CN106933604B - System upgrading method and device - Google Patents

System upgrading method and device Download PDF

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Publication number
CN106933604B
CN106933604B CN201511016721.2A CN201511016721A CN106933604B CN 106933604 B CN106933604 B CN 106933604B CN 201511016721 A CN201511016721 A CN 201511016721A CN 106933604 B CN106933604 B CN 106933604B
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partition
data
upgrading
operating
upgrade
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CN106933604A (en
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张胜举
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China Mobile Communications Group Co Ltd
China Mobile Suzhou Software Technology Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Suzhou Software Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00Arrangements for software engineering
    • G06F8/60Software deployment
    • G06F8/65Updates
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14Error detection or correction of the data by redundancy in operation
    • G06F11/1402Saving, restoring, recovering or retrying
    • G06F11/1446Point-in-time backing up or restoration of persistent data
    • G06F11/1458Management of the backup or restore process
    • G06F11/1469Backup restoration techniques

Abstract

The embodiment of the invention discloses a system upgrading method and a system upgrading device, wherein the system upgrading method comprises the following steps: associating the data partitions with corresponding snapshot partitions, wherein the data partitions are used for storing data, the snapshot partitions are used for storing modification information, and the modification information records the modification of the data partitions in the upgrading process of the operating system; upgrading the operating system; and if the upgrading fails, performing data recovery on the data partitions according to the modification information.

Description

System upgrading method and device
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for upgrading a system.
Background
With the continuous development of computers and communication technologies, intelligent terminals, such as smart phones, smart televisions, tablet computers and the like, are rapidly developed in terms of functions and types, and are more and more complete in application. In order to meet the requirement of the technology of continuous updating, the operating system of the intelligent terminal also needs to be updated and upgraded in time.
In order to reduce the damage of the original operating system in the upgrading process of the operating system, the existing operating system upgrading method firstly backs up the operating system and then upgrades the operating system. In this way, if the upgrade fails, the operating system may be restored to the pre-upgrade state through backup.
However, in the upgrade process of the existing operating system, the data partition may be modified, and if the upgrade of the operating system fails or the data partition is modified incorrectly due to changes in the data content and format, the data partition needs to be restored to the original state.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention desirably provide a method and an apparatus for system upgrade, which can revoke the modification of the data partition when the upgrade of the operating system fails or a data partition modification error occurs during the upgrade process, and restore the data partition to an original state, thereby improving the security of the upgrade of the operating system.
The technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a system upgrade method, including: associating the data partitions with corresponding snapshot partitions, wherein the data partitions are used for storing data, the snapshot partitions are used for storing modification information, and the modification information records the modification of the data partitions in the upgrading process of the operating system; upgrading the operating system; and if the upgrading fails, performing data recovery on the data partitions according to the modification information.
Further, associating the data partition with the corresponding snapshot partition specifically includes: the data partitions are associated with the corresponding snapshot partitions through the LVM mechanism.
Further, the operating system further includes an active partition, where the active partition is a partition where the current operating system is located, and after associating the data partition with the corresponding snapshot partition, the method further includes: and mounting the preset hidden partition corresponding to the active partition.
Further, upgrading the operating system specifically includes: installing a received upgrade image file in a hidden partition, wherein the upgrade image file comprises a system configuration file; the system configuration file is configured to the hidden partition.
Further, after upgrading the operating system, the method further includes: and if the upgrade is successful, setting the hidden partition as a new active partition, and setting the active partition as a new hidden partition.
In a second aspect, an embodiment of the present invention provides a system upgrading apparatus, including: the system comprises an association unit, an upgrade unit and a recovery unit, wherein: the system comprises an association unit, a storage unit and a processing unit, wherein the association unit is used for associating a data partition and a corresponding snapshot partition, the data partition is used for storing data, the snapshot partition is used for storing modification information, and the modification information records the modification of the data partition in the upgrading process of an operating system; the upgrading unit is used for upgrading the operating system after the association unit associates the data partition with the corresponding snapshot partition; and the recovery unit is used for recovering the data of the data partitions according to the modification information when the upgrading of the upgrading unit fails.
