mkfs命令格式化分區報錯及解決方法

1、mkfs命令格式化分區報錯信息：

[root@localhost?~]#?mkfs?-t?ext4?/dev/sdb7
mke2fs?1.42.9?(28-Dec-2013)
Could?not?stat?/dev/sdb7?---?No?such?file?or?directory

The?device?apparently?does?not?exist;?did?you?specify?it?correctly?

2、解決方法：

????????第一步：安裝parted包

????????????先檢查系統中是否安裝parted包

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

????????????安裝parted包命令

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

????????第二步：執行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：重新格式化分區

[root@localhost?~]#?mkfs?-t?ext4?/dev/sdb7
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
131072?inodes,?524288?blocks
26214?blocks?(5.00%)?reserved?for?the?super?user
First?data?block=0
Maximum?filesystem?blocks=536870912
16?block?groups
32768?blocks?per?group,?32768?fragments?per?group
8192?inodes?per?group
Superblock?backups?stored?on?blocks:?
	32768,?98304,?163840,?229376,?294912

Allocating?group?tables:?done????????????????????????????
Writing?inode?tables:?done????????????????????????????
Creating?journal?(16384?blocks):?done
Writing?superblocks?and?filesystem?accounting?information:?done

????????第四步：用blkid命令查看分區是否格式化成功

[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"?????????????????#顯示/dev/sdb7分區格式化成功