TWI410867B - Method for installing application software - Google Patents
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Description
本發明是有關於一種應用軟體的處理方法，且特別是有關於一種應用軟體的安裝方法。The present invention relates to a method of processing an application software, and more particularly to an installation method of an application software.
眾所皆知地，作業系統是一管理電腦硬體與軟體資源的程式，同時也是電腦裝置的核心。作業系統身負諸如管理與配置網路與管理檔案系統等基本事務，並且也提供一個讓使用者與系統互動的操作介面。為了符合日常工作或娛樂的需要，使用者往往會在作業系統中安裝各式各樣的應用軟體，如文書處理軟體、遊戲等等。此外，當系統或是應用軟體有漏洞或臭蟲被發現時，使用者也需透過修補(patch)檔或是新版本的安裝來改善。As is well known, the operating system is a program that manages computer hardware and software resources, and is also the core of computer devices. The operating system is responsible for basic tasks such as managing and configuring the network and managing the file system, and also provides an operational interface for the user to interact with the system. In order to meet the needs of daily work or entertainment, users often install a variety of application software, such as word processing software, games, etc. in the operating system. In addition, when there are loopholes or bugs in the system or application software, the user needs to improve by patching or installing a new version.
然而，為了安全性或是其他的考量，有部分的作業系統會採用唯讀(read-only)檔案系統(file system)，而不允許使用者對系統安裝額外的應用軟體或進行系統的更新。在這樣的作業系統中，當使用者希望更新系統時，往往只能透過下載整份的映像(image)檔來覆寫原來的作業系統，相當不方便。此外，雖然使用者可下載一些可攜式版本(portable version)的應用軟體到隨身碟中來使用，但並非所有應用軟體都提供有可攜式的版本，所以亦無法完全滿足使用者的需求。However, for security or other considerations, some operating systems use a read-only file system, and do not allow users to install additional application software or system updates to the system. In such an operating system, when the user wishes to update the system, it is often inconvenient to overwrite the original operating system by downloading the entire image file. In addition, although users can download some portable versions of the application software to the flash drive, not all application software provides a portable version, so it can not fully meet the needs of users.
本發明提供一種應用軟體的安裝方法，能夠以一般安裝方法安裝應用軟體到唯讀檔案系統架構的作業系統中。The invention provides a method for installing an application software, which can install an application software into an operating system of a read-only file system architecture in a general installation method.
本發明提出一種應用軟體的安裝方法，適用於一主機。主機包括具有一唯讀檔案系統的一內接儲存裝置。應用軟體的安裝方法，包括下列步驟。首先，連接主機至一外接儲存裝置。外接儲存裝置具有一可讀寫檔案系統。接著，判斷外接儲存裝置是否具有一識別資料。當外接儲存裝置具有識別資料時，根據一合併策略，決定內接儲存裝置優先讀取或是外接儲存裝置優先讀取，以合併唯讀檔案系統與可讀寫檔案系統為一虛擬檔案系統，其中若決定內接儲存裝置優先讀取，則以唯讀檔案系統為主進行目錄的合併，若決定外接儲存裝置優先讀取，則以可讀寫檔案系統為主進行目錄的合併。並且，掛載合併的目錄至唯讀檔案系統的根目錄。之後，依據一安裝指令，安裝一應用軟體至虛擬檔案系統。The invention provides a method for installing an application software, which is suitable for a host. The host includes an internal storage device having a read-only file system. The installation method of the application software includes the following steps. First, connect the host to an external storage device. The external storage device has a readable and writable file system. Next, it is determined whether the external storage device has an identification data. When the external storage device has the identification data, according to a merge strategy, the internal storage device is preferentially read or the external storage device is preferentially read to merge the read-only file system and the readable and writable file system into a virtual file system, wherein If it is decided that the internal storage device is preferentially read, the directory is merged mainly by the read-only file system, and if the external storage device is determined to be preferentially read, the directory is merged mainly by the readable and writable file system. Also, mount the merged directory to the root directory of the read-only file system. Then, according to an installation instruction, an application software is installed to the virtual file system.
