linux wipe命令,如何使用wipefs命令擦除磁盘上的签名

每个磁盘和分区上都有某种签名和元数据/魔术字符串。你可以使用wipefs命令查看分区表签名/元数据/魔术字符串。wipefs命令可以擦除文件系统，RAID或分区表签名/元数据。

显示磁盘当前签名

[root@localhost ~]# wipefs /dev/sda DEVICE OFFSET TYPE UUID LABEL sda 0x1fe dos [root@localhost ~]# wipefs /dev/sda1 DEVICE OFFSET TYPE UUID LABEL sda1 0x0 xfs f15a938f-f96d-4b56-8259-76f31c209694

如何使用wipefs删除磁盘的签名

[root@localhost ~]# wipefs -a -f /dev/sda /dev/sda: 2 bytes were erased at offset 0x000001fe (dos): 55 aa

也可以备份一个签名到$HOME目录下，并清空磁盘的签名：

[root@localhost ~]# wipefs -a -f -b /dev/sda /dev/sda: 2 bytes were erased at offset 0x000001fe (dos): 55 aa