CN101364193A - BIOS automatic recovery method and computer and system using the method - Google Patents
BIOS automatic recovery method and computer and system using the method Download PDFInfo
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- CN101364193A CN101364193A CNA2007101412916A CN200710141291A CN101364193A CN 101364193 A CN101364193 A CN 101364193A CN A2007101412916 A CNA2007101412916 A CN A2007101412916A CN 200710141291 A CN200710141291 A CN 200710141291A CN 101364193 A CN101364193 A CN 101364193A
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Abstract
The invention discloses a method for automatically recovering the BIOS, as well as a computer and a system employing the method. On a local end computer, a base plate management controller detects whether the BIOS is normal, and acquires the detecting results. According to the detecting results, the base plate management controller sends a BIOS recovering notice to a remote device, According to the BIOS recovering notice, the remote terminal device further provides a BIOS file to the base plate management controller. On the local end computer, the base plate management controller writes the BIOS file in a BIOS storage device, so as to recovery the BIOS.
Description
Technical field
The invention relates to a kind of computer, and particularly relevant for a kind of automatic recovery Basic Input or Output System (BIOS) (Basic Input/Output System, method BIOS) and the computer and the system that use this method.
Background technology
Basic Input or Output System (BIOS) (Basic Input/Output System is to call BIOS in the following text) is to be stored in the flash memory (Flash Memory).In the use of reality, damaged BIOS because of carelessness.For example, in the process of upgrading BIOS,, will cause whole BIOS content to be damaged, and whole computer system can't be started shooting smoothly in case the accident of sudden outage takes place.Whole computer system must be sent back to the maintenance of former manufacturer, so that recover BIOS.
Though quite a lot of relevant for the technology of protection BIOS on the market at present, for example, under the system of single BIOS, arrange to have a hardware mechanisms to remove the start block (boot block) of protecting BIOS interior, in order to avoid said circumstances causes damaging this start block.But this kind method has its defective, is exactly that it can't do renewal to the start block in the BIOS; But be based on some reason, we often need do renewal work to the start block in the BIOS; For example the initialization program code of storer its be stored in start block in the BIOS, even if computer system shipment, but must revise the initialization program code of storer because of the consistency problem of storer the time, just must upgrade the start block in the BIOS; So planting not is to be method.
The another one example then is to use two BIOS (dual BIOS).When one of them BIOS damaged, computer can switch to another BIOS with smooth start.Because computer has possessed two cover BIOS, therefore need not provide hardware protection to the start block of BIOS.Because even if the start block of a certain BIOS is damaged, computer still can be started shooting by another BIOS, and impaired BIOS is replied.Though this kind method has solved the defective of said method, yet this prior art must have the support of two BIOS, and the hardware cost of its needed computer system is higher.
Whether there is a kind of method can solve the defective of above-mentioned two kinds of methods, it is as long as a BIOS also can do the hardware circuit that upgrades and need only increase a little to its block of starting shooting, even if its start block content is damaged also and can automatically it be recovered, this is a problem anxious to be solved.
Summary of the invention
The invention provides the method for a kind of automatic recovery Basic Input or Output System (BIOS) (BIOS), detect the quality of BIOS automatically, and see through network from far end device and the local side computer is carried out the recovery of BIOS by baseboard management controller.
The invention provides a kind of computer and system, do not need to arrange extra hardware mechanisms to remove to protect the start block of BIOS,, all can see through network and the local side computer be carried out the recovery of BIOS from far end device no matter the BIOS storer has or not intact BIOS.
For addressing the above problem computer and system that the present invention proposes the method for a kind of automatic recovery BIOS and uses this method.Whether on the local side computer, it is normal to detect BIOS by baseboard management controller, and obtains testing result.According to this testing result, far end device is sent recovery BIOS notice by baseboard management controller.According to recovering the BIOS notice, provide the BIOS file to baseboard management controller again by far end device.And on the local side computer, the BIOS file is write the BIOS storer by baseboard management controller, to recover BIOS.
