CN113687843A - Method for automatically recovering firmware of baseboard management controller - Google Patents
Method for automatically recovering firmware of baseboard management controller Download PDFInfo
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- CN113687843A CN113687843A CN202010420594.7A CN202010420594A CN113687843A CN 113687843 A CN113687843 A CN 113687843A CN 202010420594 A CN202010420594 A CN 202010420594A CN 113687843 A CN113687843 A CN 113687843A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000002159 abnormal effect Effects 0.000 claims abstract description 31
- 238000012546 transfer Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 70
- 230000005856 abnormality Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/327—Alarm or error message display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44521—Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading
Abstract
A method for automatically recovering the firmware of a baseboard management controller is suitable for recovering the firmware of the baseboard management controller and implemented by a control unit electrically connected with the baseboard management controller, and comprises: (A) starting timing; (B) determining whether a status message is received from the bmc; (C) when receiving the state message, resetting the timing result and returning to the step (A); (D) when the status message is not received, judging whether the timing result is greater than a preset time interval or not; (E) when the time interval is larger than the preset time interval, updating the starting loading program in the substrate management controller into a target starting loading program, and restarting the substrate management controller; (F) transmitting an abnormal notification to the baseboard management controller to enable the baseboard management controller to update the original firmware to the target firmware.
Description
Technical Field
The present invention relates to a firmware updating method, and more particularly, to a method for automatically recovering a firmware of a baseboard management controller.
Background
A Baseboard Management Controller (BMC) is a controller used to monitor the status of an electronic device (e.g., a server). The baseboard Management controller can provide an Intelligent Platform Management Interface (IPMI) to monitor, control and report the state of the server, and a manager can perform a remote Management function through the IPMI. However, when the bmc is abnormal and cannot be controlled through IPMI, an engineer needs to manually recover the firmware of the bmc, and the conventional firmware recovery method includes the following three ways.
The first method is to operate under the condition that the BIOS of the server can still be normally powered on, and the administrator remotely controls the server to perform the firmware update procedure to recover the firmware of the baseboard management controller. The second way can operate under the condition that the BIOS of the server can not normally boot, the administrator connects a computer to the serial port or the debug interface of the baseboard management controller through the physical circuit, and executes the firmware update program on the computer to recover the baseboard management controller firmware. The third method can also be operated under the condition that the BIOS of the server can not be normally started, the administrator connects a recorder to the memory of the baseboard management controller, which stores the firmware, through the physical circuit, and controls the recorder to update the firmware of the baseboard management controller through a computer.
However, the above firmware recovery method for the bmc needs to be recovered by the administrator, and if the BIOS of the server cannot be normally powered on, the administrator cannot recover the bmc firmware through remote (remote), and must be connected to the bmc in the field to perform the recovery operation, which is inconvenient.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for automatically recovering firmware without manual repair by a manager.
To solve the above technical problem, the method for automatically recovering the firmware of the baseboard management controller of the present invention is suitable for recovering the firmware of a baseboard management controller, and is implemented by a control unit electrically connected to the baseboard management controller, the baseboard management controller is used for periodically transmitting a status message indicating the normal operation of the baseboard management controller to the control unit after loading the operating system of the baseboard management controller, and the method for automatically recovering the firmware of the baseboard management controller comprises a step (a), a step (B), a step (C), a step (D), a step (E), and a step (F).
The step (A) is started to time by the control unit.
And (B) judging whether a status message from the baseboard management controller is received by the control unit.
Step (C) is to reset the timing result of step (A) by the control unit and return to step (A) when the control unit determines that the status message is received.
Step (D) is to judge whether the timing result of step (A) is larger than a preset time period by the control unit when the control unit judges that the status message is not received.
Step (E) is that when the control unit determines that the timing result of step (A) is greater than the preset time period, the control unit updates a starting loading program originally in the baseboard management controller to a target starting loading program and restarts the baseboard management controller.
And (F) transmitting an abnormal notice indicating abnormal operation of the baseboard management controller to the baseboard management controller by the control unit so that the baseboard management controller starts a loading program after executing the updated target, and downloading a target firmware and updating the original firmware into the target firmware after receiving the abnormal notice.