Further, the association unit is specifically configured to: the data partitions are associated with the corresponding snapshot partitions through the LVM mechanism.
Furthermore, the operating system further includes an active partition, where the active partition is a partition where the current operating system is located, and the system upgrading apparatus further includes a mount unit configured to mount a preset hidden partition corresponding to the active partition after the association unit associates the data partition with the corresponding snapshot partition.
Further, the upgrade unit is specifically configured to: after the association unit associates the data partition with the corresponding snapshot partition, installing the received upgrade image file in the hidden partition, wherein the upgrade image file comprises a system configuration file; the system configuration file is configured to the hidden partition.
Furthermore, the system upgrading device further comprises a setting unit, which is used for setting the hidden partition as a new active partition and setting the active partition as a new hidden partition when the upgrading unit is upgraded successfully.
The embodiment of the invention provides a system upgrading method and device, wherein a data partition and a corresponding snapshot partition are associated, wherein the data partition is used for storing data, the snapshot partition is used for storing modification information, and the modification information records the modification of the data partition in the upgrading process of an operating system; upgrading the operating system; and if the upgrading fails, performing data recovery on the data partitions according to the modification information. By adopting the technical scheme, even if the upgrading of the operating system fails, the modification of the data partition can be cancelled through the modification information, so that the data partition is restored to the original state, and the upgrading safety of the operating system is improved.
Drawings
FIG. 1 is a diagram illustrating a system memory partitioning according to an embodiment of the present invention;
fig. 2 is a first flowchart illustrating a system upgrade method according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a system upgrading method according to an embodiment of the present invention;
fig. 4 is a third schematic flowchart of a system upgrade method according to an embodiment of the present invention;
fig. 5 is a fourth schematic flowchart of a system upgrading method according to an embodiment of the present invention;
fig. 6 is a first schematic structural diagram of a system upgrade apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a system upgrade apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram three of a system upgrading apparatus according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the embodiment of the present invention, the operating system is the most basic system software running on the terminal, and includes a Linux system, a UNIX system, a Windows system, an apple (iOS, iPhone OS) system, an android system, and the like. The system memory space in the operating system is divided into two categories: system partitions and data partitions, see fig. 1.
The system partition, storing operating system and application software code and associated system configuration files, includes an active partition and a hidden partition. The active partition is the partition where the currently running operating system is located, and the hidden partition is the backup partition used to upgrade the operating system.
And the data partition stores product-related data, such as database files and the like. According to actual needs, a plurality of data partitions can be established, and each data partition is correspondingly divided into a snapshot partition for recording the modification of the data partition in the upgrading process. It should be noted that fig. 1 only illustrates the establishment of two data partitions, that is, the establishment of the first data partition and the second data partition, and the first snapshot partition and the second snapshot partition corresponding to the first data partition and the second data partition, respectively. In addition, the size of the snapshot partition may be set according to the modifier of the data partition, and thus, the size of the snapshot partition may be much smaller than the data partition.
In practical applications, the system memory space division further includes: a Boot partition (not shown in FIG. 1) that hosts a Boot program, such as a multiple operating system Boot manager (GRUB). The Boot partition comprises a kernel of an operating system and files used in a Boot process. Of course, the system memory space division further includes other partitions, and this embodiment of the present invention is not limited in this respect.
The main idea of the embodiment of the invention is as follows: when the operating system is upgraded, the corresponding snapshot partitions are respectively associated with the data partitions in the operating system, wherein the snapshot partitions are used for recording the modification process of the data partitions in the upgrading process, and the snapshot partitions can be used only when the system is upgraded. Then, when the upgrade of the operating system fails or when a data partition modification error occurs in the upgrade process, the modification of the data partition can be cancelled through the modification process of the data partition recorded in the snapshot partition, so that the rapid recovery of the data partition is realized, and the upgrade security of the operating system is further improved.