The present invention proposes a kind of computer, comprises CPU (central processing unit), baseboard management controller, BIOS storer, first switch element and second switch unit.Baseboard management controller is connected to a network, and wherein when computer was shut down, baseboard management controller was still for enabling.The BIOS storer is in order to storage BIOS.First switch element is coupled between CPU (central processing unit) and the BIOS storer; The second switch unit is coupled between baseboard management controller and the BIOS storer.Wherein when baseboard management controller when to detect BIOS be undesired, see through network by baseboard management controller and far end device is sent recover the BIOS notice.And see through network by far end device and provide the BIOS file to baseboard management controller.And the BIOS file is write the BIOS storer by baseboard management controller, to recover BIOS.
The present invention proposes a kind of computer system, comprises far end device, network and local side computer.The local side computer sees through network-coupled to far end device, and wherein this local side computer comprises CPU (central processing unit), baseboard management controller, BIOS storer, first switch element and second switch unit.
The present invention detects the quality of BIOS automatically by baseboard management controller, and recovers BIOS automatically, no matter therefore the BIOS storer has or not intact BIOS, all can see through network from far end device the local side computer is carried out the BIOS recovery.That is when the BIOS of local side computer start block for damage cause the local side computer system when machine maybe can't be started shooting, baseboard management controller all can detect this situation automatically, and by network BIOS is recovered.Therefore the present invention can not need to increase the start block that extra hardware mechanisms removes to protect BIOS, to reduce the hardware cost of computer system for single BIOS system.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 illustrates and is the flow chart of steps according to a kind of automatic recovery Basic Input or Output System (BIOS) method of one embodiment of the invention.
Fig. 2 illustrates and is computer and computer system architecture figure thereof according to a kind of automatic recovery BIOS of the present invention's one preferable enforcement.
Fig. 3 illustrates and is the operation steps process flow diagram according to the automatic recovery Basic Input or Output System (BIOS) method of another embodiment.
Embodiment
Fig. 1 illustrates and is the flow chart of steps according to a kind of automatic recovery Basic Input or Output System (BIOS) (BasicInput/Output System is hereinafter to be referred as the BIOS) method of one embodiment of the invention.Step S110 is on the local side computer, detects the quality of BIOS by baseboard management controller, and obtains testing result.Step S120 is according to this testing result, by baseboard management controller far end device is sent and recovers the BIOS notice.For example, if baseboard management controller detects BIOS and damages, then far end device is sent " recovering the BIOS notice " by baseboard management controller.Step S130 recovers the BIOS notice according to this, provides the BIOS file to baseboard management controller by far end device.Step S140 then is on the local side computer, by baseboard management controller the BIOS file that far end device provided is write in the BIOS storer.Therefore, cause in case the BIOS of local side computer is undesired the local side computer system when machine maybe can't be started shooting, baseboard management controller can detect this situation automatically, and obtains the BIOS file from far end device, so that recover the BIOS of local side computer.Therefore present embodiment can not need to increase the start block that extra hardware mechanisms removes to protect BIOS, with the hardware cost of reduction computer system for single BIOS system.
Fig. 2 illustrates and is computer and computer system architecture figure thereof according to a kind of automatic recovery BIOS of a preferred embodiment of the present invention.Please refer to Fig. 2, computer system comprises far end device 210, network 220, local side computer 230 and database 240.Local side computer 230 sees through network 220 and is coupled to far end device 210.Far end device 210 is coupled to database 240.The needed BIOS file of each local side computer (for example computer 230 and 250) (for example BIOS image file) in the store electricity brain system in the database 240.In addition, database 240 also has the Identification Data of each local side computer and its BIOS file index relative between the two.Wherein network 220 can be any type of network, for example IP/UDP (Internet Protocol/User Diagram Protocol), RMCP (Remote Management Control Protocol), HTTP etc.And Identification Data can be system management BIOS (System Management BIOS, identity identification data SMBIOS) (Universally Unique Identifier, UUID).
CPU (central processing unit) 231 is coupled to north bridge chips 232.North bridge chips 232 is coupled to South Bridge chip 234 and primary memory 233.233 performed program codes of storage of primary memory, CPU (central processing unit) 231 sees through 233 stored program code of north bridge chips 232 accessing main memories.South Bridge chip 234 is coupled to I/O chip 235 by low pin count (Low Pin Count is called for short LPC) bus.South Bridge chip 234 is done communication with peripheral device (for example peripheral devices such as hard disk, keyboard and mouse), the work of the line data of going forward side by side transmission.