在本發明之一實施例中，在根據合併策略決定內接儲存裝置優先讀取或是外接儲存裝置優先讀取的步驟之前，應用軟體安裝方法更包括下列步驟。接受一使用者指令，以指定合併策略。In an embodiment of the present invention, before the step of determining whether the in-line storage device preferentially reads or the external storage device preferentially reads according to the merge policy, the application software installation method further includes the following steps. Accept a user command to specify a merge strategy.
在本發明之一實施例中，應用軟體的安裝方法更包括下列步驟。首先，接收一讀取指令，以讀取一指定目錄的一檔案。接著，判斷指定目錄與檔案是否同時存在於唯讀檔案系統與可讀寫檔案系統。當指定目錄與檔案同時存在 於唯讀檔案系統與可讀寫檔案系統時，根據合併策略決定自唯讀檔案系統或可讀寫檔案系統讀取檔案。In an embodiment of the present invention, the installation method of the application software further includes the following steps. First, a read command is received to read a file of a specified directory. Next, it is determined whether the specified directory and the file exist in both the read-only file system and the readable and writable file system. When the specified directory exists with the file When reading the file system and the readable and writable file system, the file is read from the read-only file system or the readable and writable file system according to the merge strategy.
在本發明之一實施例中，在合併唯讀檔案系統與可讀寫檔案系統為虛擬檔案系統的步驟之前，應用軟體的安裝方法更包括下列步驟。分別掛載唯讀檔案系統與可讀寫檔案系統的根目錄至一原始根目錄與一延伸根目錄，以利用原始根目錄與延伸根目錄進行合併。In an embodiment of the present invention, before the step of combining the read-only file system and the readable and writable file system into a virtual file system, the installation method of the application software further includes the following steps. The root directory of the read-only file system and the readable and writable file system are respectively mounted to an original root directory and an extended root directory to merge the original root directory with the extended root directory.
在本發明之一實施例中，識別資料為一特定檔案或是一特定標籤名稱。In an embodiment of the invention, the identification material is a specific file or a specific tag name.
基於上述，本發明藉由將內接儲存裝置的唯讀檔案系統與外接儲存裝置的可讀寫檔案系統合併為一個虛擬檔案系統，而可對受限的系統進行應用軟體的安裝，相當方便。Based on the above, the present invention can be used to install the application software of the limited system by combining the read-only file system of the internal storage device and the readable and writable file system of the external storage device into one virtual file system.
為讓本發明之上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the present invention will be more apparent from the following description.
圖1為本發明一實施例之主機連接到外接儲存裝置的示意圖。請參考圖1，主機100包括一內接儲存裝置110，且適於連接至一外接儲存裝置50。內接儲存裝置110具有一唯讀檔案系統。外接儲存裝置50則具有一可讀寫檔案系統。在本實施例中，內接儲存裝置110例如為一硬碟，且可存放一作業系統，而外接儲存裝置50則可為萬用序列匯流排(USB)介面的隨身碟，但皆不以此為限。FIG. 1 is a schematic diagram of a host connected to an external storage device according to an embodiment of the invention. Referring to FIG. 1, the host 100 includes an internal storage device 110 and is adapted to be coupled to an external storage device 50. The internal storage device 110 has a read-only file system. The external storage device 50 has a readable and writable file system. In this embodiment, the internal storage device 110 is, for example, a hard disk and can store an operating system, and the external storage device 50 can be a universal serial bus (USB) interface, but not Limited.
