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使用PC-3000 Data Extractor硬盤數(shù)據(jù)恢復(fù)是發(fā)現(xiàn)數(shù)據(jù)偏移怎么辦?

本文是成都數(shù)據(jù)恢復(fù)中心關(guān)于在硬盤數(shù)據(jù)恢復(fù)時數(shù)據(jù)偏移在PC-3000 Data Extractor實用程序中的修復(fù)方法。
This article is not about?a cooperative platformer, even not about popular racing?video game. It’s about shifted data and method for fixing it in PC-3000 Data Extractor utility.

通常,您已經(jīng)修復(fù)了驅(qū)動器并獲得了訪問用戶區(qū)域的權(quán)限。
As usually you have fixed the drive and got an access to the users area.

您在數(shù)據(jù)提取器中創(chuàng)建新任務(wù),展開一個分區(qū),但該分區(qū)為空。
You create new task in the Data Extractor, expand a partition(s) but it’s empty.

如何進行? –是的,請使用“快速磁盤分析”并嘗試查找分區(qū),還檢查填充圖過程,也許某些扇區(qū)無法讀取…
How to proceed? – yes, use a?Quick disk analysis?and try to find a partitions, also check a filling map process, maybe some sectors can’t be read…

成都數(shù)據(jù)恢復(fù)中心采用的是另一種方法
But we are follow other method:

開LBA 0并像檢查分區(qū)表一樣檢查MBR
Open?LBA 0?and check?MBR?like a?Partition table

正如我們看到的,這個驅(qū)動器只有一個分區(qū),應(yīng)該從LBA 2048開始,但是這個LBA是空的
As we can see this drive have only 1 partition which is should start from?LBA 2048, but this LBA is empty:

讓我們使用RAW恢復(fù)并嘗試查找該分區(qū)的啟動:
Let’s use a RAW recovery and try to find?Boot?of this partition:

找到了引導(dǎo),但是它在LBA 2056中,所以我們可以從這個找到的引導(dǎo)中添加一個分區(qū),然后使用鼠標(biāo)右鍵添加虛擬分區(qū)
Boot
?is found but it’s in?LBA 2056, so we can add a partition from this found Boot, use right mouse button then?“Add virtual partition”:

好的,我們得到了一個完整的分區(qū),其中包含結(jié)構(gòu)和文件:
Ok, we got a full partition with structure and files inside:

我們開始讀取數(shù)據(jù)并保存文件,但是只能打開很少的文件,而其他文件則已損壞。 該怎么辦?..
We are start to read a data and save a files, but only few files can be open, but other are corrupted. What to do?..

如您所知,每個文件都有一個簽名,例如JPEG圖像在文件的第一個扇區(qū)中具有“ JFIF”或“ EXIF” ASCII文本(您可以在“ HEX”選項卡中看到):
As you know each file have a signature, for example?JPEG-images?have “JFIF” or “EXIF” ASCII text in the first sector of file (you can see it in HEX tab):

但是并不是所有的jpeg文件都有一個正確的簽名,我們在文件夾里的文件由ABA排序,看到所有的圖像(然后和所有其他文件)有一個錯誤的簽名來自大約1億lba
But not all JPEG-files have a correct signature, we are sort files in folder by ABA and see that all images (then and all other files too) have a wrong signature from approx?100 million LBAs?:

這就是文件損壞的原因。分區(qū)是展開一個文件列表,其中包含文件位置、第一個LBA和每個文件的長度等信息,但實際上這些文件的主體是垃圾數(shù)據(jù),整個用戶從一個LBA轉(zhuǎn)移到用戶區(qū)域的末尾。
That’s why files are corrupted. Partition is expand a list of files with info?about file location, first LBA and lenght of each file, but actually body of these files is garbage data and whole user are is shifted from one LBA till the end of user area. Drive can have few shifts in different places…

So, what to do?

首先需要在數(shù)據(jù)提取器中使用活動選項“創(chuàng)建虛擬翻譯器”創(chuàng)建新任務(wù):
Firstly need to create new task in Data Extractor with active option?“Create virtual?translator”:


然后將有可用的工具來手動添加班次。 創(chuàng)建任務(wù)后,需要像上面一樣擴展分區(qū),并找到一個包含JPEG圖像的文件夾(例如家庭照片檔案)。
Then will be available tools for manually adding shifts. After task creation process need to expand a partition as we did?above and find a folder with JPEG-images (for example family photo archive).

注意:對于此過程,您可以使用具有已知簽名的任何其他文件。 例如JPEG,PNG,TIFF,ZIP等。
Note: for this procedure you can use any other files with known signature. For example JPEG, PNG, TIFF, ZIP etc..

例如這個文件夾
For example this folder:

具有移位的第一個文件從111 889 848 LBA開始,如果嘗試將其打開–它將被損壞,但此文件的整個扇區(qū)映射都可以。
First file with shift start from?111 889 848 LBA, if try to open it – it will be corrupted, but whole sectors map of this file is OK.

然后,我們需要找到該文件開始的原始LBA。
Then we need to find an original LBA where this file is start.

啟動RAW恢復(fù)后退了大約一百萬個LBA。 在這種情況下,我們從111000萬LBA開始搜索,并在111945152 LBA中找到JPEG文件
Launch a RAW recovery stepped back approx 1 million?LBAs. In this case we start to search from 111 000 000 LBA and found JPEG-file at?111 945 152 LBA:

111 945 152 LBA??111 889 848 LBA?= 55 304 LBA

因此,我們得到55304是一個偏移值(扇區(qū)數(shù))。
So, we got that?55 304 is a shift value?(number of sectors).

返回分區(qū),并通過“ Shifts”工具將此值添加為該JPEG文件的shift
Return back in the partition and add this value as shift for this JPEG file by “Shifts” tool:

結(jié)果,我們修復(fù)了從該LBA到下一個偏移(如果驅(qū)動器上很少偏移)的文件的簽名。
As result we fixed signature for files from this LBA till the next shift (if there are few shifts on the drive).

因此,文件是正確的并且可以打開:
So, file is correct and can be open:

然后需要檢查從此文件到用戶區(qū)末尾的其他文件。
Then need to check a different files from?this file till end of user area.

查看文件夾并檢查從當(dāng)前LBA到結(jié)束的每個文件中的簽名,嘗試查找有問題的文件(文件的第一個LBA中有錯誤),找到原始的第一個LBA并添加一個移位點。
Take a look in folders and check a signatures in each file from current LBA till the end, try to find a problem file (with garbage inside first LBA of file), find an original first LBA and add a shift point.

因此,該方法允許修復(fù)一個移位問題,并保存一個具有正確數(shù)據(jù)的文件。
As result this method allow to fix a shift problems and?save a file with correct data.

因此,這里是當(dāng)前任務(wù)中的轉(zhuǎn)換列表
So, here is a list of shifts in the current task:

As you can see – shift happens. Be patinet and good luck!

轉(zhuǎn)載請注明:成都千喜數(shù)據(jù)恢復(fù)中心 » 使用PC-3000 Data Extractor硬盤數(shù)據(jù)恢復(fù)是發(fā)現(xiàn)數(shù)據(jù)偏移怎么辦?

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