I/O chip 235 can provide the lpc bus of sequence mode and the arranged side by side data-switching interface of extension bus XBUS between the two of mode.First switch element 236 is coupled to and extends between bus XBUS and the BIOS storer 237.First switch element 236 is controlled by control signal Y, and this control signal Y is provided by baseboard management controller 241.By the signal path that first switch element 236 is provided, BIOS storer 237 can be coupled to CPU (central processing unit) 231 with north bridge chips 232 via first switch element 236, extension bus XBUS, I/O chip 235, lpc bus, South Bridge chip 234.BIOS storer 237 is the firmware program code in order to storage BIOS, and accepts the control signal X1 of baseboard management controller 241, uses its enabled state of decision.In addition, have this field know usually the knowledgeable also can be according to its demand accomplished in various ways BIOS storer 237.For example, present embodiment is to realize BIOS storer 237 with flash memory.
The 3rd switch element 240 is coupled between baseboard management controller 241 and the second switch unit 238.Under normal manipulation mode, the 3rd switch element 240 control signal Z (being provided by baseboard management controller 241) is provided and keeps conducting state, makes baseboard management controller 241 be able to access BMC flash memory 239.In present embodiment, BMC flash memory 239 is control signal X2 (being provided by baseboard management controller 241) is provided and determines its enabled state.
The non-volatility memorizer 242 of BMC is coupled to baseboard management controller 241.The non-volatility memorizer 242 of BMC is in order to the significant data of memory substrate Management Controller 241.Baseboard management controller 241 comprises socket card (Network Interface Card, NIC) controller 243 and timer 244.Baseboard management controller 241 sees through its inner socket card controller 243 and is connected to network 220.Baseboard management controller 241 uses the standby voltage source V SB of local side computer 230, and therefore when local side computer 230 was shut down, baseboard management controller 241 was still for enabling.
Recover the BIOS notice according to this, provide a BIOS file to baseboard management controller 241 by far end device 210.In local side computer 230, by baseboard management controller 241 this BIOS file is write BIOS storer 237, to recover the BIOS of local side computer 230.Wherein, at baseboard management controller 241 this BIOS file is write in the process of BIOS storer 237, being connected between baseboard management controller 241 control first switch elements 236 and forbidden energy BIOS storer 237 and the CPU (central processing unit) 231, and control second switch unit 238 enables being connected between BIOS storer 237 and the baseboard management controller 241 with the 3rd switch element 240, so that new BIOS is write BIOS storer 237.
Fig. 3 illustrates and is the operation steps process flow diagram according to the automatic recovery BIOS method of another embodiment.In this embodiment, whether normally baseboard management controller 241 detects BIOS step, is to realize with step S301 and S303.Step S301 for when BIOS when POST begins, count these BIOS by the timer 244 of baseboard management controller 241 and carry out the required on time of POST.Be the timer 244 that begins to start baseboard management controller 241.
Step S303 is then for to judge that whether the POST time of BIOS is greater than Preset Time.Can the default time in timer 244.This Preset Time is the maximum normal boot-strap time that local side computer 230 executes POST.When BIOS complete in the normal POST block program code of will starting shooting in the time, then timer 244 can be stopped timing, that carries out step S304 does not recover BIOS, promptly proceed other boot programs, this moment Management Controller 241 and begin the various significant datas of local side computer are write in the non-volatility memorizer (NVRAM) 242 (step S302).Above-mentioned various significant data can be system management BIOS (systemmanagement BIOS, SMBIOS) data, it may comprise BIOS information (being SMBIOS type 0), system information (being SMBIOS type 1), information substrate (being SMBIOS type 2) and/or system chassis data such as (system enclosure or chassis, promptly SMBIOS type 3).Local side computer 230 can utilize wisdom platform management interface (Intelligent Platform Management Interface is hereinafter to be referred as IPMI) order above-mentioned various significant datas to be write the non-volatility memorizer 242 of BMC.If BIOS does not execute start block program code in Preset Time, then timer 244 generations are overtime, carry out step S305.
Step S305 recovers the BIOS notice for being sent by 241 pairs of far end devices 210 of baseboard management controller.Aforementioned " recovering the BIOS notice " can be the IPMI order.(SystemManagement Software SMS) can remove to check the logout of baseboard management controller 241 to the system management software of far end device 210.Recover the BIOS notice if logout display base plate Management Controller 241 has sent, then carry out step S306.
