Shulou(Shulou.com)06/03 Report--

1. Mkfs command formats partition error message:

[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. Solution:

Step 1: install the parded package

First check whether the parded package is installed in the system

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

Install parted package command

Yum-y install parted or rpm-ivh parted-3.1-29.el7.x86_64.rpm

Step 2: execute the partprobe command

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

Step 3: reformat the partition

[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: doneWriting inode tables: done Creating journal (16384 blocks): doneWriting superblocks and filesystem accounting information: done

Step 4: use the blkid command to see if the partition is formatted successfully

[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" # shows / dev/sdb7 partition formatted successfully

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