CN103577201A - Embedded dual system updating method and system - Google Patents
Embedded dual system updating method and system Download PDFInfo
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- CN103577201A CN103577201A CN201210254285.2A CN201210254285A CN103577201A CN 103577201 A CN103577201 A CN 103577201A CN 201210254285 A CN201210254285 A CN 201210254285A CN 103577201 A CN103577201 A CN 103577201A
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Abstract
The invention discloses an embedded dual system updating method. The embedded dual system updating method comprises the following steps of S1, receiving and parsing update instructions under boostloader mode to obtain an update mode and updated image files; S2 judging whether the update mode is the overall update mode of the image files, if so, turning to S3, and if not, turning to S4; S3, reading the partition information of the memory device of the updated image files and repartitioning the memory device; S4, writing the portion of the image file, which is in one-to-one correspondence with the update mode, in the partition of the memory device, which is in one-to-one correspondence with the update mode. The invention discloses an embedded dual system updating system. The embedded dual system updating method and device update any needed partial image or whole image in a simple and flexible mode and successfully solve the problems of complex operation and long duration, which technicians encounter when updating images of a system.
Description
Technical field
The present invention relates to a kind of update method and system of Embedded Double system, particularly relating to a kind of is exactly one section of small routine of operation before operating system nucleus operation at bootloader(BootLoader.By this section of small routine, we can initiating hardware equipment, set up memory headroom mapping graph, thereby take the hardware environment of system to a proper states, to be ready to correct environment for final call operation system kernel.In embedded system, conventionally not as BIOS(Basic Input or Output System (BIOS)) firmware program (notes, some embedded type CPUs also can embedded one section of short and small start-up routine), so the loading initiating task of whole system is just completed by BootLoader completely.) update method and the system of Embedded Double system under pattern.
Background technology
Along with development information-based, intelligent, networking, embedded system technology has obtained wide development space, is widely used at present a plurality of fields such as network service, consumer electronics, manufacture, safety-protection system, Industry Control, military affairs.The function of application software is now enriched constantly, makes us more and more higher to the stability requirement of operating system, yet when system runs into irreversible destruction, we need the recovery system operation rapidly of a kind of simple and effective way.
Adopting commonplace method is at present dual system, but there is certain defect in current Dual System Design, such as existing dual system update mode is complicated, for example, to memory device (a flash(flash memory)) subregion and complicated operation, this just makes technician will face complicated operation when upgrading system image, and the time of cost is also longer.Therefore, need a kind of mode simple to operation to overcome the problems referred to above.。
Summary of the invention
The technical problem to be solved in the present invention be for overcome the update mode of Embedded Double system in prior art complicated, when dual system is upgraded the complicated operation defect of growing, having increased the weight of technician's burden consuming time, update method and the system of the Embedded Double system in the space that a kind of update mode flexibly, rationally utilizes memory device are provided.
The present invention solves above-mentioned technical matters by following technical proposals:
A kind of update method of Embedded Double system, its feature is, this Embedded Double system comprises a memory device, this memory device is for memory image file, this image file comprises the kernel of log-on message, bootloader image file, the first system and the kernel of root file and second system and root file, in this log-on message, also comprise storage device configurations information, this storage device configurations information comprises storage equipment partition information, and the update method of this Embedded Double system comprises the following steps:
Step S
1, under bootloader pattern, receive and resolve update instruction to obtain the image file of new model more and renewal;
Step S
2, judge this more new model whether be image file whole updating pattern, if so, enter step S
3; If not, enter step S
4;
Step S
3, read storage equipment partition information in the image file of this renewal and by this memory device again subregion;
Step S
4, by the image file of this renewal with this more new model one to one part write in this memory device and this new model one to one in subregion more.
Preferably, this storage equipment partition comprises: log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition.