In this embodiment, providing the step of BIOS file to baseboard management controller 241 by far end device 210, and the BIOS file is write the step of BIOS storer 237, is to realize with step S305～S322.Step S306 is that the system management software of far end device 210 starts the BIOS restore funcitons.Then carry out step S307, the system management software of far end device 210 with an instruction issuing to baseboard management controller 241, to obtain the Identification Data of local side computer 230 to it.As previously mentioned, this Identification Data can be SMBIOS UUID.In present embodiment, this instruction can be the instruction of IPMI.
In step S308, the system management software of far end device 210 is according to the Identification Data that is received, remove from database 240, to find out the BIOS file (for example image file BIOS.img) that is consistent with the Identification Data that is received, so that send baseboard management controller 241 in the subsequent step to.In present embodiment, database 240 has concordance list as shown in table 1.By concordance list, far end device 210 can be inquired about the Identification Data of each local side computer and its BIOS file index relative between the two.First field of table 1 is the identity identification data, and far end device 210 is searched in first field according to the Identification Data (for example UUID) that is received, so that find out BIOS file and the deposit position thereof that conforms in second field.The third column position then is the type that this BIOS file of explanation is consistent.
Table 1: the Identification Data of each local side computer and its BIOS file concordance list between the two.
| Identity identification data (16byte) | The position of BIOS file | Explanation | |
| 304FF29D-1203-4b06-B377-3C22918EBF8F | C:\ | Type | 1 |
| 262F58A0-C5CD-446e-96C7-DD15E466E64B | C:\BIOS2.img | Type 2 | |
| 2DCA7C99-F635-49a1-9756-3A2BDDC65925 | C:\BIOS3.img | Type 3 | |
| 7131C556-07C4-48a4-BC21-695EF40F48D2 | C:\ | Type | 1 |
| 02A0020F-AC87-4dd0-AF12-516DF2F71311 | C:\BIOS3.img | Type 3 |
In step 309, far end device 210 just is cut into many BIOS data to the BIOS file after the BIOS file is got ready, is beneficial in the subsequent step BIOS file be transferred to baseboard management controller 241 stroke by stroke.Present embodiment be with the BIOS data transmission that has been cut into strokes to Management Controller 241, far end device 210 can also once send BIOS to Management Controller 241 and not carry out cutting.This is the transmitting bandwidth restriction of view network 220, or the memory limitations that baseboard management controller 241 can temporal data and deciding.If the lack of memory capacity that baseboard management controller 241 can temporal data, far end device 210 may must be a plurality of BIOS data with the cutting of BIOS file, follows a ground and sends these BIOS data to baseboard management controller 241 for one then.Certainly, if the memory capacity of baseboard management controller 241 is enough stored complete BIOS file, then far end device 210 can also once send the BIOS file to baseboard management controller 241 and need not carry out the action of cutting.
Assign shutdown command (step S310) by 210 pairs of baseboard management controllers 241 of far end device more afterwards.This shutdown command can be IPMI message (request).Baseboard management controller 241 makes 230 shutdown of local side computer according to this shutdown command.As previously mentioned, when local side computer 230 was shut down, baseboard management controller 241 was still for enabling.Therefore after 230 shutdown of local side computer, baseboard management controller 241 still can continue to carry out operation afterwards.
Carry out step S311 again, assign by 210 pairs of baseboard management controllers 241 of far end device and recover order.This recovers order also can be the instruction at wisdom platform management interface.Baseboard management controller 241 just recovers order and sets about carrying out preliminary work according to this.For example, carry out step S312.In step S312, baseboard management controller 241 can go control switch unit 236 by control signal Y, with being connected between forbidden energy BIOS storer 237 and the CPU (central processing unit) 231; And go to control switch unit 238 and 240 by control signal W, Z, to enable being connected between BIOS storer 237 and the baseboard management controller 241.In addition, baseboard management controller 241 more removes forbidden energy BMC flash memory 239 by control signal X2; And remove to enable BIOS storer 237 by control signal X1.。Then carry out step S313, the erase content of BIOS storer 237 of baseboard management controller 241.
In step S314, see through network 220 by far end device 210, with the above-mentioned BIOS data that have been cut into strokes wherein one transfer to baseboard management controller 241.At this, far end device 210 can utilize IMPImessage to carry BIOS data secretly to baseboard management controller 241.