圖2為應用於圖1之主機的應用軟體的安裝方法的流 程圖。請參考圖1與圖2，首先進行步驟S110，連接主機100至外接儲存裝置50。此時，主機100接收到一熱插拔(hotplug)訊號，且完成外接儲存裝置50的安裝。接著進行步驟S120，判斷外接儲存裝置50是否具有一識別資料。主機100可根據識別資料來決定是否要對外接儲存裝置50與內接儲存裝置110進行合併。在本實施例中，識別資料為一特定檔案或是一特定標籤名稱(label name)。以特定檔案為例來說，特定檔案可存放在一預設目錄下，若是主機100讀到預設目錄下有特定檔案存在，即判斷外接儲存裝置50具有識別資料。2 is a flow of an installation method of an application software applied to the host of FIG. 1. Cheng Tu. Referring to FIG. 1 and FIG. 2, step S110 is first performed to connect the host 100 to the external storage device 50. At this time, the host 100 receives a hotplug signal and completes the installation of the external storage device 50. Next, proceeding to step S120, it is determined whether the external storage device 50 has an identification data. The host 100 can determine whether to merge the external storage device 50 with the internal storage device 110 according to the identification data. In this embodiment, the identification material is a specific file or a specific label name. For example, the specific file can be stored in a preset directory. If the host 100 reads a specific file in the preset directory, it is determined that the external storage device 50 has the identification data.
當外接儲存裝置50具有識別資料時，進行步驟S130，合併唯讀檔案系統與可讀寫檔案系統為一虛擬檔案系統。此時，對使用者來說，會只看到虛擬檔案系統的檔案結構。之後進行步驟S140，依據一安裝指令，安裝一應用軟體至虛擬檔案系統。也就是說，使用者可執行安裝指令來安裝所下載的應用軟體到虛擬檔案系統中，而與一般安裝應用軟體的方式無異。When the external storage device 50 has the identification data, step S130 is performed to merge the read-only file system and the readable and writable file system into a virtual file system. At this point, for the user, only the file structure of the virtual file system will be seen. Then, in step S140, an application software is installed to the virtual file system according to an installation instruction. That is to say, the user can execute the installation instruction to install the downloaded application software into the virtual file system, which is the same as the general installation of the application software.
值得一提的是，即使內接儲存裝置110的檔案系統是唯讀的，使用者亦可透過一般的軟體安裝方法進行安裝，也不需麻煩地去找可攜版本，相當方便。此外，當不想用新安裝的應用軟體時，只要移除外接式儲存裝置50，系統即回復成原來的狀態，等到想用新安裝的應用軟體時再連接外接式儲存裝置50即可。It is worth mentioning that even if the file system of the internal storage device 110 is read-only, the user can install through the general software installation method, and it is quite convenient to find the portable version without trouble. In addition, when the newly installed application software is not desired, as long as the external storage device 50 is removed, the system returns to the original state, and the external storage device 50 can be connected when it is desired to use the newly installed application software.
圖3為本發明另一實施例之應用軟體的安裝方法的流 程圖。為了方便說明，以下將配合圖1來說明圖3的流程圖。首先進行步驟S210，連接主機100至外接儲存裝置50。接著進行步驟S220，判斷外接儲存裝置50是否具有識別資料。當外接儲存裝置50不具有識別資料時，進行步驟S230，掛載可讀寫檔案系統為一標準(normal)的檔案系統。當外接儲存裝置50具有識別資料時，進行步驟S240，分別掛載唯讀檔案系統與可讀寫檔案系統的根目錄至一原始根目錄與一延伸根目錄。3 is a flow chart of an installation method of an application software according to another embodiment of the present invention; Cheng Tu. For convenience of explanation, the flowchart of FIG. 3 will be described below with reference to FIG. 1. First, step S210 is performed to connect the host 100 to the external storage device 50. Next, proceeding to step S220, it is determined whether the external storage device 50 has identification data. When the external storage device 50 does not have the identification data, step S230 is performed to mount the readable and writable file system as a normal file system. When the external storage device 50 has the identification data, step S240 is performed to respectively mount the root directory of the read-only file system and the readable and writable file system to an original root directory and an extended root directory.
