CN106776128A - Method for ensuring normal start of Linux operating system - Google Patents
Method for ensuring normal start of Linux operating system Download PDFInfo
- Publication number
- CN106776128A CN106776128A CN201611088146.1A CN201611088146A CN106776128A CN 106776128 A CN106776128 A CN 106776128A CN 201611088146 A CN201611088146 A CN 201611088146A CN 106776128 A CN106776128 A CN 106776128A
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- initramfs
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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
- G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
-
- 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
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
Abstract
The invention discloses a method for ensuring normal startup of a Linux system, which comprises the following steps: when a hard disk is partitioned, a partition with the same size as an original root partition is created as a snapshot partition; installing a Linux operating system into the original root partition; modifying/boot original initramfs mirror image files; the step of modifying/boot the original initramfs image file specifically comprises: unpacking the original initramfs image file into a preset directory by using a gunzip command and a cpio command; adding a device-mapper software package into a preset directory; when the dmsetup command does not exist in the sub-directory of the sbin, the dmsetup command in the device-mapper software package is put into the sub-directory of the sbin; editing the init script program, modifying the code of the mount root file system of the init script program, and adding corresponding code logic; a new initramfs image file is generated to overwrite the original initramfs image file. By adopting the method, when the file system on the hard disk is damaged, the system can be automatically recovered and normally started without manual participation, and the normal starting of the operating system can be ensured.
Description
Technical field
The present invention relates to (SuSE) Linux OS field, more particularly to a kind of side for ensureing the normal startup of (SuSE) Linux OS
Method.
Background technology
At present, because MTCA platforms are widely used in environmental stability occasion not high, the whole frame of some equipment is often faced
The situation of power-off, cause certain influence can to the hard disk read and write, such as data are imperfect, file system corruption etc. is asked
Topic, especially the latter, can cause the system on board to start when serious, board thus cannot normal work.MTCA platforms
The middle board for being equipped with hard disk is mainly x86 computing boards, and due to the versatility of x86 frameworks, each producer is cost-effective, conveniently makes
From the aspect of with, rapid deployment etc., typically exclusively for its development system, but mature and stable Linux hairs will not be mounted directly
Row version, such as Redhat, CentOS, Ubuntu Server, if these systems detect the file system on hard disk on startup
System damage, conservative reparation can be taken, i.e., only when file have no fact damaged, simply file system record sheet be non-clean states
When, slight state reparation is just carried out, normally start after repairing successfully.If there is file corruption really, system is not repaiied
It is multiple, also will not normally start, but into a kind of service mode, it is necessary to user's connection display enters system, do manually
The work of Backup Data, repair system etc；The pattern is a minimum system, will not run the various soft of user's deployment
Part and service, that is to say, that board does not have normal work.At present, once there is file damage in the x86 computing boards for installing these systems
The situation that bad, system cannot start, mainly connects display repaired by hand by user, not only to the technical capability requirement of user
Height, and in MTCA application scenarios, display and skilled people and occasionally at the scene, discovery and solve problem will significantly
Delayed, the problem is larger to the harmful effect for working.
The content of the invention
It is a primary object of the present invention to provide a kind of method for ensureing the normal startup of (SuSE) Linux OS, on hard disk
File system corruption when, can still ensure that the (SuSE) Linux OS can normally start.
To achieve the above object, what the present invention was provided ensures the method that linux system normally starts, and comprises the following steps：
In fdisk, one is created with original root partition size identical subregion as snapshot subregion；The Linux operations system is installed
In system to the original root partition；Original initramfs image files in modification/boot；It is original in the modification/boot
The step of initramfs image files, specifically includes：With gunzip orders and cpio orders by the original initramfs mirror images
File is unpacked in a predetermined directories；Device-mapper software kits are added in the predetermined directories；When sbin subdirectories
In in the absence of dmsetup orders, then the dmsetup orders inside the contained device-mapper software kits are put into described
In sbin subdirectories；Editor's init shell scripts, change the code of its carry root file system, add corresponding code logic；
New initramfs image files are generated to cover the original initramfs image files.
Preferably, the original initramfs image files are a cpio files for gz format compressions.
Preferably, the original initramfs image files in the modification/boot are specifically described original modification
The init shell scripts of initramfs image files, and add dmsetup programs to sbin catalogues regarding presence or absence.