Another technical problem to be solved by the present invention is to provide a method for automatically recovering firmware without manual repair by a manager.
To solve the above-mentioned another technical problem, the method for automatically recovering the firmware of the bmc according to the present invention is implemented by a bmc electrically connected to a control unit, and the method includes a step (a), a step (B), a step (C), and a step (D).
And (A) executing a boot loader by the baseboard management controller.
And (B) judging whether an abnormal notification from the control unit is received by the BMC, wherein the abnormal notification is a notification indicating abnormal operation of the BMC generated by the control unit when the control unit does not receive a status message indicating normal operation of the BMC for a default time period.
Step (C) is that when the baseboard management controller determines that the abnormity notice from the control unit is received, the baseboard management controller downloads a target firmware.
And (D) updating the original firmware to the target firmware by the baseboard management controller.
Compared with the prior art, the control unit calculates the timing result according to whether the state message from the baseboard management controller is received or not, and when the timing result is larger than the preset time period, the control unit updates the original boot loader in the baseboard management controller to the target boot loader, restarts the baseboard management controller and transmits the abnormal notification to the baseboard management controller, so that the baseboard management controller can update the original firmware to the target firmware and return to normal operation without being controlled by a manager.
[ description of the drawings ]
Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a block diagram illustrating a firmware update system that performs one embodiment of the method of the present invention for automatically recovering firmware of a baseboard management controller;
FIG. 2 is a flowchart illustrating a normal operation procedure of an embodiment of the method for automatically recovering the firmware of the baseboard management controller according to the present invention;
FIG. 3 is a flow chart illustrating a monitoring procedure of an embodiment of the method for automatically recovering the firmware of the baseboard management controller according to the present invention; and
FIG. 4 is a flowchart illustrating a determination update procedure of an embodiment of a method for automatically recovering firmware of a baseboard management controller according to the present invention.
[ detailed description ] embodiments
Referring to fig. 1, an embodiment of the method for automatically recovering the firmware of the bmc according to the present invention is implemented by a firmware update system 100, where the firmware update system 100 includes a control unit 1, a bmc 2 electrically connected to the control unit 1, a switch unit 3 electrically connected to the control unit 1 and the bmc 2, and a server 4 connected to the bmc 2 through a communication network 200.
The baseboard management controller 2 includes a baseboard management control unit 21 and a baseboard end memory unit 22. The baseboard management controller 22 stores a firmware executable by the baseboard management controller 21, and the firmware stored in the baseboard management memory unit 22 includes a BootLoader (BootLoader) related to the operating system and the initialization hardware for loading the baseboard management controller 2, an operating system kernel of the baseboard management controller 2, and a file system.
The switch unit 3 is electrically connected to the control unit 1, the board management control unit 21 and the board end memory unit 22, and is controlled by the control unit 1 to conduct the connection between the control unit 1 and the board end memory unit 22, or conduct the connection between the board management control unit 21 and the board end memory unit 22. In the present embodiment, the switch unit 3 performs information transmission with the control unit 1, the board management control unit 21 and the board end memory unit 22 through SPI interfaces (Serial Peripheral Interface).
The server 4 stores a target firmware associated with the bmc 2. In this embodiment, the server 4 can be implemented as a personal computer, a server, or a cloud host, but not limited thereto. In addition, the target firmware also includes the BootLoader (BootLoader) related to the operating system and initialization hardware for loading the baseboard management controller 2, the operating system core of the baseboard management controller 2, the file system, and the like. In other embodiments, the target firmware may also include the os kernel of the bmc 2, the file system, and the like, but not the BootLoader (BootLoader).
The control unit 1 stores a target boot loader, for example, a boot loader (BootLoader) that can be normally executed by the bmc 2 and is related to an operating system and initialization hardware for loading the bmc 2. In addition, the implementation of the control unit 1 is, for example, a Complex Programmable Logic Device (CPLD) 2, but not limited thereto.
