The process of reading MBR information from Linux system

MBR is the boot information of the system. The MBR information in the Linux system is mainly divided into three steps. The following describes the process of reading the MBR information from the Linux system. Let's take a look at it.

Linux system reads the MBR information

[root @ rhel64 tmp] # dd if = /dev /sda of = mbr.hex bs = 512 count = 1

[root @ rhel64 tmp] # hexdump -C mbr.hex

1be initially four partitions final 55aa disk information valid flag

83 corresponding to the third column 8e is a partition type

these are the Linux system reads the information of MBR process, and these processes can generally be done automatically, so Linux users need only make a simple understanding of it.