Preferably, the linux system is that Red hat, CentOS or Ubuntu Server issue edition system.
Preferably, Hard disk file system is damaged during the method for ensureing that linux system normally starts is applied to MTCA environment
Bad situation.
Preferably, the Packages is present in fixing disc.
Preferably, corresponding code logic includes：Content according to configuration file determine whether carry snapshot subregion,
Whether file system checked and repaired and whether to the merging treatment of new file.
Preferably, the new initramfs image files of the generation are literary to cover the original initramfs image files
The step of part is specifically to use cpio orders and the new initramfs image files of gzip orders generation described original to cover
Initramfs image files.
Preferably, the predetermined directories are catalogue initramfs-new, and the device-mapper software kits are specifically
Device-mapper software kits in Packages.
In the present invention, after by this method for ensureing the normal startup of linux system more than, on hard disk
During file system corruption, it is not necessary to artificial to participate in, you can automatic recovery system and normally start, it is ensured that operating system can be just
Often start.
Brief description of the drawings
Fig. 1 is the schematic flow sheet that the present invention ensures the embodiment of method one that linux system normally starts；
Fig. 2 is the idiographic flow schematic diagram of the original initramfs image files step in modification/boot in Fig. 1.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The method that linux system normally starts is ensured the invention provides a kind of, it is adaptable to fixed disk file in MTCA environment
Used in the case of system failure.Mainly use device map (device mapper) mechanism and the file system of linux system
System snapshot (snapshot) function, and linux kernel or existing program need not be changed, the file system solved on hard disk is damaged
The starting problem of operating system when bad, and the linux system includes but is not limited to Redhat, CentOS, Ubuntu Server etc.
Release.
Fig. 1 is the schematic flow sheet that the present invention ensures the embodiment of method one that linux system normally starts.Fig. 2 is in Fig. 1
The idiographic flow schematic diagram of the original initramfs image files step in modification/boot.Incorporated by reference to referring to Figures 1 and 2, it is somebody's turn to do
Ensure that the workflow of the method that linux system normally starts is as follows：
Step S10：In fdisk, one and original root partition size identical subregion is created, as snapshot subregion.
In this embodiment, the preparation of beginning：Fdisk, it is identical with operating process usually, it is unique it is noted that
To be marked off when being fdisk more one with root partition size identical subregion, behind used as snapshot subregion.
Step S20：In installation (SuSE) Linux OS to the original root partition.
In this embodiment, also operated including installing related deployment software etc..
Step S30：Original initramfs image files in modification/boot.
In above-mentioned steps, the init shell scripts in original initramfs image files are specifically changed.Wherein, it is original
Initramfs image files are a cpio files for gz format compressions.
Step S30 is comprised the following steps that：
Step S310：The original initramfs image files are unpacked to one with gunzip orders and cpio orders pre-
Determine in catalogue, the definable predetermined directories are catalogue initramfs-new；
Step S320：Institute in adding Packages (Packages may be present in fixing disc) in the predetermined directories
Software kit containing device-mapper, when in sbin subdirectories in the absence of dmsetup orders, then it is contained device-mapper is soft
Dmsetup orders inside part bag are put into sbin subdirectories.If there is dmsetup orders in working as sbin subdirectories,
Then operated without this.
Step S330：Editor's init shell scripts, change the code of its carry root file system, add corresponding code to patrol
Volume.
Wherein, the corresponding code logic：Content according to configuration file determines whether carry snapshot subregion, whether to text
Whether part system is checked and is repaired and to the merging treatment of new file.
Step S340：Cpio orders and gzip orders is used to generate new initramfs image files to cover the original
Beginning initramfs image file.
After the above method is performed, start the linux system, kernel runs amended init programs, and parse/
Boot/snapshot.cfg configuration files；Next step flow is determined according to the configuration file content after parsing, is specifically included following
3 kinds of flows：
1st kind of flow：If the configuration file content after parsing is not to enable snapshot functions, by original mode carry
Root partition, the linux system will normally start.
2nd kind of flow：If the configuration file content after parsing to enable snapshot functions, be used in combination by carry snapshot subregion
Fsck command checks whether file system is damaged, when inspection result is that then the linux system will normally start without damage.Work as inspection
To have damage then erasing snapshot subregion, again carry, repair system state returns to state when creating snapshot, the Linux to result
System will normally start.