Example one
Fig. 2 is a first flowchart of a system upgrading method according to an embodiment of the present invention, where the method includes:
step 201: associating the data partitions with corresponding snapshot partitions, wherein the data partitions are used for storing data, the snapshot partitions are used for storing modification information, and the modification information records the modification of the data partitions in the upgrading process of the operating system;
it should be noted that, in the upgrading process, the data partitions need to be modified, and each data partition is associated with a corresponding snapshot partition for storing and recording modification information of the modification process of the data partition, so that the modification of the data partition can be cancelled and the data partition can be restored to the original state through the modification content recorded by the modification information.
Exemplarily, associating the data partition with the corresponding snapshot partition specifically includes: the data partitions are associated with the corresponding snapshot partitions by a Logical Volume Manager (LVM) mechanism.
The LVM mechanism is a mechanism for managing the disk partitions in the Linux system, is a logic layer established on a hard disk and partitions, and can improve the flexibility of disk partition management. And establishing a snapshot partition corresponding to the data partition through an LVM mechanism, and conveniently associating the data partition with the snapshot partition.
Preferably, the operating system further comprises an active partition, wherein the active partition is a partition in which the current operating system is located.
Further, fig. 3 is a schematic flow diagram of a system upgrading method according to an embodiment of the present invention, and referring to fig. 3, after step 201, the system upgrading method according to the embodiment of the present invention further includes: and step 200. The method specifically comprises the following steps:
step 200: and mounting the preset hidden partition corresponding to the active partition.
Understandably, the operating system is subsequently upgraded according to the received upgrade image file, and the hidden partition is a partition where the upgrade image file is installed, that is, the hidden partition is a backup partition of the upgraded operating system, so that the hidden partition needs to be mounted before upgrading so as to install the upgrade image file into the hidden partition.
It is added that the hidden partition is mounted only when the operating system is upgraded, i.e. the hidden partition is mounted to an existing directory and then the system storage device in the operating system is accessed by accessing this directory.
Step 202: upgrading the operating system;
further, step 202 specifically includes: installing a received upgrade image file in a hidden partition, wherein the upgrade image file comprises a system configuration file; the system configuration file is configured to the hidden partition.
Understandably, the upgrade image file is used to upgrade the operating system. The upgrade image file is a compressed package, and after being decompressed, the upgrade image file can obtain a file with a fixed format, for example, a software package to be upgraded, a system configuration file and some auxiliary scripts. The system configuration file comprises the version number of the upgrade image file, the version number of the supported operating system, the name of the logical volume of the hidden partition, the corresponding relation between the data partition and the snapshot partition, the name of the logical volume and the like.
It should be noted that, because the system configuration file is not purposely placed in the data partition, but placed in the system directory, for example, the Linux system places the configuration file in the standard Linux file system directory. The system configuration file is configured into the partition where the new system is located, namely the hidden partition, so that the original system configuration is reserved, the modification of the data partition in the upgrading process is also reserved, and the upgrading safety is improved.
It should be noted that, in most cases, the format of the system configuration file is not modified too much in consideration of forward compatibility of the upgraded operating system, that is, the format of the system configuration file is the same as that of the system configuration file before the upgrade, and in this case, the system configuration file only needs to be configured from the currently running system to the hidden partition. If the format of the system configuration file is changed by the upgraded operating system and the system configuration file before the upgrade cannot be identified, special processing such as format conversion and the like needs to be performed in the upgrade process to ensure that the system configuration file is reserved after the upgrade.
Step 203: and if the upgrading fails, performing data recovery on the data partitions according to the modification information.
In practical application, an error handling function is registered when an operating system executes a step in the upgrading process, wherein the error handling function is used for canceling the step, and the execution sequence of the error handling function is stack processing, namely, the execution of the error handling function is performed after registration, and the execution of the error handling function is performed after registration. Thus, recovery of the data partition by modifying the information can be achieved using the error handling function registered when this step is performed.
