CN103092662A - Software module upgrading method for terminal device based on embedded operating system - Google Patents
Software module upgrading method for terminal device based on embedded operating system Download PDFInfo
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Abstract
The invention relates to a software module upgrading method for a terminal device based on an embedded operating system. A nonvolatile memory for storing software images in the terminal device is divided into a primary partition and a backup partition which all respectively adopt a read-only file system. When a software module is upgraded, the software images in the primary partition are all read and written in the backup partition. A software module upgrade patch is obtained and is used for carrying out software module upgrading operations to the software images in the backup partition. After the software module upgrading operations are completed, the primary partition and the backup partition are subjected to switching, and then the terminal device is restarted according to the software images in a novel primary partition. The whole upgrading process is completed. Through adoption of the software module upgrading method, the software module upgrading in the read-on file system can be realized. The whole software module upgrading process is safe, and normal operation of the embedded operating system is guaranteed.
Description
Technical field
The present invention relates to terminal device software module upgrade technical field, is a kind of software module upgrade method of the terminal device based on embedded OS specifically.
Background technology
At present, terminal device roughly can be divided into: hand-held terminal device, data terminal equipment, network-termination device etc.These terminal devices have mostly adopted embedded OS, i.e. embedded type terminal equipment.Comprise Software Mirroring in embedded type terminal equipment, Software Mirroring comprises some software modules, need to come the development of adaptive technique, the evolution of agreement, the variation of software requirement by software upgrading.The content of upgrading when needs or not whole Software Mirroring is upgraded seldom the time, only need to carry out the software module upgrading, i.e. modifying, adjust, replacing indivedual or part software module.
Specifically, the software module upgrading refers to: in some cases, only the part software module in embedded type terminal equipment is modified, adjusts, replaced, replace a kind of method of the whole Software Mirroring of upgrading.The software module that wherein can carry out the software module upgrading comprises but is not limited to: application program module, kernel module, script module and profile module etc.
In addition, in the process of embedded type terminal equipment operation, if because the software module upgrading causes some software module (such as kernel module, application program module etc.) damaged, embedded OS can not normally move.Therefore, guarantee that some software module is vital during upgrading not being damaged of software module.
Summary of the invention
For the defective that exists in prior art, the object of the present invention is to provide a kind of software module upgrade method of the terminal device based on embedded OS, nonvolatile memory is divided into active and standby subregion with the storing software mirror image, and active and standby subregion adopts read-only file system, by reading and writing nonvolatile memory, operation document system, execution shell script, realize carry out the software module upgrading based on the read-only file system in the terminal device of embedded OS.
For reaching above purpose, the technical scheme that the present invention takes is:
A kind of software module upgrade method of the terminal device based on embedded OS is characterized in that, comprises the following steps:
Step 1 is used for marking off active and standby subregion in the nonvolatile memory of storing software mirror image in terminal device, and active and standby subregion all adopts read-only file system,
Step 2 when beginning to carry out the software module upgrading, first all reads the Software Mirroring in the main partition and is written in the back-up district, makes the Software Mirroring in active and standby subregion keep in full accord,
Step 3 is obtained the software module AKU,
Step 4 is carried out software module updating operation to Software Mirroring with the software module AKU in the back-up district,
After step 5, software module upgrade operation, active and standby subregion is switched, make original back-up district become new main partition, main partition originally becomes new back-up district,
Step 6 is restarted terminal device, and terminal device starts by the Software Mirroring in new main partition, and whole escalation process is complete.
On the basis of technique scheme, software module is upgraded unsuccessfully, and embedded system is switched go back to former main partition and guaranteed normal operation.
On the basis of technique scheme, except active and standby subregion, also dividing in nonvolatile memory has the uboot subregion, kernel subregion, read-write file partition.
On the basis of technique scheme, described software module AKU comprises:
General shell script, it is used for calling one by one concrete shell script,
At least one concrete shell script carries out updating operation with new software module entity to the software module of current Software Mirroring in the back-up district,
New software module entity.