When baseboard management controller 241 intactly receive those BIOS data one of them the time, baseboard management controller 241 carries out step S315 immediately, so that received BIOS data are carried out the error correcting code inspection.For example check checking and (Checksum) of these BIOS data.
After the error correcting code inspection of BIOS data is errorless, carries out step S316 and received BIOS data are write in the BIOS storer 237 by baseboard management controller 241.Then step S317 sees through the instruction that network 220 sends IPMI by far end device 210 and removes to inquire baseboard management controller 241, and this BIOS data have write in the BIOS storer 237.If this BIOS data do not write BIOS storer 237 as yet, then far end device 210 can suspend transmission next record BIOS data.If this BIOS data successfully write BIOS storer 237, then proceed step S318.
In step S318, whether many BIOS data of baseboard management controller 241 meeting determining step S309 institutes cutting are sent to local side computer 230 totally.If the BIOS file intactly sent local side computer 230 to, then far end device 210 can transmit IPMI message and finishes so that inform that many BIOS data transmit totally to baseboard management controller 241.Therefore, if far end device 210 does not transmit the IPMI message of " expression BIOS transmits and finishes " as yet, then proceed step S314, promptly far end device 210 sends next record BIOS data to baseboard management controller 241.If the IPMI message that far end device 210 will " represent that the BIOS transmission finishes " sends baseboard management controller 241 to, then carry out step S319.In step S319, baseboard management controller 241 writes back BIOS storer 237 with the various significant datas that step S302 is backed up.
So far, the work of recovery BIOS be we can say and is come to an end.Proceed step S320, baseboard management controller 241 can go control switch unit 236 by control signal Y, to enable being connected between BIOS storer 237 and the CPU (central processing unit) 231; And go to control switch unit 238 and 240 by control signal W, Z, with being connected between forbidden energy BIOS storer 237 and the baseboard management controller 241, and enable being connected between BMC flash memory 239 and the baseboard management controller 241.In addition, baseboard management controller 241 more removes to enable BMC flash memory 239 by control signal X2; And remove to enable BIOS storer 237 by control signal X1.
In step S321, far end device 210 can see through the instruction that 220 pairs of baseboard management controllers 241 of network are assigned IPMI, and whether inquiry baseboard management controller 241 successfully upgrades BIOS.This inquiry command can be IPMI message (request).According to this inquiry command, whether 210 repayment of 241 pairs of far end devices of baseboard management controller this moment intactly write BIOS in the BIOS storer 237 of local side computer 230.
If the result of baseboard management controller 241 repayment represents successfully not recover the BIOS of computer 230, then carry out step S311 again.If baseboard management controller 241 intactly writes BIOS storer 237 with the BIOS file, then far end device 210 sees through 220 pairs of baseboard management controllers 241 of network and assigns power-on command (step S322).This power-on command can be IPMI message (request).Baseboard management controller 241 starts shooting local side computer 230 according to this power-on command again.When local side computer 230 was started shooting again, baseboard management controller 241 is the state for enabling still.
In sum, can detect the quality of BIOS by baseboard management controller automatically in the present invention, and recover BIOS automatically.Therefore no matter the BIOS storer has or not intact BIOS, all can see through network from far end device the local side computer is carried out the BIOS recovery.So computer system can be designed as single BIOS system, and does not need to increase the start block that extra hardware mechanisms removes to protect BIOS, can reduce the hardware cost of computer system.In addition, because the present invention can detect the quality of BIOS automatically and recover BIOS, the user finds that BIOS has damaged the action of repairing again when start so do not need by the time, and is quite convenient in the operation of start.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claim was defined.
Claims (31)
1. method of automatically recovering Basic Input or Output System (BIOS) comprises:
Whether in a local side computer, it is normal to detect this BIOS by a baseboard management controller, and obtains a testing result;
According to this testing result, by this baseboard management controller one far end device is sent one and recover the BIOS notice;
Recover the BIOS notice according to this, provide a BIOS file to this baseboard management controller by this far end device;
And
In this local side computer, by this baseboard management controller this BIOS file is write a BIOS storer, to recover this BIOS.
2. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, whether normal step comprises to detect this BIOS by this baseboard management controller:
Count this BIOS and carry out a start required on time of selftest;
If this on time greater than a Preset Time, judges that then this BIOS is undesired; And
Produce this testing result to represent that this BIOS is undesired.
3. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, this far end device provides the BIOS file to comprise to the step of this baseboard management controller:
Recover the BIOS notice according to this, start a far end device BIOS restore funcitons of this far end device;
Assign an order to this baseboard management controller, to obtain an Identification Data of this local side computer by this far end device;
According to this Identification Data, find out this BIOS file that meets this local side computer in a database by this far end device; And
Send this BIOS file to this baseboard management controller.
4. the method for automatic recovery BIOS as claimed in claim 3 is characterized in that, this order is wisdom platform management interface instruction.
5. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, also comprises:
By this far end device this baseboard management controller is assigned a shutdown command; And
According to this shutdown command, make this local side shut down of computer by this baseboard management controller, wherein when this local side computer was shut down, this baseboard management controller was still for enabling.
6. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, by this baseboard management controller the step that this BIOS file writes this BIOS storer is comprised:
With this BIOS file cutting is a plurality of BIOS data; And
With those BIOS data transmission to this baseboard management controller.
7. the method for automatic recovery BIOS as claimed in claim 6 is characterized in that, by this baseboard management controller the step that this BIOS file writes this BIOS storer is also comprised:
When this baseboard management controller intactly receive those BIOS data one of them the time, this baseboard management controller carries out an error correcting code inspection with these received BIOS data immediately.
8. the method for automatic recovery BIOS as claimed in claim 7 is characterized in that, this error correcting code inspection comprises BIOS CheckSum.
9. the method for automatic recovery BIOS as claimed in claim 6 is characterized in that, by this baseboard management controller the step that this BIOS file writes this BIOS storer is also comprised:
When this baseboard management controller intactly receive those BIOS data one of them the time, this baseboard management controller writes this BIOS storer with these received BIOS data immediately.
10. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, by this baseboard management controller the step that this BIOS file writes this BIOS storer is comprised:
In this local side computer, being connected between this BIOS storer of forbidden energy and the CPU (central processing unit);
In this local side computer, enable being connected between this BIOS storer and this baseboard management controller; And
By this baseboard management controller this BIOS file is write this BIOS storer.
11. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, by this baseboard management controller the step that this BIOS file writes this BIOS storer is comprised:
The erase content of this BIOS storer; And
This BIOS file is write this BIOS storer.
12. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, also comprises:
When this baseboard management controller intactly writes this BIOS storer with this BIOS file, then this far end device is assigned a power-on command to this baseboard management controller; And
According to this power-on command, by this baseboard management controller this local side computer is started shooting again, wherein when this local side computer was started shooting again, this baseboard management controller was still for enabling.
13. the method for automatic recovery BIOS as claimed in claim 1 is characterized in that, also comprises:
By this far end device this baseboard management controller is assigned an inquiry command; And
According to this inquiry command, whether intactly will this new BIOS file write this BIOS storer of this local side computer by the repayment of this baseboard management controller.
14. a computer comprises:
One CPU (central processing unit);
One baseboard management controller is connected to a network, and wherein when this computer was shut down, this baseboard management controller was still for enabling;
One BIOS storer is in order to store a Basic Input or Output System (BIOS);
One first switch element is coupled between this CPU (central processing unit) and this BIOS storer; And
One second switch unit is coupled between this baseboard management controller and this BIOS storer;
Wherein when this baseboard management controller when to detect this BIOS be undesired, see through this network by this baseboard management controller and one far end device is sent one recover the BIOS notice; Seeing through this network by this far end device provides a BIOS file to this baseboard management controller; And this BIOS file is write this BIOS storer by this baseboard management controller, to recover this BIOS.
15. computer as claimed in claim 14 is characterized in that, this far end device sees through this network this baseboard management controller is assigned a shutdown command; And after this baseboard management controller makes this shut down of computer according to this shutdown command, just this BIOS file is write this BIOS storer.
16. computer as claimed in claim 14 is characterized in that, this BIOS file comprises a plurality of BIOS data; And when this baseboard management controller intactly receive those BIOS data one of them the time, this baseboard management controller carries out an error correcting code inspection with these received BIOS data immediately.
17. computer as claimed in claim 16 is characterized in that, this error correcting code inspection comprises BIOSCheckSum.