Exemplarily, fig. 4 is a schematic flowchart of a third method for upgrading a system according to an embodiment of the present invention, as shown in fig. 4, after step 202, the method further includes:
step 204: and if the upgrade is successful, setting the hidden partition as a new active partition, and setting the active partition as a new hidden partition.
Understandably, the hidden partition and the active partition are modified, so that the terminal is started from the partition where the new system is located, namely the new active partition, when being started next time.
In addition, after the operating system is upgraded successfully, the association between the data partition and the snapshot partition needs to be released and the system needs to be restarted, because the modification process of the data partition does not need to be recorded at this time.
Example two
Fig. 5 is a fourth schematic flowchart of a system upgrading method provided in the embodiment of the present invention, where the method includes:
step 501: receiving an upgrade image file, decompressing the upgrade image file and obtaining a system configuration file;
step 502: checking the operating system according to the system configuration file;
before the system upgrade is performed on the operating system, whether the operating system meets the basic requirements of the system upgrade needs to be detected. Specifically, it is first checked whether the version number of the operating system meets the version number of the operating system supporting the upgrade, and then it is detected whether the operating system meets a preset system storage space partition, for example, it is determined whether a hidden partition corresponding to an active partition exists in a system partition according to the logical volume name of the hidden partition in the system configuration file.
Step 503: if the operating system passes the check, mounting the preset hidden partition;
step 504: associating the data partitions with corresponding snapshot partitions, wherein the snapshot partitions are used for storing modification information, and the modification information records modification of the data partitions in the upgrading process of the operating system;
step 505: installing the upgrade image file in the hidden partition, and configuring the system configuration file to the hidden partition;
step 506: detecting the installation of the upgrade image file, and if the installation is successful, executing step 507; if the installation fails, go to step 508;
step 507: setting the hidden partition as a new active partition, and setting the active partition as a new hidden partition;
step 508: and recovering the data of the data partition according to the modification information.
Thus, when the installation of the upgrade image file is successful, the upgrade of the operating system is successful, namely, the terminal is started from the partition where the new system is located, namely, the new active partition when being started next time; and when the installation of the upgrade image file fails, the upgrade of the operating system fails, and the modification of the data partition is cancelled through the modification information, so that the data partition is restored to the original state, namely the terminal can still be started through the original operating system when being started next time.
In summary, the embodiment of the present invention provides a system upgrade method, in which a snapshot partition corresponding to a data partition is established, where the data partition is used to store data, and the snapshot partition is used to record modifications to the data partition in an upgrade process of an operating system; and upgrading the operating system, and if the upgrading fails, recovering the data partition through the snapshot partition. By adopting the technical implementation scheme, even if the upgrading of the operating system fails, the modification of the data partition can be cancelled through the snapshot partition, the data partition is restored to the original state, and the upgrading safety of the operating system is improved.
EXAMPLE III
Fig. 6 is a schematic structural diagram of a system upgrading apparatus according to an embodiment of the present invention, referring to fig. 6, the apparatus includes: an association unit 601, an upgrade unit 602, and a recovery unit 603, wherein:
the association unit 601 is configured to associate a data partition with a corresponding snapshot partition, where the data partition is used to store data, the snapshot partition is used to store modification information, and the modification information records modification of the data partition in an upgrade process of an operating system;
an upgrading unit 602, configured to upgrade the operating system after the associating unit 601 associates the data partition with the corresponding snapshot partition;
and a recovering unit 603, configured to, when the upgrade unit 602 fails to perform the upgrade, perform data recovery on the data partition according to the modification information.
Further, the association unit 601 is specifically configured to: the data partitions are associated with the corresponding snapshot partitions through the LVM mechanism.
Further, the operating system further comprises an active partition, wherein the active partition is a partition in which the current operating system is located. Fig. 7 is a schematic structural diagram of a system upgrade apparatus according to an embodiment of the present invention, and referring to fig. 7, the system upgrade apparatus further includes a mount unit 604, configured to mount a preset hidden partition corresponding to an active partition after the association unit 601 associates the data partition with the corresponding snapshot partition.
