Shulou(Shulou.com)06/02 Report--

Take Seagate operating system SeaOS as an example:

When we take apart the circuit board of the hard drive, we can see CPU, Flash ROM and RAM, which are similar to computers and mobile phones.

Flash ROM and firmware area (firmware usage area on hard disk)

Both the Flash ROM and the fastener area are the storage space for the SeaOS system, just like the C disk of our computer and the system area of the iPhone. The old single-chip microcomputer is designed by ROM to complete the storage of the whole SeaOS, but because the price of Flash ROM is expensive, and the hard disk itself is a lot of storage space, so the new SeaOS is designed to classify and store system programs in different storage areas.

Flash ROM is equipped with a magnetic head positioning module and a module (program) pointing to the offset of the dynamic fastener area.

The fastener area on the disc of the hard disk stores information related to the location of the user area, NCR, SMART, functional modules of the CERT detection program, bad track records and various program logs, and will separate the information of the Flash ROM template.

SeaOS common system boot mode (the order in which memory is loaded)

Mode one

Mode two

Hard disk CPU basic program

Hard disk CPU basic program

Head read and write control module

Head read and write control module

Location of disc fastener area

Location of disc fastener area

Model and capacity information

Model and capacity information

List of modules in fastener area

List of modules in fastener area

Hard disk system program

Hard disk maintenance program

Bad compiler

S.M.A.R.T

Flashrom disc fastener area

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.