3rd kind of flow：If the configuration file content after parsing is to merge file in snapshot subregion in root partition,
By snapshot subregion snapshot-merge type carries, kernel can automatically begin to merge after carry, use dmsetup status
Order is checked after the completion of merging, wipes snapshot subregion, and configuration file content is changed to enable snapshot, then restarts the Linux
System, after restarting, the linux system will normally start.
In the present embodiment, after by performing using the present invention normal method for starting of this guarantee linux system,
During file system corruption on hard disk, it is not necessary to artificial to participate in, you can automatic recovery system and normally start, it is ensured that operation system
System can normally start.
In addition, in other embodiments, can be according to copy-on-write (COW) skill of snapshot types in device map mechanism
Art, the write operation to new root partition part above can be written to the snapshot subregion of hard disk, and the All Files in root partition originally is not
It is impacted, that is, be protected.When starting per subsystem, if the init programs changed detect the number in snapshot subregion
According to there is damage, then snapshot subregion is wiped, again carry, system mode returns to state when creating snapshot.System BootLoader text
During part system, if carry snapshot subregion can be selected according to configuration file.Just system, service software is installed not dispose
Without carry when good, service software is waited to be reconfigured to need carry (referred to as creating snapshot) after disposing, if so file
Damage the state that can return to that a health is complete, service is good when system mode retracts.May be produced in system operation
New data file, if it is desired to incorporate the data into and protect in primitive root subregion, it is also possible to change configuration file, under
The init shell scripts that subsystem was changed when starting can automatically the Piece file mergence in snapshot subregion to primitive root subregion, Ran Houchong
It is new to create snapshot.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. it is a kind of to ensure the method that linux system normally starts, it is characterised in that the method comprises the following steps：
In fdisk, one is created with original root partition size identical subregion as snapshot subregion；
During the (SuSE) Linux OS to the original root partition is installed；
Original initramfs image files in modification/boot；
The step of original initramfs image files in the modification/boot, specifically includes：
The original initramfs image files are unpacked in a predetermined directories with gunzip orders and cpio orders；
Device-mapper software kits are added in the predetermined directories；
When in sbin subdirectories in the absence of dmsetup orders, then by inside the contained device-mapper software kits
Dmsetup orders are put into the sbin subdirectories；
Editor's init shell scripts, change the code of its carry root file system, add corresponding code logic；
New initramfs image files are generated to cover the original initramfs image files.
2. the method for claim 1, it is characterised in that the original initramfs image files are a gz forms
The cpio files of compression.
3. the method for claim 1, it is characterised in that the original initramfs image files in the modification/boot
The init shell scripts of the original initramfs image files are specifically changed, and dmsetup programs are added regarding presence or absence
To sbin catalogues.
4. the method for claim 1, it is characterised in that the linux system is Red hat, CentOS or Ubuntu
Server issues edition system.
5. the method for claim 1, it is characterised in that the method that the guarantee linux system normally starts is applied to
The situation that Hard disk file system is damaged in MTCA environment.
6. the method for claim 1, it is characterised in that the Packages is present in fixing disc.
7. the method for claim 1, it is characterised in that corresponding code logic includes：According to configuration file
Content determines whether carry snapshot subregion, whether file system checked and repaired and whether the merging to new file
Treatment.
8. the method for claim 1, it is characterised in that the new initramfs image files of the generation are to cover
The step of stating original initramfs image files file is specifically new using cpio orders and gzip orders generation
Initramfs image files are covering the original initramfs image files.