Further, the upgrading unit 602 is specifically configured to: after the association unit 601 associates the data partition with the corresponding snapshot partition, installing the received upgrade image file in the hidden partition, wherein the upgrade image file includes a system configuration file; the system configuration file is configured to the hidden partition.
Further, fig. 8 is a schematic structural diagram of a system upgrading apparatus provided in an embodiment of the present invention, and referring to fig. 8, the system upgrading apparatus further includes a setting unit 605, configured to set the hidden partition as a new active partition and set the active partition as a new hidden partition when the upgrading unit 602 is successful in upgrading.
In practical applications, the associating unit 601, the upgrading unit 602, the recovering unit 603, the mounting unit 604 and the setting unit 605 may be implemented by a processor located on a terminal, and specifically implemented by a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP) or a Field Programmable Gate Array (FPGA), and the terminal may further include a memory, where the memory may be connected to the processor through a system bus, and the memory is used to store an executable program code, where the program code includes a computer operation instruction, and the memory may include a high-speed RAM memory, and may also include a nonvolatile memory, such as at least one disk memory.
It should be noted that the system upgrading apparatus in the embodiment of the present invention is applied to an intelligent terminal with an operating system, such as a smart phone, a smart television, a tablet computer, and the like.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (8)

1. A method for system upgrade, comprising:
associating a data partition with a corresponding snapshot partition, wherein the data partition is used for storing data, the snapshot partition is used for storing modification information, and the modification information records the modification of the data partition in the upgrading process of an operating system;
upgrading the operating system;
if the upgrading fails, performing data recovery on the data partitions according to the modification information;
wherein, the upgrading the operating system specifically includes:
installing a received upgrade image file in a hidden partition, wherein the upgrade image file comprises a system configuration file; the upgrade image file is used for upgrading the operating system;
configuring the system configuration file to the hidden partition.
2. The method according to claim 1, wherein associating the data partition with the corresponding snapshot partition specifically includes:
and associating the data partition with the corresponding snapshot partition through an LVM mechanism.
3. The method of claim 1, wherein the operating system further comprises an active partition, wherein the active partition is a partition in which the current operating system is located, and wherein associating the data partition with the corresponding snapshot partition further comprises:
and mounting a preset hidden partition corresponding to the active partition.
4. The method of claim 3, further comprising, after said upgrading said operating system:
and if the upgrade is successful, setting the hidden partition as a new active partition, and setting the active partition as a new hidden partition.
5. A system upgrade apparatus, comprising: the system comprises an association unit, an upgrade unit and a recovery unit, wherein:
the association unit is used for associating a data partition with a corresponding snapshot partition, wherein the data partition is used for storing data, the snapshot partition is used for storing modification information, and the modification information records the modification of the data partition in the upgrading process of an operating system;
the upgrading unit is used for upgrading the operating system after the associated data partition and the corresponding snapshot partition are associated by the association unit;
the recovery unit is used for recovering the data of the data partitions according to the modification information when the upgrading of the upgrading unit fails;
the updating unit is specifically configured to install the received updating image file in the hidden partition after the association unit associates the data partition with the corresponding snapshot partition, where the updating image file includes a system configuration file; the upgrade image file is used for upgrading the operating system;
configuring the system configuration file to the hidden partition.
6. The apparatus according to claim 5, wherein the association unit is specifically configured to:
and associating the data partition with the corresponding snapshot partition through an LVM mechanism.
7. The apparatus according to claim 5, wherein the operating system further includes an active partition, the active partition is a partition where the current operating system is located, and the system upgrade apparatus further includes a mount unit, configured to mount a preset hidden partition corresponding to the active partition after the association unit associates the data partition with the corresponding snapshot partition.
8. The apparatus according to claim 7, wherein the system upgrade apparatus further includes a setting unit, configured to set the hidden partition as a new active partition and the active partition as a new hidden partition if the upgrade of the upgrade unit is successful.
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