On the basis of technique scheme, the concrete steps of step 4 are:
Step 4.1 read-only file system in back-up district is mounted in memory file system, and the carry mode is read-write;
Step 4.2 is transferred to the software module AKU in memory file system, and it is decompressed, and obtains general shell script, concrete shell script and new software module entity;
Step 4.3 is first called general shell script, calls one by one concrete shell script by general shell script, and concrete shell script carries out updating operation with new software module entity to current software module in the back-up district,
Described updating operation comprises:
With new software module entity to the operation of modifying of current software module in the back-up district,
Or with new software module entity, current software module in the back-up district is carried out the parameter adjustment operation,
Or with new software module entity, current software module in the back-up district is carried out replacement operation.
The software module upgrade method of the terminal device based on embedded OS of the present invention can realize the software module upgrading in read-only file system, and whole software module escalation process is very safe, guarantees that embedded OS normally moves.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 is the process flow diagram of software module upgrading,
Fig. 2 is the content structure figure of module upgrade bag,
Fig. 3 is the subregion partition structure figure of nonvolatile memory.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, the software module upgrade method of the terminal device based on embedded OS of the present invention comprises the following steps:
Step 1, be used in the nonvolatile memory of storing software mirror image in terminal device, mark off active and standby subregion, and active and standby subregion all adopts read-only file system, active and standby subregion is only in the situation that there is the authority license just can carry out write operation, this authority license just gives when module upgrade usually temporarily
Step 2 when beginning to carry out the software module upgrading, first all reads the Software Mirroring in the main partition and is written in the back-up district, makes the Software Mirroring in active and standby subregion keep in full accord,
Step 3 is obtained the software module AKU,
Step 4 is carried out software module updating operation to Software Mirroring with the software module AKU in the back-up district,
After step 5, software module upgrade operation, active and standby subregion is switched, make original back-up district become new main partition, main partition originally becomes new back-up district,
Step 6 is restarted terminal device, and terminal device starts by the Software Mirroring in new main partition, and whole escalation process is complete.
The present invention is Software Mirroring in the back-up district by the operand that makes software module upgrading, Software Mirroring in the current main partition of using of system is had no effect, even software module is upgraded unsuccessfully, embedded system still changeable time former main partition is guaranteed normal operation.
On the basis of technique scheme, as shown in Figure 3, except active and standby subregion, also dividing in nonvolatile memory has uboot(to start guiding) subregion, kernel subregion, read-write file partition.
On the basis of technique scheme, as shown in Figure 2, described software module AKU comprises:
General shell script, it is used for calling one by one concrete shell script,
At least one concrete shell script carries out updating operation with new software module entity to the software module of current Software Mirroring in the back-up district,
New software module entity.
On the basis of technique scheme, the concrete steps of step 4 are:
Step 4.1 read-only file system in back-up district is mounted in memory file system, and the carry mode is read-write;
Step 4.2 is transferred to the software module AKU in memory file system, and it is decompressed, and obtains general shell script, concrete shell script and new software module entity;
Step 4.3 is first called general shell script, calls one by one concrete shell script by general shell script, and concrete shell script carries out updating operation with new software module entity to current software module in the back-up district,
Described updating operation comprises:
With new software module entity to the operation of modifying of current software module in the back-up district,
Or with new software module entity, current software module in the back-up district is carried out the parameter adjustment operation,
Or with new software module entity, current software module in the back-up district is carried out replacement operation.
The above is only preferred embodiment of the present invention, is not limited to the present invention, all any modifications of making within the present invention spirit and principle, is equal to replacement and improvement etc., within all being contained in protection scope of the present invention.
The content that is not described in detail in this instructions belongs to the known prior art of this area professional and technical personnel.