接著進行步驟S250，接受一使用者指令，以指定一合併策略。然後進行步驟S260，根據合併策略，決定內接儲存裝置110優先讀取或是外接儲存裝置50優先讀取。雖然本實施例的合併策略是由使用者所指定，但在另一未繪示的實施例中，合併策略亦可預先設定為內接儲存裝置110優先讀取或是外接儲存裝置50優先讀取，並不以此為限。Then proceeding to step S250, accepting a user instruction to specify a merge policy. Then, step S260 is performed to determine whether the in-line storage device 110 preferentially reads or the external storage device 50 preferentially reads according to the merge policy. Although the merging policy of the embodiment is specified by the user, in another embodiment not shown, the merging policy may be preset to read preferentially by the internal storage device 110 or preferentially read by the external storage device 50. Not limited to this.
之後進行步驟S270，合併唯讀檔案系統與可讀寫檔案系統為一虛擬檔案系統。在本實施例中，步驟S270可包括子步驟S272~S278。首先進行步驟S272，判斷內接儲存裝置110是否優先讀取。若判斷外接儲存裝置50優先讀取的話，進行步驟S274，以可讀寫檔案系統為主進行目錄的合併。但若判斷內接儲存裝置110優先讀取的話，進行步驟S276，以唯讀檔案系統為主進行目錄的合併。之後進行步驟S278，掛載合併的目錄至唯讀檔案系統的根目錄。在完成步驟270之後，即可進行步驟S280，依據一安裝指令，安裝一應用軟體至虛擬檔案系統。Then, step S270 is performed to merge the read-only file system and the readable and writable file system into a virtual file system. In this embodiment, step S270 may include sub-steps S272-S278. First, step S272 is performed to determine whether the in-line storage device 110 preferentially reads. If it is determined that the external storage device 50 reads preferentially, the process proceeds to step S274, and the directory is merged mainly by the readable and writable file system. However, if it is determined that the in-line storage device 110 preferentially reads, step S276 is performed, and the directory is merged mainly by the read-only file system. Then, in step S278, the merged directory is mounted to the root directory of the read-only file system. After step 270 is completed, step S280 can be performed to install an application software to the virtual file system according to an installation instruction.
圖4為自圖2之應用軟體的安裝方法所延伸出的讀寫虛擬檔案系統的流程圖。請參考圖4，首先進行步驟S310，讀/寫虛擬檔案系統。接著進行步驟S320，判斷是否讀取一檔案。若否，進行步驟S330，接收一寫入指令，以寫入檔案至可讀寫檔案系統。若是，進行步驟S340，接收一讀取指令，以讀取一指定目錄的一檔案。然後進行步驟S350，判斷指定目錄與檔案是否同時存在於唯讀檔案系統與可讀寫檔案系統。若否，進行步驟S360，根據檔案的存在位置，自唯讀檔案系統或可讀寫檔案系統進行檔案讀取。若是，進行步驟S370，根據合併策略決定自唯讀檔案系統或可讀寫檔案系統讀取檔案。接著進行步驟S380，根據合併策略，判斷是否優先讀取內接儲存裝置110。若否，進行步驟S390，自可讀寫檔案系統讀取檔案。若是，進行步驟S400，自唯讀檔案系統讀取檔案。4 is a flow chart of the read-write virtual file system extended from the installation method of the application software of FIG. 2. Referring to FIG. 4, step S310 is first performed to read/write the virtual file system. Next, proceeding to step S320, it is determined whether a file is read. If not, proceed to step S330 to receive a write command to write the file to the readable and writable file system. If so, step S340 is performed to receive a read command to read a file of a specified directory. Then, in step S350, it is determined whether the specified directory and the file exist in both the read-only file system and the readable and writable file system. If not, proceed to step S360 to read the file from the read-only file system or the readable and writable file system according to the existence location of the file. If yes, proceeding to step S370, the file is read from the read-only file system or the readable and writable file system according to the merge policy. Next, proceeding to step S380, it is determined whether the in-line storage device 110 is preferentially read according to the merge policy. If not, proceed to step S390 to read the file from the readable and writable file system. If yes, proceed to step S400 to read the file from the read-only file system.