Preferably, when this is when more new model is this image file whole updating pattern,
Step S
3in read the storage equipment partition information in the image file of this renewal and be log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition by this memory device again subregion;
Step S
4middle storage device configurations information in the image file of this renewal is write to this log-on message subregion, bootloader image file is write to this bootloader subregion, the kernel of the first system and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition, or
When this more new model be log-on message more during new model,
Step S
4middle storage device configurations information in the image file of this renewal is write in this log-on message subregion, or,
When this more new model be bootloader mirror image more during new model,
Step S
4middle bootloader image file in the image file of this renewal is write in this bootloader subregion, or,
When this is when more new model is kernel and root file update pattern,
Step S
4middle the kernel of the first system in the image file of this renewal and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition.
Preferably, in this log-on message, also comprise the start address of this bootloader image file and the kernel of the address space size that takies, this first system and the enabling address of root file, the kernel of this first system and the proof test value of root file, the address space the taking size of the kernel of this first system and root file, the kernel of this second system and the enabling address of root file, the kernel of this second system and the proof test value of root file, the address space the taking size of the kernel of this second system and root file.
Preferably, this memory device is a flash equipment.
The present invention also provides a kind of renewal system of Embedded Double system, its feature is, this Embedded Double system comprises a memory device, this memory device is for memory image file, this image file comprises the kernel of log-on message, bootloader image file, the first system and the kernel of root file and second system and root file, in this log-on message, also comprise storage device configurations information, this storage device configurations information comprises storage equipment partition information, and the renewal system of this Embedded Double system also comprises:
One input media, for receiving and resolve update instruction to obtain the image file of new model more and renewal under bootloader pattern;
One control device, for judge this more new model whether be image file whole updating pattern, if so, enable a partitioning device; If not, enable a updating device;
This partitioning device for read this renewal image file storage equipment partition information and by this memory device again subregion;
This updating device for by the image file of this renewal with this more new model one to one part write in this memory device and this new model one to one in subregion more.
Preferably, this storage equipment partition comprises: log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition.
Preferably, when this is when more new model is this image file whole updating pattern,
This partitioning device is also log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition by this memory device again subregion for reading the storage equipment partition information of the image file of this renewal;
This updating device is for writing the storage device configurations information of the image file of this renewal this log-on message subregion, bootloader image file is write to this bootloader subregion, the kernel of the first system and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition, or
When this more new model be log-on message more during new model,
This updating device is used for the storage device configurations information of the image file of this renewal to write in this log-on message subregion, or,
When this more new model be bootloader mirror image more during new model,
This updating device is used for the bootloader image file of the image file of this renewal to write in this bootloader subregion, or,
When this is when more new model is kernel and root file update pattern,
This updating device is for writing the kernel of the first system of the image file of this renewal and root file this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition.
Preferably, in this log-on message, also comprise the start address of this bootloader image file and the kernel of the address space size that takies, this first system and the enabling address of root file, the kernel of this first system and the proof test value of root file, the address space the taking size of the kernel of this first system and root file, the kernel of this second system and the enabling address of root file, the kernel of this second system and the proof test value of root file, the address space the taking size of the kernel of this second system and root file.
Preferably, this memory device is a flash equipment.
Positive progressive effect of the present invention is:
1, update method and the system of the Embedded Double system that can upgrade in time are provided, its can simple and flexible mode upgrade any needed part mirror image or whole mirror image, successfully solve the longer problem of complicated operation, spended time that technician faces when upgrading system image, improved production efficiency.
2, effective and reasonable utilization the space of memory device (a for example flash), because dual system is common, using a bootloader mirror image is that memory device has been saved a lot of spaces.The information subregion of flash equipment provides a platform that system starting state is well set simultaneously.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of update method of the Embedded Double system of one embodiment of the invention.
Fig. 2 is the structured flowchart of renewal system of the Embedded Double system of one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present invention, to describe technical scheme of the present invention in detail.
