CN107656837A - A kind of system and method for realizing user partition recovery to sharing smart machine - Google Patents
A kind of system and method for realizing user partition recovery to sharing smart machine Download PDFInfo
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- CN107656837A CN107656837A CN201710888715.9A CN201710888715A CN107656837A CN 107656837 A CN107656837 A CN 107656837A CN 201710888715 A CN201710888715 A CN 201710888715A CN 107656837 A CN107656837 A CN 107656837A
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- 238000005192 partition Methods 0.000 title claims abstract description 58
- 238000011084 recovery Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012217 deletion Methods 0.000 claims 1
- 230000037430 deletion Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 4
- 101100226364 Arabidopsis thaliana EXT1 gene Proteins 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1438—Restarting or rejuvenating
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
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- General Engineering & Computer Science (AREA)
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- Library & Information Science (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
A kind of system and method for realizing user partition recovery to sharing smart machine, be advantageous to can either to remove previous utilization private data that person leaves after so as to recover user partition, and can enough retains the data that system is pre-set and is not destroyed, it can also avoid because frequently to the wafer damage or the lost of life caused by the erasing operation of user partition flash chip, and the present invention is far above traditional factory reset in terms of the speed of user data is removed.A kind of system for realizing user partition recovery to sharing smart machine, including AUFS file system, for the AUFS file system between underlying file systems and top layer Virtual File System, the top layer Virtual File System connects the underlying file systems by the AUFS file system.
Description
Technical field
The present invention relates to control or the place that the user partition in smart machine is data subregions or subscriber data file subregion
Reason technology, particularly a kind of system and method for realizing user partition recovery to sharing smart machine, is advantageous to remove
For the private data that previous utilization person leaves after so as to recover user partition, and can enough retains data that system is pre-set not
It is destroyed, additionally it is possible to avoid because frequently to the wafer damage or the lost of life caused by the erasing operation of user partition.
Background technology
Conception for sharing smart machine, the inventors discovered that, for sharing smart machine, such as shared mobile phone etc.,
Often relate to different people and successively use same smart mobile phone, and everyone the always user in mobile phone in use divides
Area leaves private data, and these private datas are simultaneously unnecessarily stayed in mobile phone, or even previous utilization person is reluctant to allow and made after
User sees or utilized that this just needs the private in user partition is removed immediately after everyone terminates using shared smart machine
Use data.At present, known recovery user partition (data subregions) technology is completed using the method for " factory reset ".
User enters system and sets interface, selects factory reset, clicks on and determines.System can reboot into reforestation practices, by data
Subregion carries out whole erasing operations, to reach the purpose of " erasing user data, recover smart machine original state ".But
Following defect or deficiency be present in this mode for recovering user partition：1. a pair whole subregion is wiped, very time-consuming；
The erasing times of 2.Flash chips are limited, frequently carry out erasing operation to flash, flash chip can be caused to damage
It is bad.
The content of the invention
The present invention is for defect or deficiency present in prior art, there is provided a kind of to realize user point to shared smart machine
The system and method that area recovers, the private data that the person that can either remove previous utilization leaves after so as to recover user partition,
And can enough retains the data that system is pre-set and is not destroyed, additionally it is possible to avoids because of the frequently wiping to user partition flash chip
Wafer damage or the lost of life caused by division operation, and the present invention is far above tradition in terms of the speed of user data is removed
Factory reset.
Technical scheme is as follows：
A kind of system for realizing that user partition recovers to sharing smart machine, it is characterised in that including AUFS file system,
Between underlying file systems and top layer Virtual File System, the top layer Virtual File System leads to the AUFS file system
Cross the AUFS file system and connect the underlying file systems.
The underlying file systems include the file system of bottom first, the file system of bottom second and bottom alternative document system
System, the file system of bottom first, the file system of bottom second and bottom alternative document system connect the AUFS texts respectively
Part system.
AUFS file system drivers are provided with the system that the shared smart machine carries.
The user partition of the shared smart machine is that former data subregions are mapped to Reading Sections or by carry to be read-only
Subregion, it is that the readable writeable subregion of data file is (therein to create a data_rw subregion in the shared smart machine
Data_rw can be write as other forms, skilled artisans appreciate that similar directory name herein as directory name
In usual English description, and it will be appreciated that similar description is the convenience or custom in order to describe, it is not unique, and
Can change), and User Catalog i.e. user_rw catalogues are established inside the data_rw subregions, the AUFS files system
The former data subregions and the user_rw catalogues are merged into new userdata subregions by system, and all write operations of user will reflect
User_rw catalogues are mapped to, when needing to realize that user partition recovers to shared smart machine, it is only necessary to by the user_rw mesh
Record is deleted, and both can guarantee that quick recovery user partition, and and can retains the content of former data subregions.
The shared smart machine is shared mobile phone.
