[Linux] mkfs.ext4 命令：对磁盘设备进行Ext4格式化

mkfs.ext4命令来自于英文词组“make filesystem Ext4”的缩写，其功能是用于对磁盘设备进行Ext4格式化的操作。

语法格式：mkfs.ext4 [参数] 设备

常用参数：

实例参考

检查指定的磁盘设备并进行格式化操作：

[root@liuzhongwei ~]# mkfs.ext4 -c /dev/sdbmke2fs 1.44.3 (10-July-)Creating filesystem with 5242880 4k blocks and 1310720 inodesFilesystem UUID: 2468ba17-0d37-4900-b67e-5f3a24084fc5Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000Checking for bad blocks (read-only test): 0.00% done, 0:00 elapsed. (0/0/0 errdone Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: done

对指定的磁盘设备直接进行格式化操作：

[root@liuzhongwei ~]# mkfs.ext4 /dev/sdbmke2fs 1.44.3 (10-July-)Creating filesystem with 5242880 4k blocks and 1310720 inodesFilesystem UUID: 62ccf385-efef-41ab-8938-bfd65bac7066Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: done

对指定的磁盘设备进行格式化操作，添加卷标识，并修改块大小：

[root@liuzhongwei ~]# mkfs.ext4 -L liuzhongwei -b 2048 /dev/sdbmke2fs 1.44.3 (10-July-)Creating filesystem with 10485760 2k blocks and 1310720 inodesFilesystem UUID: 73ad248c-2a01-49dd-aa46-8770ecbc56fdSuperblock backups stored on blocks: 16384, 49152, 81920, 114688, 147456, 409600, 442368, 802816, 1327104, 2048000, 3981312, 5619712, 10240000Allocating group tables: done Writing inode tables: done Creating journal (65536 blocks): doneWriting superblocks and filesystem accounting information: done