9. the method for claim 1, it is characterised in that the predetermined directories are catalogue initramfs-new, described
Device-mapper software kits are specifically the device-mapper software kits in Packages.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088146.1A CN106776128B (en) | 2016-11-29 | 2016-11-29 | Method for ensuring normal start of Linux operating system |
| PCT/CN2016/108512 WO2018098834A1 (en) | 2016-11-29 | 2016-12-05 | Method for ensuring normal booting of linux operating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611088146.1A CN106776128B (en) | 2016-11-29 | 2016-11-29 | Method for ensuring normal start of Linux operating system |
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| CN106776128A true CN106776128A (en) | 2017-05-31 |
| CN106776128B CN106776128B (en) | 2020-04-21 |
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Cited By (13)
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| CN107590272A (en) * | 2017-09-26 | 2018-01-16 | 天津麒麟信息技术有限公司 | A kind of operating system snapshot implementing method based on Overlay file system |
| CN109062576A (en) * | 2018-07-18 | 2018-12-21 | 郑州云海信息技术有限公司 | A kind of method and device for repairing file system by initramfs |
| CN111241039A (en) * | 2020-01-07 | 2020-06-05 | 天津麒麟信息技术有限公司 | File system power-off protection method, module, readable storage medium and electronic equipment |
| CN111339544A (en) * | 2019-04-24 | 2020-06-26 | 上海安路信息科技有限公司 | Offline downloading device and offline downloading method |
| CN111367854A (en) * | 2018-12-25 | 2020-07-03 | 成都鼎桥通信技术有限公司 | Construction method of multi-container root file system |
| CN112463240A (en) * | 2020-12-09 | 2021-03-09 | 成都傲梅科技有限公司 | Method for restarting to enter WinPE |
| CN112579521A (en) * | 2019-09-29 | 2021-03-30 | 北京君正集成电路股份有限公司 | File system implementation method based on equipment mapping mechanism |
| CN112579179A (en) * | 2019-09-30 | 2021-03-30 | 合肥杰发科技有限公司 | Partition mounting method of embedded system |
| CN112579256A (en) * | 2020-12-14 | 2021-03-30 | 上海英方软件股份有限公司 | Linux migration method and device |
| CN112579345A (en) * | 2019-09-29 | 2021-03-30 | 北京君正集成电路股份有限公司 | Method for realizing file system restoration based on device mapper mechanism |
| CN112783699A (en) * | 2021-02-20 | 2021-05-11 | 杭州迪普科技股份有限公司 | Method and device for starting emergency mode of community enterprise operating system |
| CN112948170A (en) * | 2019-12-10 | 2021-06-11 | 中标软件有限公司 | Method for realizing system power-down protection by using snapshot function of equipment mapping |
| CN113778536A (en) * | 2021-09-07 | 2021-12-10 | 浙江八达电子仪表有限公司时通电气分公司 | Integrated intelligent operating device embedded into Linux operating system |
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| CN109783117B (en) * | 2019-01-18 | 2023-01-10 | 中国人民解放军国防科技大学 | Mirror image file making and starting method of diskless system |
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| CN107590272B (en) * | 2017-09-26 | 2020-04-10 | 天津麒麟信息技术有限公司 | Operating system snapshot realization method based on Overlay file system |
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| CN111367854A (en) * | 2018-12-25 | 2020-07-03 | 成都鼎桥通信技术有限公司 | Construction method of multi-container root file system |
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| CN112579345A (en) * | 2019-09-29 | 2021-03-30 | 北京君正集成电路股份有限公司 | Method for realizing file system restoration based on device mapper mechanism |
| CN112579179A (en) * | 2019-09-30 | 2021-03-30 | 合肥杰发科技有限公司 | Partition mounting method of embedded system |
| CN112948170A (en) * | 2019-12-10 | 2021-06-11 | 中标软件有限公司 | Method for realizing system power-down protection by using snapshot function of equipment mapping |
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| CN111241039A (en) * | 2020-01-07 | 2020-06-05 | 天津麒麟信息技术有限公司 | File system power-off protection method, module, readable storage medium and electronic equipment |
| CN112463240A (en) * | 2020-12-09 | 2021-03-09 | 成都傲梅科技有限公司 | Method for restarting to enter WinPE |
| CN112463240B (en) * | 2020-12-09 | 2023-04-25 | 成都傲梅科技有限公司 | Method for restarting access to WinPE |
| CN112579256A (en) * | 2020-12-14 | 2021-03-30 | 上海英方软件股份有限公司 | Linux migration method and device |
| CN112579256B (en) * | 2020-12-14 | 2022-04-19 | 上海英方软件股份有限公司 | Linux migration method and device |
| CN112783699A (en) * | 2021-02-20 | 2021-05-11 | 杭州迪普科技股份有限公司 | Method and device for starting emergency mode of community enterprise operating system |
| CN113778536A (en) * | 2021-09-07 | 2021-12-10 | 浙江八达电子仪表有限公司时通电气分公司 | Integrated intelligent operating device embedded into Linux operating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106776128B (en) | 2020-04-21 |
| WO2018098834A1 (en) | 2018-06-07 |
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