A kind of method for realizing user partition recovery to sharing smart machine, it is characterised in that including the recovery operation stage
And initial phase, the recovery operation stage start including recovery operation；Sent to system and recover user partition instruction；System
After bottom receives or read the recovery user partition instruction, it is saved into predeterminated position or is write in the predeterminated position
Enter to recover user partition mark；System reboot enters the initial phase；The initial phase starts including initialization；
System carry AUFS file system drivers；After system start completion, according to the recovery user partition mark detected or
User_rw catalogues are deleted in the recovery user partition instruction；The user partition of the shared smart machine is former data subregions quilt
It is mapped to Reading Sections or is Reading Sections by carry, opens up or set a data_rw points in the shared smart machine
Area is the readable writeable subregion of data file, and User Catalog i.e. user_rw catalogues, institute are established inside the data_rw subregions
It is new userdata subregions to state AUFS file system the former data subregions and the user_rw catalogues are combined into carry, wherein
The former data subregions are read-only i.e. former data_ro, and the user_rw catalogues are readable writeable, and all write operations of user will
It is mapped to user_rw catalogues.
The technique effect of the present invention is as follows：The invention belongs to user partition fast recovery technique, the technology can not only be quick
Recover user partition, moreover it is possible to retain the data pre-set and app, simultaneously, moreover it is possible to which significant shadow is not caused to flash life-span
Ring.From the point of view of system perspective, file system is to carry out tissue and distribution to the space of file-storage device, is responsible for file storage simultaneously
The system that the file of deposit is protected and retrieved.
In systems, AUFS file system drivers are added.Former data subregions are mapped to Reading Sections, open up one in addition
User Catalog user_rw is established in data_rw subregions, the inside, and using AUFS file system, data and user_rw are merged into newly
Userdata subregions.Meanwhile all write operation of user will be mapped to user_rw catalogues.So, when needs recover to use
During the subregion of family, it is only necessary to delete user_rw.Both quick recovery user partition had been can guarantee that, and can retains original data points
The content in area.
Brief description of the drawings
Fig. 1 is to implement a kind of system structure diagram that user partition recovery is realized to sharing smart machine of the present invention.
Reference lists as follows：The file system of 1- bottoms first or NFS file system (NFS is NFS,
network file system)；(EXT4 is forth generation extension file system for the file system of 2- bottoms second or EXT4 file system
System, the fourth extended file system)；3- bottom alternative document systems；(AUFS is 4-AUFS file system
A kind of Union File System union file systems, are called Another UnionFS, are Alternative later
UnionFS, the i.e. advanced union file systems of Advance UnionFS are still later, some catalogues in sequence and can be weighed
Limit mount is integrated into a catalogue and showed)；(VFS is for 5- top layers Virtual File System or VFS Virtual File Systems
Virtual File System, virtual file system).
Embodiment
Below in conjunction with the accompanying drawings (Fig. 1) the present invention will be described.
Fig. 1 is to implement a kind of system structure diagram that user partition recovery is realized to sharing smart machine of the present invention.Such as
Shown in Fig. 1, by the file system such as EXT4, adding AUFS systems intermediate layer, one is carried out to the file system of bottom
Unified packaging.The file operation (VFS Virtual File Systems) of all top layers can all first pass through AUFS layers and be handled, by AUFS
Layer determines how file should be written and read operation.This ensures that all file operations can be controlled by AUFS layers
System.
The recovery operation stage includes, and when system needs to recover user partition data, can be sent to bottom and recover subregion
Instruction, bottom can write corresponding mark to a certain position, then restart system after the instruction is received.This recovering mark
It can be judged in system initialisation phase.
Initial phase includes, system carry AUFS file system drivers first, and then waiting system starts the mark terminated
Will, thereafter, then detect whether to recover the mark of user partition, if detecting the mark, delete the user_ previously mapped
RW catalogues, it is new data subregions by data and user_RW joint carries, wherein data divides then using AUFS file system
Area is ro (read-only), and user_RW is rw (readable writeable).It is all executable in each start to initialize flow.
As shown in figure 1, a kind of system for realizing user partition recovery to sharing smart machine, including AUFS file system 4,
The AUFS file system 4 is between underlying file systems and top layer Virtual File System 5, the top layer Virtual File System
5 connect the underlying file systems by the AUFS file system 4.The underlying file systems include the first file of bottom system
System 1, the second file system of bottom 2 and bottom alternative document system 3, first file system of bottom 1, the second file of bottom system
System 2 and bottom alternative document system 3 connect the AUFS file system 4 respectively.In the system that the shared smart machine carries
It is provided with AUFS file system drivers.The user partition of the shared smart machine is that former data subregions are mapped to Reading Sections
Or by carry be Reading Sections, it is that data file is readable writeable that a data_rw subregion is created in the shared smart machine
(data_rw therein can be write as other forms, skilled artisans appreciate that herein to subregion as directory name
Usual English description in similar directory name, and it will be appreciated that similar description is the convenience or custom in order to describe, its
It is not unique, but can change), and User Catalog i.e. user_rw catalogues are established inside the data_rw subregions,
The former data subregions and the user_rw catalogues are merged into new userdata subregions, Yong Husuo by the AUFS file system
Some write operations will be mapped to user_rw catalogues, when needing to realize that user partition recovers to shared smart machine, it is only necessary to will
The user_rw directory deletes, both can guarantee that quick recovery user partition, and and can retains the content of former data subregions.Institute
It is shared mobile phone to state shared smart machine.