Claims (5)
1. the software module upgrade method based on the terminal device of embedded OS, is characterized in that, comprises the following steps:
Step 1 is used for marking off active and standby subregion in the nonvolatile memory of storing software mirror image in terminal device, and active and standby subregion all adopts read-only file system,
Step 2 when beginning to carry out the software module upgrading, first all reads the Software Mirroring in the main partition and is written in the back-up district, makes the Software Mirroring in active and standby subregion keep in full accord,
Step 3 is obtained the software module AKU,
Step 4 is carried out software module updating operation to Software Mirroring with the software module AKU in the back-up district,
After step 5, software module upgrade operation, active and standby subregion is switched, make original back-up district become new main partition, main partition originally becomes new back-up district,
Step 6 is restarted terminal device, and terminal device starts by the Software Mirroring in new main partition, and whole escalation process is complete.
2. the software module upgrade method of the terminal device based on embedded OS as claimed in claim 1, it is characterized in that: software module is upgraded unsuccessfully, and embedded system is switched go back to former main partition and is guaranteed normal operation.
3. the software module upgrade method of the terminal device based on embedded OS as claimed in claim 1, it is characterized in that: except active and standby subregion, also dividing in nonvolatile memory has the uboot subregion, kernel subregion, read-write file partition.
4. the software module upgrade method of the terminal device based on embedded OS as claimed in claim 1, it is characterized in that: described software module AKU comprises:
General shell script, it is used for calling one by one concrete shell script,
At least one concrete shell script carries out updating operation with new software module entity to the software module of current Software Mirroring in the back-up district,
New software module entity.
5. the software module upgrade method of the terminal device based on embedded OS as claimed in claim 1, is characterized in that, the concrete steps of step 4 are:
Step 4.1 read-only file system in back-up district is mounted in memory file system, and the carry mode is read-write;
Step 4.2 is transferred to the software module AKU in memory file system, and it is decompressed, and obtains general shell script, concrete shell script and new software module entity;
Step 4.3 is first called general shell script, calls one by one concrete shell script by general shell script, and concrete shell script carries out updating operation with new software module entity to current software module in the back-up district,
Described updating operation comprises:
With new software module entity to the operation of modifying of current software module in the back-up district,
Or with new software module entity, current software module in the back-up district is carried out the parameter adjustment operation,
Or with new software module entity, current software module in the back-up district is carried out replacement operation.
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| CN104572229A (en) * | 2015-02-12 | 2015-04-29 | 西安诺瓦电子科技有限公司 | Firmware upgrade method and firmware upgrade device for embedded system |
| CN104657173A (en) * | 2015-02-03 | 2015-05-27 | 烽火通信科技股份有限公司 | Processing method for not interrupting service during upgrading of card software |
| CN104834547A (en) * | 2015-05-14 | 2015-08-12 | 烽火通信科技股份有限公司 | Remote upgrade method and system of Squashfs read-only root file system |
| CN104866336A (en) * | 2014-02-25 | 2015-08-26 | 福特全球技术公司 | Silent in-vehicle software updates |
| CN104967497A (en) * | 2015-06-09 | 2015-10-07 | 武汉数字派特科技有限公司 | Network communication protocol-based reliable data transmission method and upgrading method |
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| CN105429790A (en) * | 2015-11-04 | 2016-03-23 | 上海斐讯数据通信技术有限公司 | ONU (Optical Network Unit) upgrading method and system and optical network system |
| CN105868048A (en) * | 2015-12-11 | 2016-08-17 | 乐视移动智能信息技术（北京）有限公司 | Backup method and apparatus in android system upgrading and related device |
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| WO2018014687A1 (en) * | 2016-07-18 | 2018-01-25 | 深圳市中兴微电子技术有限公司 | Parameter passing method and apparatus, and computer storage medium |
| CN106775705A (en) * | 2016-12-12 | 2017-05-31 | 西安邮电大学 | A kind of software module division methods |
| CN106775705B (en) * | 2016-12-12 | 2019-10-11 | 西安邮电大学 | A kind of software module division methods |
| CN106598597A (en) * | 2016-12-14 | 2017-04-26 | 普华基础软件股份有限公司 | Electronic control unit-based application software refreshing method |
| CN113535255A (en) * | 2021-06-07 | 2021-10-22 | 山东泰物信息技术有限公司 | Method for asynchronously updating embedded linux firmware based on cryptographic algorithm |
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