With reference to figure 1, the update method of Embedded Double system of the present invention, this Embedded Double system comprises a memory device, this memory device is for memory image file, this image file comprises the kernel of log-on message, bootloader image file, the first system and the kernel of root file and second system and root file, in this log-on message, also comprise storage device configurations information, this storage device configurations information comprises storage equipment partition information, and the update method of this Embedded Double system comprises the following steps:
Step S
1, under bootloader pattern, receive and resolve update instruction to obtain the image file of new model more and renewal;
Step S
2, judge this more new model whether be image file whole updating pattern, if so, enter step S
3; If not, enter step S
4;
Step S
3, read storage equipment partition information in the image file of this renewal and by this memory device again subregion;
Step S
4, by the image file of this renewal with this more new model one to one part write in this memory device and this new model one to one in subregion more.
Specifically, this storage equipment partition comprises: log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition.
More specifically, for various more new model,
When this is when more new model is this image file whole updating pattern,
Step S
3in read the storage equipment partition information in the image file of this renewal and be log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition by this memory device again subregion;
Step S
4middle storage device configurations information in the image file of this renewal is write to this log-on message subregion, bootloader image file is write to this bootloader subregion, the kernel of the first system and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition, or
When this more new model be log-on message more during new model,
Step S
4middle storage device configurations information in the image file of this renewal is write in this log-on message subregion, or,
When this more new model be bootloader mirror image more during new model,
Step S
4middle bootloader image file in the image file of this renewal is write in this bootloader subregion, or,
When this is when more new model is kernel and root file update pattern,
Step S
4middle the kernel of the first system in the image file of this renewal and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition.
Wherein, in this log-on message, also comprise the start address of this bootloader image file and the kernel of the address space size that takies, this first system and the enabling address of root file, the kernel of this first system and the proof test value of root file, the address space the taking size of the kernel of this first system and root file, the kernel of this second system and the enabling address of root file, the kernel of this second system and the proof test value of root file, the address space the taking size of the kernel of this second system and root file.
In the present embodiment, this memory device is a flash equipment.
With reference to figure 2, the renewal system of Embedded Double system of the present invention, this Embedded Double system comprises a memory device 1, this memory device is for memory image file, this image file comprises the kernel of log-on message, bootloader image file, the first system and the kernel of root file and second system and root file, in this log-on message, also comprise storage device configurations information, this storage device configurations information comprises storage equipment partition information, and the renewal system of this Embedded Double system also comprises:
One input media 2, for receiving and resolve update instruction to obtain the image file of new model more and renewal under bootloader pattern;
One control device 3, for judge this more new model whether be image file whole updating pattern, if so, enable a partitioning device 4; If not, enable a updating device 5;
This partitioning device 4 for read this renewal image file storage equipment partition information and by this memory device 1 again subregion;
This updating device 5 for by the image file of this renewal with this more new model one to one part write in this memory device 1 and this new model one to one in subregion more.
Specifically, this storage equipment partition comprises: log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition.
More specifically, for various more new model,
When this is when more new model is this image file whole updating pattern,
This partitioning device 4 is also log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition by this memory device again subregion for reading the storage equipment partition information of the image file of this renewal;
This updating device 5 is for writing the storage device configurations information of the image file of this renewal this log-on message subregion, bootloader image file being write to this bootloader subregion, the kernel of the first system and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition, or
When this more new model be log-on message more during new model,
This updating device 5 is for the storage device configurations information of the image file of this renewal is write in this log-on message subregion, or,
When this more new model be bootloader mirror image more during new model,
This updating device 5 is for the bootloader image file of the image file of this renewal is write in this bootloader subregion, or,
When this is when more new model is kernel and root file update pattern,
This updating device 5 is for writing the kernel of the first system of the image file of this renewal and root file this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition.
Wherein, in this log-on message, also comprise the start address of this bootloader image file and the kernel of the address space size that takies, this first system and the enabling address of root file, the kernel of this first system and the proof test value of root file, the address space the taking size of the kernel of this first system and root file, the kernel of this second system and the enabling address of root file, the kernel of this second system and the proof test value of root file, the address space the taking size of the kernel of this second system and root file.
This memory device 1 is a flash equipment in the present embodiment.
Next, take the entire flow of startup of an Embedded Double system as example further illustrates technical scheme of the present invention, hereinafter for the facility on describing, dual system is called respectively to system A and system B.