A kind of method for realizing user partition recovery to sharing smart machine, including recovery operation stage and initialization rank
Section, the recovery operation stage start including recovery operation；Sent to system and recover user partition instruction；System bottom receives
Or after reading the recovery user partition instruction, it is saved into predeterminated position or in the predeterminated position write recovery user
Subregion sign；System reboot enters the initial phase；The initial phase starts including initialization；System carry
AUFS file system drivers；After system start completion, according to the recovery user partition mark detected or the recovery
User_rw catalogues are deleted in user partition instruction；The user partition of the shared smart machine is that former data subregions are mapped to only
Reading subregion is Reading Sections by carry, and it is that data file can that a data_rw subregion is created in the shared smart machine
Writeable subregion is read, and User Catalog i.e. user_rw catalogues are established inside the data_rw subregions, the AUFS file system
It is new userdata subregions by the former data subregions and user_rw catalogues joint carry, wherein the former data subregions
For read-only i.e. former data_ro, the user_rw catalogues are readable writeable, and all write operations of user will be mapped to user_rw mesh
Record.
It is hereby stated that described above contribute to skilled artisan understands that the invention, but not limit the present invention
The protection domain of creation.It is any that equivalent substitution described above, modification are improved without departing from the invention substantive content
And/or the implementation deleted numerous conform to the principle of simplicity and carried out, each fall within the protection domain of the invention.
Claims (6)
1. a kind of system for realizing user partition recovery to sharing smart machine, it is characterised in that including AUFS file system, institute
AUFS file system is stated between underlying file systems and top layer Virtual File System, the top layer Virtual File System passes through
The AUFS file system connects the underlying file systems.
2. the system according to claim 1 for realizing user partition recovery to sharing smart machine, it is characterised in that described
Underlying file systems include the file system of bottom first, the file system of bottom second and bottom alternative document system, the bottom
First file system, the file system of bottom second and bottom alternative document system connect the AUFS file system respectively.
3. the system according to claim 1 for realizing user partition recovery to sharing smart machine, it is characterised in that described
AUFS file system drivers are provided with the system that shared smart machine carries.
4. the system according to claim 1 for realizing user partition recovery to sharing smart machine, it is characterised in that described
The user partition of shared smart machine is that former data subregions are mapped to Reading Sections or are Reading Sections by carry, described common
The establishment readable writeable subregion of one data_rw subregion i.e. data file in smart machine is enjoyed, and inside the data_rw subregions
User Catalog i.e. user_rw catalogues are established, the AUFS file system closes the former data subregions and the user_rw catalogues
And be new userdata subregions, all write operations of user will be mapped to user_rw catalogues, real to shared smart machine when needing
During current family partition recovery, it is only necessary to by the user_rw directory deletes, both can guarantee that quick recovery user partition, again
The content of former data subregions can be retained.
5. the system according to claim 1 for realizing user partition recovery to sharing smart machine, it is characterised in that described
Shared smart machine is shared mobile phone.
A kind of 6. method for realizing that user partition recovers to sharing smart machine, it is characterised in that including the recovery operation stage and
Initial phase, the recovery operation stage start including recovery operation；Sent to system and recover user partition instruction；System bottom
After layer receives or read the recovery user partition instruction, it is saved into predeterminated position or is write in the predeterminated position
Recover user partition mark；System reboot enters the initial phase；The initial phase starts including initialization；System
System carry AUFS file system drivers；After system start completion, according to the recovery user partition mark detected or institute
State and recover user partition instruction deletion user_rw catalogues；The user partition of the shared smart machine is that former data subregions are reflected
It is mapped to Reading Sections or is Reading Sections by carry, it is data that a data_rw subregion is created in the shared smart machine
The readable writeable subregion of file, and User Catalog i.e. user_rw catalogues are established inside the data_rw subregions, the AUFS texts
It is new userdata subregions that the former data subregions and the user_rw catalogues are combined carry by part system, wherein the original
Data subregions are read-only i.e. former data_ro, and the user_rw catalogues are readable writeable, and all write operations of user will be mapped to
User_rw catalogues.
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| CN201710888715.9A CN107656837A (en) | 2017-09-27 | 2017-09-27 | A kind of system and method for realizing user partition recovery to sharing smart machine |
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Cited By (1)
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Application publication date: 20180202 |