Specifically, in the embodiment, the control unit 1 transmits signals through a plurality of General-purpose input/output pins (GPIOs) electrically connected to the bmc 2. Specifically, the control unit 1 transmits a reset signal to the bmc 2 through a first one of the general-purpose i/o pins to reset the bmc 2. In addition, the control unit 1 transmits a notification signal to the bmc 2 through a second general-purpose i/o pin of the general-purpose i/o pins. Wherein the signal value of the notification signal indicates whether the operation of the baseboard management controller 2 is abnormal or not. In addition, the control unit 1 transmits a switching signal to the switch unit 3 through a third general purpose input/output pin electrically connected to the switch unit 3 to switch the conduction mode of the switch unit 3. Wherein the signal value of the switching signal can indicate to conduct the connection between the control unit 1 and the substrate-side memory unit 22, or to conduct the connection between the substrate management control unit 21 and the substrate-side memory unit 22. Furthermore, the control unit 1 also performs information transfer with the bmc 2 through an Inter-Integrated Circuit (I C) interface, for example, the bmc 21 transfers a status message indicating that the bmc 2 normally operates to the control unit 1.
The following describes an embodiment of a method for automatically recovering the firmware of the bmc implemented by the firmware update system 100 with reference to the attached drawings, where the embodiment sequentially includes a normal operation procedure, a monitoring procedure and a determination update procedure.
Referring to fig. 1 and 2, the bmc 2 implements a normal operation procedure of the method for automatically recovering the firmware of the bmc according to the present invention. The normal operation program describes a program performed by the bmc 2 when the operating system of the bmc 2 is loaded and the bmc 2 operates normally, and includes the following steps.
In step 51, the bmc 21 executes an Intelligent Platform Management Interface (IPMI) command to periodically send the status message indicating that the bmc 2 is operating normally to the control unit 1.
Referring to fig. 1 and 3, the firmware update system 100 implements the monitoring procedure of the method for automatically recovering the firmware of the bmc according to the present invention. The monitoring program shows how the control unit 1 monitors whether the operation of the bmc 2 is abnormal, and includes the following steps.
In step 61, the control unit 1 starts timing.
In step 62, the control unit 1 determines whether the status message is received from the bmc 2. When the control unit 1 determines that the status message has been received, it proceeds to step 63; when the control unit 1 determines that the status message has not been received, the flow proceeds to step 64.
In step 63, the control unit 1 resets the timing result, and sets the signal value of the notification signal outputted from the second general-purpose i/o pin to indicate that the bmc 2 is operating normally, and returns to step 61. It should be noted that, in the present embodiment, the control unit 1 indicates that the bmc 2 is operating normally through the signal value of the notification signal output by the second general-purpose i/o pin. However, in other embodiments of the present invention, the control unit 1 may also transmit any notification to the bmc 2 when the bmc 2 is operating normally by transmitting an abnormality notification to the bmc 2 through another transmission interface only when the bmc 2 is operating abnormally.
In step 64, the control unit 1 determines whether the timing result is greater than a preset time period. When the control unit 1 determines that the timing result is not greater than the preset time period, the flow returns to step 62 to continue timing; when the control unit 1 determines that the timing result is greater than the predetermined time period (indicating that the bmc 2 has failed to operate normally), the process proceeds to step 65. It should be noted that the predetermined time period is longer than the time required for downloading and updating the target firmware from the server 4 to the bmc 2, booting and loading the os of the bmc 2 until the IPMI command is executed to initially issue the status message.
In step 65, the control unit 1 sets the signal value of the switching signal outputted from the input/output pin of the third general type to indicate to turn on the connection between the control unit 1 and the substrate-side memory unit 22, so that the switch unit 3 turns on the connection between the control unit 1 and the substrate-side memory unit 22.
In step 66, the control unit 1 updates the boot loader originally stored in the substrate-side memory unit 22 to the target boot loader.
In step 67, the control unit 1 sets the signal value of the switching signal outputted from the third general-purpose input/output pin to indicate to conduct the connection between the board management control unit 21 and the board-side memory unit 22, so that the switch unit 3 conducts the connection between the board management control unit 21 and the board-side memory unit 22.
In step 68, the control unit 1 transmits the restart signal to the bmc 2 through the first general-purpose i/o pin to restart the bmc 2.