This Embedded Double system comprises the image file (whether system A and system B share a bootloader image file in the present invention) of Embedded Double system, and starts the system boot method that flow process comprises default system bootstrap technique and update mode.Described image file is by log-on message part, and bootloader mirror image part and kernel and root file mirror image thereof partly form (operating system software that the two effect altogether of kernel and root file mirror image thereof is equivalent to PC).Log-on message partly comprises flash configuration information, the address space size that bootloader mirror image opens beginning address and takies, the address space size (here, system image refers to kernel and root file mirror image thereof) that system image enabling address, system image proof test value and system image take.
Described flash configuration information comprises flash equipment partition information, the enabling address of the enabling address of system image A and system image B.
Described flash equipment comprises bootloader subregion (bootloader subregion is used for depositing bootloader image file), log-on message subregion, system image A subregion, system image B subregion, environmental variance subregion (some parameters that wherein environmental variance subregion starts for storage system) and reserved partition.
The flow process of described default system bootstrap technique is, first in obtaining information subregion about starting the information of system, judgement system is selected from which mirrored partition to start, and then reads enabling address corresponding in log-on message and the proof test value of mirror image.If the proof test value of verification mirror image is correct, program will jump to the place, enabling address reading and go operation; If incorrect, select another one mirrored partition to start, and read its corresponding enabling address in log-on message subregion, the proof test value of verification mirror image, if correct, program is gone operation to the place, enabling address reading.If two systems all can not normally start, or the proof test value of verification mirror image is all incorrect, and system enters the system guiding that the renewal orders to be entered such as command mode enter update mode.
The system boot method of described update mode comprises more newer command, more new model and system guidance mode.Wherein more new model comprises more new model of log-on message part, and bootloader mirror image is new model more, and kernel and root file mirror image thereof be new model more, and whole mirror image is new model more.The system boot method detailed process of update mode is as follows, when system enters after command mode, inputs more newer command and more after new model, judges that it belongs to above-mentioned any more new model:
If a) belong to more new model of whole mirror image, read the flash equipment partition information of flash configuration information, flash equipment is divided into bootloader subregion, log-on message subregion, system image A subregion, system image B subregion, environmental variance subregion and reserved partition are (while needing other subregions, then the flash configuration information that only need remodify the image file of Embedded Double system reuses the system boot method guidance system of update mode), then bootloader mirror image is write to bootloader subregion, flash configuration information write-enable information subregion, kernel and root file mirror image thereof write system image A subregion and system image B subregion.
B) if log-on message part new model more, only need be by flash configuration information write-enable information subregion.
C) if bootloader mirror image new model more only need write bootloader mirror image bootloader subregion.
D) if kernel and root file mirror image thereof new model more need write system image A subregion and system image B subregion by kernel and root file mirror image thereof.
Then restarting systems, then starts system according to default system bootstrap technique.
The invention provides update method and the system of the Embedded Double system that can upgrade in time, its can simple and flexible mode upgrade any needed part mirror image or whole mirror image, successfully solve the longer problem of complicated operation, spended time that technician faces when upgrading system image, improved production efficiency.And effective and reasonable utilization the space of memory device (a for example flash), because dual system is common, using a bootloader mirror image is that memory device has been saved a lot of spaces.The information subregion of flash equipment provides a platform that system starting state is well set simultaneously.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. the update method of an Embedded Double system, it is characterized in that, this Embedded Double system comprises a memory device, this memory device is for memory image file, this image file comprises the kernel of log-on message, bootloader image file, the first system and the kernel of root file and second system and root file, in this log-on message, also comprise storage device configurations information, this storage device configurations information comprises storage equipment partition information, and the update method of this Embedded Double system comprises the following steps:
Step S
1, under bootloader pattern, receive and resolve update instruction to obtain the image file of new model more and renewal;
Step S
2, judge this more new model whether be image file whole updating pattern, if so, enter step S
3; If not, enter step S
4;
Step S
3, read storage equipment partition information in the image file of this renewal and by this memory device again subregion;
Step S
4, by the image file of this renewal with this more new model one to one part write in this memory device and this new model one to one in subregion more.
