mkfs命令格式化分区报错及解决方法

1、mkfs命令格式化分区报错信息：

[root@localhost ~]# mkfs -t ext4 /dev/sdb7mke2fs 1.42.9 (28-Dec-2013)Could not stat /dev/sdb7 --- No such file or directoryThe device apparently does not exist; did you specify it correctly?

2、解决方法：

第一步：安装parted包

先检查系统中是否安装parted包

[root@localhost ~]# rpm -q parted      parted-3.1-29.el7.x86_64

安装parted包命令

yum -y install parted或rpm -ivh parted-3.1-29.el7.x86_64.rpm

第二步：执行partprobe命令

[root@localhost ~]# partprobe Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only.

第三步：重新格式化分区

[root@localhost ~]# mkfs -t ext4 /dev/sdb7mke2fs 1.42.9 (28-Dec-2013)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks131072 inodes, 524288 blocks26214 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=53687091216 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks:         32768, 98304, 163840, 229376, 294912Allocating group tables: done                            Writing inode tables: done                            Creating journal (16384 blocks): doneWriting superblocks and filesystem accounting information: done

第四步：用blkid命令查看分区是否格式化成功

[root@localhost ~]# blkid -s TYPE/dev/sda1: TYPE="xfs" /dev/sda2: TYPE="LVM2_member" /dev/sdb5: TYPE="xfs" /dev/sr0: TYPE="iso9660" /dev/mapper/rhel-root: TYPE="xfs" /dev/mapper/rhel-swap: TYPE="swap" /dev/sdb7: TYPE="ext4"                 #显示/dev/sdb7分区格式化成功