\[root@qing init.d\]\# fdisk -l

Disk /dev/sda: 26.8 GB, 26843545600 bytes

255 heads, 63 sectors/track, 3263 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: 0x00062b86

Device

Boot     Start        End     Blocks  Id System

/dev/sda1  \*          1         64     512000  83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2             64       3264   25701376  8e Linux LVM

Disk /dev/sdb: 5368 MB,

5368709120 bytes

255 heads, 63 sectors/track, 652 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: 0x3c8b5df6

Device

Boot     Start        End     Blocks  Id System

/dev/sdb1            1        652    5237158+  5 Extended

Disk /dev/mapper/vg\_qing-lv\_root: 24.2 GB, 24234688512 bytes

255 heads, 63 sectors/track, 2946 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: 0x00000000

Disk /dev/mapper/vg\_qing-lv\_root doesn't contain a valid partition

table

Disk /dev/mapper/vg\_qing-lv\_swap: 2080 MB, 2080374784 bytes

255 heads, 63 sectors/track, 252 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: 0x00000000

Disk /dev/mapper/vg\_qing-lv\_swap doesn't contain a valid partition

table

2、开始创建逻辑分区

\[root@qing init.d\]\# 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):

Command (m for help): n

Command action

l  logical (5 or over)

p  primary partition (1-4)

First cylinder (1-652, default 1):

Using default value 1

Last cylinder, +cylinders or +size\{K,M,G\} (1-652, default

652):

Using default value 652

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

\[root@qing init.d\]\#

3、查看创建的逻辑分区

\[root@qing init.d\]\# fdisk

\-l

Disk /dev/sda: 26.8 GB, 26843545600 bytes

255 heads, 63 sectors/track, 3263 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: 0x00062b86

Device

Boot     Start        End     Blocks  Id System

/dev/sda1  \*          1         64     512000  83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2             64       3264   25701376  8e Linux LVM

Disk /dev/sdb: 5368 MB, 5368709120 bytes

255 heads, 63 sectors/track, 652 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: 0x3c8b5df6

Device

Boot     Start        End     Blocks  Id System

/dev/sdb1              1        652    5237158+  5 Extended

/dev/sdb5           1        652    5237127  83 Linux

Disk /dev/mapper/vg\_qing-lv\_root: 24.2 GB, 24234688512 bytes

255 heads, 63 sectors/track, 2946 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: 0x00000000

Disk /dev/mapper/vg\_qing-lv\_root doesn't contain a valid partition

table

Disk /dev/mapper/vg\_qing-lv\_swap: 2080 MB, 2080374784 bytes

255 heads, 63 sectors/track, 252 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: 0x00000000

Disk /dev/mapper/vg\_qing-lv\_swap doesn't contain a valid partition

table

4、格式化分区

\[root@qing init.d\]\# mkfs -t ext3 /dev/sdb5

mke2fs 1.41.12 (17-May-2010)

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

Stride=0 blocks, Stripe width=0 blocks

327680 inodes, 1309281 blocks

65464 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=1342177280

40 block groups

32768 blocks per group, 32768 fragments per group

8192 inodes per group

Superblock backups stored on blocks:

32768, 98304, 163840, 229376, 294912, 819200, 884736

Writing inode tables:

done

Creati

linux 8t硬盘分区,linux 磁盘分区

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