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CentOS7 挂载磁盘出错mount: /dev/sdb is write-protected, mounting

news 2025/8/14 4:58:15

在这里插入图片描述

问题描述：报错信息如下：

[root@localhost ~]# mount /dev/sdb /image
mount: /dev/sdb is write-protected, mounting read-only
mount: unknown filesystem type '(null)'

解决方案：

查看磁盘：
[root@localhost ~]# fdisk -l格式化磁盘(如何挂载的磁盘里有安装的应用程序会被一起格式掉):
[root@localhost ~]# mkfs.ext4 /dev/sdbProceed anyway? (y,n) ymke2fs 1.42.9 (28-Dec-2013)
/dev/sdb is entire device, not just one partition!
Proceed anyway? (y,n) y
Discarding device blocks: done                            
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
32768000 inodes, 131072000 blocks
6553600 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2279604224
4000 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, 71663616, 78675968, 102400000Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done   ###挂载磁盘目录
[root@localhost ~]# mount /dev/sdb /image

查看效果

[root@localhost ~]# df -lh
Filesystem      Size  Used Avail Use% Mounted on
略
/dev/sdb        493G   73M  467G   1% /image

设置开机默认挂载

[root@localhost ~]# blkid /dev/sdb
/dev/sdb: UUID="b8c4a45f-ed74-3089-fcdb-0273de904d6d" TYPE="ext4" [root@localhost ~]# vim /etc/fstab在最后一行增加如下信息UUID=b8c4a45f-ed74-3089-fcdb-0273de904d6d      /image    ext4    defaults    1 2