18. computer as claimed in claim 14 is characterized in that, this BIO file comprises a plurality of BIOS data;
And when this baseboard management controller intactly receive those BIOS data one of them the time, this baseboard management controller writes this BIOS storer with these received BIOS data immediately.
19. computer as claimed in claim 14 is characterized in that, erase the earlier content of this BIOS storer of this baseboard management controller writes this BIOS storer with this BIOS file then.
20. computer as claimed in claim 14 is characterized in that, this far end device sees through this network this baseboard management controller is assigned an inquiry command; And whether this baseboard management controller intactly writes this BIOS file the BIOS storer of this computer according to this inquiry command repayment.
21. computer as claimed in claim 14 is characterized in that, when this baseboard management controller intactly writes this BIOS storer with this BIOS file, this far end device sees through this network this baseboard management controller is assigned a power-on command; And this baseboard management controller starts shooting this computer according to this power-on command again.
22. computer as claimed in claim 14, it is characterized in that, this baseboard management controller this BIOS file is write this BIOS storer during, this baseboard management controller is controlled this first switch element with being connected between this BIOS storer of forbidden energy and this CPU (central processing unit); And control this second switch unit to enable being connected between this BIOS storer and this baseboard management controller.
23. a computer system comprises:
-far end device;
-network; And
The local side computer sees through this network-coupled to this far end device, and wherein this local side computer comprises:
-CPU (central processing unit);
-baseboard management controller is connected to this network, and wherein when this local side computer was shut down, this baseboard management controller was still for enabling;
-BIOS storer is in order to store a Basic Input or Output System (BIOS);
-the first switch element is coupled between this CPU (central processing unit) and this BIOS storer; And
One second switch unit is coupled between this baseboard management controller and this BIOS storer;
Be one when undesired wherein, see through this network by this baseboard management controller and this far end device is sent one recover the BIOS notice when this baseboard management controller detects this BIOS; Seeing through this network by this far end device provides a BIOS file to this baseboard management controller; And this BIOS file is write this BIOS storer by this baseboard management controller, to recover this BIOS.
24. computer system as claimed in claim 23 is characterized in that, this far end device sees through this network this baseboard management controller is assigned a shutdown command; And after this baseboard management controller makes this local side shut down of computer according to this shutdown command, just this BIOS file is write this BIOS storer.
25. computer system as claimed in claim 23 is characterized in that, this BIOS file comprises a plurality of BIOS data; And when this baseboard management controller intactly receive those BIOS data one of them the time, this baseboard management controller carries out an error correcting code inspection with these received BIOS data immediately.
26. computer system as claimed in claim 25 is characterized in that, this error correcting code inspection comprises BIOSCheckSum.
27. computer system as claimed in claim 23 is characterized in that, this BIOS file comprises a plurality of BIOS data; And when this baseboard management controller intactly receive those BIOS data one of them the time, this baseboard management controller writes this BIOS storer with these received BIOS data immediately.
28. computer system as claimed in claim 23 is characterized in that, erase the earlier content of this BIOS storer of this baseboard management controller writes this BIOS storer with this BIOS file then.
29. computer system as claimed in claim 23 is characterized in that, this far end device sees through this network this baseboard management controller is assigned an inquiry command; And whether this baseboard management controller intactly writes this BIOS file the BIOS storer of this local side computer according to this inquiry command repayment.
30. computer system as claimed in claim 23 is characterized in that, when this baseboard management controller intactly writes this BIOS storer with this BIOS file, this far end device sees through this network this baseboard management controller is assigned a power-on command; And this baseboard management controller starts shooting this local side computer according to this power-on command again.
31. computer system as claimed in claim 23, it is characterized in that, this baseboard management controller this BIOS file is write this BIOS storer during, this baseboard management controller is controlled this first switch element with being connected between this BIOS storer of forbidden energy and this CPU (central processing unit); And control this second switch unit to enable being connected between this BIOS storer and this baseboard management controller.
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| CNA2007101412916A CN101364193A (en) | 2007-08-06 | 2007-08-06 | BIOS automatic recovery method and computer and system using the method |
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| CNA2007101412916A CN101364193A (en) | 2007-08-06 | 2007-08-06 | BIOS automatic recovery method and computer and system using the method |
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| CNA2007101412916A Pending CN101364193A (en) | 2007-08-06 | 2007-08-06 | BIOS automatic recovery method and computer and system using the method |
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