2. the update method of Embedded Double system as claimed in claim 1, is characterized in that, this storage equipment partition comprises: log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition.
3. the update method of Embedded Double system as claimed in claim 1, is characterized in that,
When this is when more new model is this image file whole updating pattern,
Step S
3in read the storage equipment partition information in the image file of this renewal and be log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition by this memory device again subregion;
Step S
4middle storage device configurations information in the image file of this renewal is write to this log-on message subregion, bootloader image file is write to this bootloader subregion, the kernel of the first system and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition, or
When this more new model be log-on message more during new model,
Step S
4middle storage device configurations information in the image file of this renewal is write in this log-on message subregion, or,
When this more new model be bootloader mirror image more during new model,
Step S
4middle bootloader image file in the image file of this renewal is write in this bootloader subregion, or,
When this is when more new model is kernel and root file update pattern,
Step S
4middle the kernel of the first system in the image file of this renewal and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition.
4. the update method of Embedded Double system as claimed in claim 1, it is characterized in that, the address space size that also comprises the start address of this bootloader image file in this log-on message and take, the enabling address of the kernel of this first system and root file, the proof test value of the kernel of this first system and root file, the address space the taking size of the kernel of this first system and root file, the enabling address of the kernel of this second system and root file, the proof test value of the kernel of this second system and root file, the address space the taking size of the kernel of this second system and root file.
5. the update method of the Embedded Double system as described in any one in claim 1-4, is characterized in that, this memory device is a flash equipment.
6. the renewal system of an Embedded Double system, it is characterized in that, this Embedded Double system comprises a memory device, this memory device is for memory image file, this image file comprises the kernel of log-on message, bootloader image file, the first system and the kernel of root file and second system and root file, in this log-on message, also comprise storage device configurations information, this storage device configurations information comprises storage equipment partition information, and the renewal system of this Embedded Double system also comprises:
One input media, for receiving and resolve update instruction to obtain the image file of new model more and renewal under bootloader pattern;
One control device, for judge this more new model whether be image file whole updating pattern, if so, enable a partitioning device; If not, enable a updating device;
This partitioning device for read this renewal image file storage equipment partition information and by this memory device again subregion;
This updating device for by the image file of this renewal with this more new model one to one part write in this memory device and this new model one to one in subregion more.
7. the renewal system of Embedded Double system as claimed in claim 6, is characterized in that, this storage equipment partition comprises: log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition.
8. the renewal system of Embedded Double system as claimed in claim 6, is characterized in that,
When this is when more new model is this image file whole updating pattern,
This partitioning device is also log-on message subregion, bootloader subregion, the first system mirrored partition and second system mirrored partition by this memory device again subregion for reading the storage equipment partition information of the image file of this renewal;
This updating device is for writing the storage device configurations information of the image file of this renewal this log-on message subregion, bootloader image file is write to this bootloader subregion, the kernel of the first system and root file are write to this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition, or
When this more new model be log-on message more during new model,
This updating device is used for the storage device configurations information of the image file of this renewal to write in this log-on message subregion, or,
When this more new model be bootloader mirror image more during new model,
This updating device is used for the bootloader image file of the image file of this renewal to write in this bootloader subregion, or,
When this is when more new model is kernel and root file update pattern,
This updating device is for writing the kernel of the first system of the image file of this renewal and root file this first system mirrored partition and the kernel of second system and root file are write in this second system mirrored partition.
9. the renewal system of Embedded Double system as claimed in claim 6, it is characterized in that, the address space size that also comprises the start address of this bootloader image file in this log-on message and take, the enabling address of the kernel of this first system and root file, the proof test value of the kernel of this first system and root file, the address space the taking size of the kernel of this first system and root file, the enabling address of the kernel of this second system and root file, the proof test value of the kernel of this second system and root file, the address space the taking size of the kernel of this second system and root file.
10. the renewal system of the Embedded Double system as described in any one in claim 6-9, is characterized in that, this memory device is a flash equipment.
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