In step 69, the control unit 1 sets the signal value of the notification signal outputted from the second general-purpose i/o pin to indicate that the bmc 2 is abnormal, so as to transmit an abnormal notification indicating that the bmc 2 is abnormal to the bmc 2, and returns to step 61. It should be noted that, in the present embodiment, the control unit 1 indicates whether the bmc 2 is abnormal through the signal value of the notification signal output by the second general-purpose i/o pin, however, in other embodiments of the present invention, the control unit 1 may also transmit an abnormal notification indicating that the bmc 2 is abnormal to the bmc 2 through another transmission interface.
Referring to fig. 1 and 4, the firmware update system 100 implements the determination update procedure of the method for automatically recovering the firmware of the bmc according to the present invention. The determination update procedure shows how the bmc 2 determines whether the stored firmware needs to be automatically recovered, and includes the following steps.
In step 71, the bmc 2 restarts after receiving the restart signal from the control unit 1.
In step 72, the bmc 21 executes the boot loader stored in the baseboard management memory unit 22.
In step 73, the board management control unit 21 determines whether or not the abnormality notification is received from the control unit 1. When the bmc 21 determines that the abnormality notification has not been received, it proceeds to step 74; when the bmc control unit 21 determines that the abnormality notification is received (i.e., the control unit 1 does not receive the status message indicating that the bmc 2 normally operates in step 69, the control unit 1 generates a notification indicating that the bmc 2 operates abnormally, see fig. 3), and then proceeds to step 75.
In step 74, after the bmc 21 finishes executing the boot loader to complete the initialization setting, the bmc 21 continues to execute its original firmware to load the os of the bmc 2. It should be noted that, when the bmc 21 successfully loads the os of the bmc 2 and operates normally, the bmc 21 continues the normal operation procedure of the method of automatically recovering the firmware of the bmc according to the present invention.
In step 75, the baseboard management control unit 21 transmits the status message indicating that the baseboard management controller 2 normally operates to the control unit 1 via the I C interface. Therefore, in step 63, after receiving the status message transmitted by the bmc 21 in step 75, the control unit 1 resets the timing result and sets the signal value of the signal transmitted by the second general-purpose i/o pin to indicate that the bmc 2 is operating normally by the control unit 1.
In step 76, the bmc 21 downloads the target firmware from the server 4 via a simple File Transfer Protocol (FTP).
In step 77, the bmc 21 updates the firmware originally stored in the baseboard storage unit 22 to the target firmware.
It should be noted that, the control unit 1 stores the target boot loader, and updates the original boot loader in the bmc 2 to the target boot loader when detecting that the bmc 2 cannot operate normally, so that the bmc 2 can restart smoothly and perform boot loader by using the boot loader with normal function, so that the bmc 2 can download the target firmware from the server 4 through a simple file transfer protocol when receiving the abnormal notification, and thus resume normal operation. Since the control unit 1 only needs to reply the target boot loader and the complete target firmware is downloaded from the server 4 by the baseboard management controller 2, the control unit 1 only needs to store the target boot loader without storing the complete target firmware, thereby saving data storage capacity.
In step 78, the bmc 21 restarts according to the updated target firmware, and returns to step 72.
To sum up, the method for automatically recovering the firmware of the baseboard management controller according to the present invention continuously determines whether the control unit 1 receives the status message related to the baseboard management controller 2 within a predetermined time period, when it is determined that the status message is not received within the predetermined time period, which indicates that the baseboard management controller 2 is unlikely to operate normally, at this time, the control unit 1 first updates the original boot loader in the baseboard management controller 2 to the target boot loader, so as to ensure that the baseboard management controller 2 can be restarted smoothly and perform the boot loader using the boot loader with normal function, and in addition, the control unit 1 transmits the abnormal notification to the baseboard management controller 2, so that the baseboard management controller 2 can download the target firmware from the server 4 and update the target firmware after being restarted, therefore, even if BIOS can not be started normally, if the baseboard management controller 2 is abnormal, the invention can automatically update the firmware of the baseboard management controller 2 by the method for automatically recovering the firmware of the baseboard management controller to recover the function of the baseboard management controller 2, thereby achieving the purpose of the invention.