進一步來說，藉由合併策略的選擇，可改變內接儲存裝置110與外接儲存裝置50的讀取順序，而會產生不同的效果。若是設定內接儲存裝置110優先讀取的話，原來的系統不會有影響，使得系統較為穩定且安全。相對的，內接儲存裝置110中存在的檔案則無法升級(upgrade)；但若是設定外接儲存裝置50優先讀取的話，可讓系統更加有彈性，使得使用者可以覆寫內接儲存裝置110的檔案。例如，可對內接儲存裝置110之系統中的軟體進行版本升級。相對的，覆寫內接儲存裝置110的檔案也可能造成系統較不穩定。Further, by the selection of the merge strategy, the reading order of the internal storage device 110 and the external storage device 50 can be changed, and different effects can be produced. If the internal storage device 110 is set to read preferentially, the original system will not be affected, making the system more stable and safe. In contrast, the files existing in the internal storage device 110 cannot be upgraded; however, if the external storage device 50 is preferentially read, the system can be made more flexible, so that the user can overwrite the internal storage device 110. file. For example, the software in the system of the internal storage device 110 can be upgraded. In contrast, overwriting the file of the internal storage device 110 may also cause the system to be unstable.
藉此，使用者可根據使用的情境來決定合併策略，而可讓系統兼具程式的安裝彈性與系統穩定度。In this way, the user can decide the merge strategy according to the situation used, and the system can have both the installation flexibility and the system stability of the program.
綜上所述，本發明藉由將內接儲存裝置的唯讀檔案系統與外接儲存裝置的可讀寫檔案系統合併為一個虛擬檔案系統，而可對受限的系統進行應用軟體的安裝。如此一來，使用者不但不須下載特殊版本的應用軟體，亦無須透過映像檔覆寫系統來升級系統，相當方便。In summary, the present invention can install the application software for the limited system by combining the read-only file system of the internal storage device and the readable and writable file system of the external storage device into one virtual file system. In this way, the user does not have to download a special version of the application software, and does not need to upgrade the system through the image file overwriting system, which is quite convenient.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，故本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
50‧‧‧外接儲存裝置50‧‧‧External storage device
100‧‧‧主機100‧‧‧Host
110‧‧‧內接儲存裝置110‧‧‧Inside storage device
S110~S140、S210~S280、S310~S400‧‧‧步驟S110~S140, S210~S280, S310~S400‧‧‧ steps
圖1為本發明一實施例之主機連接到外接儲存裝置的示意圖。FIG. 1 is a schematic diagram of a host connected to an external storage device according to an embodiment of the invention.
圖2為應用於圖1之主機的應用軟體的安裝方法的流程圖。2 is a flow chart of a method of installing an application software applied to the host of FIG. 1.
圖3為本發明另一實施例之應用軟體的安裝方法的流程圖。FIG. 3 is a flowchart of a method for installing an application software according to another embodiment of the present invention.
圖4為自圖2之應用軟體的安裝方法所延伸出的讀寫虛擬檔案系統的流程圖。4 is a flow chart of the read-write virtual file system extended from the installation method of the application software of FIG. 2.
S110~S140‧‧‧步驟S110~S140‧‧‧Steps
Claims (5)
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| TW099108770A TWI410867B (en) | 2010-03-24 | 2010-03-24 | Method for installing application software |
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| TW099108770A TWI410867B (en) | 2010-03-24 | 2010-03-24 | Method for installing application software |
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| TWI410867B true TWI410867B (en) | 2013-10-01 |
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| TWI456488B (en) * | 2012-09-10 | 2014-10-11 | Univ Nan Kai Technology | Data maintenance system for portability program and method thereof |
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