华为云磁盘挂载与分区扩容
华为云磁盘挂载
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- 华为云磁盘挂载
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- 创建分区过程
- 华为云分区扩容
华为云磁盘挂载
华为云磁盘满了怎么挂载新增磁盘
查看磁盘使用情况
df -hl
查看购买磁盘
fdisk -l
创建挂载目录:
mkdir /data
这里我的挂载点是/root因为我平时将我的一些文件存储到这个位置
挂载 ：
mount /dev/vdb /root
发现报错：
mount: /dev/vdb is write-protected, mounting read-only
mount: unknown filesystem type '(null)'
解决办法：
创建ext4文件系统
mkfs.ext4 /dev/vdb
重新挂载：
mount /dev/vdb /root
查看磁盘使用情况：
df -hT
退出挂载
umount /root
取消挂载之后，挂载之前的文件会恢复
当出现如下错误的时候
[root@hdp01 centos7]#umount /root
umount: /root: target is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
- 查看占用线程
[root@hdp01 centos7]# fuser -m /root
/root: 21746c
- 关闭占用线程
kill -9 21746
- 再次取消挂载
umount /root
创建分区过程
# 查看分区
[root@ecs-3b04-0004 /]# fdisk -l
Disk /dev/vda: 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: 0x000a6f64
Device Boot Start End Blocks Id System
/dev/vda1 2048 8001535 3999744 82 Linux swap / Solaris
/dev/vda2 * 8001536 83886079 37942272 83 Linux
Disk /dev/vdb: 536.9 GB, 536870912000 bytes, 1048576000 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
#进入分区
[root@ecs-3b04-0004 /]# fdisk /dev/vdb
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.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xeda9ebfd.
#m指的是查看分区命令
Command (m for help): m
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)
#n表示建立分区
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
#默认分区
Select (default p): p
#建立分区1
Partition number (1-4, default 1): 1
#enter默认初始分区2048
First sector (2048-1048575999, default 2048):
Using default value 2048
#构建分区大小为100G
Last sector, +sectors or +size{K,M,G} (2048-1048575999, default 1048575999): +100G
Partition 1 of type Linux and of size 100 GiB is set
#w保存
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
#将分区同步
[root@ecs-3b04-0004 /]# partprobe
#格式化分区
[root@ecs-3b04-0004 /]# mkfs -t ext4 /dev/vdb1
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
6553600 inodes, 26214400 blocks
1310720 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2174746624
800 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, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
#查看分区
[root@ecs-3b04-0004 /]# lsblk -l
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 253:0 0 40G 0 disk
vda1 253:1 0 3.8G 0 part [SWAP]
vda2 253:2 0 36.2G 0 part /
vdb 253:16 0 500G 0 disk
vdb1 253:17 0 100G 0 part
查看分区树结构
[root@ecs-3b04-0004 /]# lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
vda
├─vda1 swap swap 5bf05464-a61a-4962-a70a-e73f39b1141a [SWAP]
└─vda2 xfs acc22fb1-001c-4909-9f35-4dba7c654405 /
vdb ext4 ce617cc3-f0f6-41b4-a4ee-26c539b47346
└─vdb1 ext4 dd9c2b78-af9d-4dac-be38-bddd31780e9f
挂载、分区参考文档：https://support.huaweicloud.com/qs-evs/evs_01_0033.html
参考文档：https://blog.csdn.net/qq_32901251/article/details/113246916
华为云分区扩容
在购买的华为云服务器上进行扩容
扩容之后
扩容成功之后需要将扩容的磁盘放入分区（见参考文档）这里注意ubuntu安装软包是用的这个命令apt-get
参考文档：https://support.huaweicloud.com/usermanual-evs/evs_01_0072.html