However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the patent specification should be included in the scope of the present invention.
Claims (10)
1. A method for automatically recovering firmware of a baseboard management controller, which is suitable for recovering the firmware of a baseboard management controller and implemented by a control unit electrically connected to the baseboard management controller, wherein the baseboard management controller is used for periodically transmitting a status message indicating normal operation of the baseboard management controller to the control unit after loading an operating system of the baseboard management controller, and the method comprises the following steps:
(A) the control unit starts timing;
(B) the control unit determines whether a status message is received from the baseboard management controller;
(C) when the control unit determines that the status message is received, the control unit resets the timing result of step (A) and returns to step (A);
(D) when the control unit determines that the status message is not received, the control unit determines whether the timing result of step (a) is greater than a preset time period;
(E) when the control unit determines that the timing result of the step (a) is greater than the preset time period, the control unit updates an original boot loader in the bmc to a target boot loader and restarts the bmc; and
(F) the control unit transmits an abnormal notice indicating the abnormal operation of the baseboard management controller to the baseboard management controller, so that the baseboard management controller starts a loading program after executing the updated target, and downloads a target firmware and updates the original firmware to the target firmware after receiving the abnormal notice.
2. The method of claim 1, further comprising the following steps after the step (D):
(G) when the control unit determines that the timing result of step (A) is not greater than the predetermined period, returning to step (B).
3. The method of claim 1, wherein the bmc comprises a bmc control unit and a bmc memory unit, the bmc control unit is further electrically connected to a switch unit electrically connected to the bmc control unit and the bmc memory unit, wherein step (E) comprises the following sub-steps:
(E-1) when the control unit determines that the timing result of the step (A) is greater than the preset time period, the control unit controls the switch unit to conduct the connection between the control unit and the substrate-side memory unit;
(E-2) the control unit updating the boot loader of the substrate-side memory unit to the target boot loader;
(E-3) the control unit controls the switch unit to conduct the connection between the baseboard management control unit and the baseboard end memory unit; and
(E-4) the control unit restarts the baseboard management controller.
4. The method of claim 1, wherein the method further comprises:
in step (F), the control unit outputs a signal to the BMC via a general-purpose I/O pin, wherein the signal value of the signal indicates that the BMC is abnormal, so as to transmit the abnormal notification to the BMC.
5. The method of claim 4, wherein the method further comprises:
in step (C), when the control unit determines that the status message is received, the control unit further changes the signal value of the signal outputted from the general-purpose I/O pin to indicate that the BMC is operating normally.
6. A method for automatically recovering the firmware of a baseboard management controller is implemented by a baseboard management controller, which is electrically connected with a control unit, and the method comprises the following steps:
(A) the baseboard management controller executes a start loading program;
(B) the baseboard management controller determines whether an abnormal notification from the control unit is received, wherein the abnormal notification is a notification indicating abnormal operation of the baseboard management controller generated by the control unit when the control unit does not receive a status message indicating normal operation of the baseboard management controller over a default time period;
(C) when the baseboard management controller judges that the abnormal notice from the control unit is received, the baseboard management controller downloads a target firmware; and
(D) the baseboard management controller updates the original firmware to the target firmware.
7. The method as claimed in claim 6, wherein the bmc is further connected to a server via a communication network, and in step (C), the bmc downloads the target firmware from the server via simple file transfer protocol.
8. The method of claim 6, further comprising the following steps after the step (D):
(E) the baseboard management controller restarts.
9. The method of claim 6, further comprising the following steps after the step (B):
(F) when the baseboard management controller judges that the abnormal notice from the control unit is not received and executes the startup loading program to finish the initialization setting, the baseboard management controller continues to execute the original firmware to load the operating system of the baseboard management controller.
10. The method of claim 9, further comprising the following steps after the step (F):
(G) after the baseboard management controller loads the operating system of the baseboard management controller, when the baseboard management controller normally operates, the baseboard management controller periodically transmits the status message indicating the normal operation of the baseboard management controller to the control unit, so that the control unit judges whether to update the original boot loader in the baseboard management controller to a target boot loader according to the status message, and whether to transmit the abnormal notification to the baseboard management controller.
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