Partition data recovery ubuntu13.10 format the entire hard disk

After four days of hard work, Zookeeper finally achieved almost the same result and reduced its losses to the lowest possible level. In this case, I should have lost data due to two major mistakes. The first time I deleted 10 Gb of data because I changed my computer, I found it only after one week. The second time I chose to overwrite the data because of an incorrect system installation, the entire windows system, including hard disk partitions, is overwritten and modified by ububtu. In general, we were lucky to find the data twice, but the system installed on the virtual machine in the data we found for the second time went down. I don't know what the problem is. In short,Data is very valuable, and backup needs to be noted. After these two attempts, I decided to reuse the cloud disk. I never dared to use it before, because I thought it was not very safe. But then I thought about it. In fact, I didn't have anything very confidential, if it is really important, do not upload, but you can only have multiple backups.
Here are some points for data recovery:1,When data loss occurs, remember not to write data to the hard disk, so that the loss can be minimized;2,Do not rush to seek data recovery. Sometimes you can use free or cracked software to recover the data. It is very easy, that is, it takes some time;3,It is important to identify the types of data loss and find the corresponding software for data recovery. Selecting the right software can save a lot of time;4,Don't draw conclusions too early. there will be additional gains when you try multiple times. It is not ruled out that data recovery is more effective for data recovery companies, but for general data loss, see the data recovery software to achieve good results;5,More Baidu and Google, find other people's practical experience, one to cheer yourself up, two to learn from.
Next, let's describe my experience in detail.First data loss:
During the first data loss, I accidentally lost about 10 Gb of data during data migration because I changed my computer. I did not find the data after the first time, and then I found it a few days later. At that time, I thought I couldn't find the data, but it was a pity that I had accumulated the data in recent years. So I tried it. After all, this is the first time I lost such a large amount of data. I deleted some small documents by mistake, and I can find them in the recycle bin or use the file recovery software that comes with 360. First, I found the most popular websites on the Internet.EasyRecoveryI downloaded the cracked version of this software, but his performance was not satisfactory to me. Maybe it was because he was a cracked version. It took a lot of time to search for the disk, after several hours, I finally finished the analysis. The results were all scattered files, but I didn't find the data I wanted. Finally, I collapsed when I recovered the data, I almost ran into tears. So I searched the internet and foundFinalDataThis software is a green cracked version. I used it to scan the disk. It also took a lot of time. Remember it for more than an hour and finally found my lost data, fortunately, it was not covered by me over the past few days. I copied the data to another partition system using this software to avoid overwriting the data I accidentally deleted. Don't think it won't be overwritten if it is found, so copying to another partition is very conservative. Later, I switched to the ububtu system and saw a folder under the drive letter that originally saved my accidentally deleted data. It was hidden in windows and access was denied, the specific name is missing because it takes too long. It seems to be $ RECYCLE. BI folder, and then enter this folder (there is no such restriction in ubuntu), you can see the files you recently deleted. Then, if you want to restore your data, it's easy to copy the data in the folder to the outside of the folder.


Second data loss:This time, the data loss was serious. This time, it was due to the incorrect selection of the reinstallation system. After the dual-System Windows 7 boot Ubuntu, it was found that ubuntu could not be entered. The user password was wrong. For the first time, I thought I forgot it, then I re-modified the password and went in again or wrong. Finally, I used to reinstall the ubuntu system. When I reinstall ubuntu, I chose to overwrite the original ubuntu and went to bed. As a result, I woke up the next day and saw that the system was installed, however, the four windows partitions (NTFS format) and the three partitions (ext4) in ubuntu are missing in the ubuntu CD system, and there is only one large partition left on the hard disk. So I quickly popped up the disc and re-entered the system, but found that the system could not be accessed, prompting that there was no system, because I set windows to boot ububtu, so mbr was windows, and now I cannot enter the system, this indicates that windows has been deleted. Okay, I used boost repair to fix it, and I cannot detect the disk. At that time, my scalp was numb. I guess it was formatted. What greeted me should be a difficult road to data recovery. Of course, if the system cannot go in, the first thing to solve is how to view the disk and determine the specific situation. So I found one of my classmates and borrowed his computer (his computer is also dual-system, xubuntu and windows7 ). Because the data in the disk is very important to me, but I am very upset and depressed, so I didn't take the time to look for others' experience on the Internet, the first thing I think of is of course the two software I used when I lost data before, easyrecovery and finaldata. So I ran to him and downloaded the two software. I used finaldata to scan my disk if I didn't want to. It took about three or four hours to scan the disk, the scan results show some scattered folders, and nothing in the folder is my lost data. I am very disappointed because his previous good performance gave me high hopes for him, the result is nothing. Then I went on to use the easyrecovery software for recovery. It also took three or four hours to scan the entire disk, and the final results were all scattered files, which were not ideal. At this time, I began to look for other software. I think the disk is formatted by the ubuntu system. It may be better to find the software in linux. So with the help of Baidu Google, I found the data recovery software under ubuntu,TestDisk,PhotoRecAndSafecopyAfter learning how to use them, I started to use them for data recovery. testdisk does not analyze the disk for a long time (relative to the previous two software). Finally, I found the NTFS partition in two windows systems, but I hesitated when deciding whether to recover. Because the software in ububtu has no interface and does not see the visual results of their detection, I am not at ease. In addition, it has been almost a day since then, after trying and failing this day, I want to get a data recovery store and find a professional to restore it, the price on the Internet is still within the acceptable range (100-300 ). In the end, I didn't have a site to restore the partition. I thought that after the professional data recovery staff looked at it the next day, if the price was not correct, they would be able to crack the tank. In this way, one day has passed. In the evening, I went back to the dormitory and thought about how to find a professional to recover the data. Then I finally calmed down and began to think about things I didn't think about when I was very upset during the day. So I went on to use the ubuntu CD system to access the Internet and search for relevant information. I entered keywords such as "data recovery" and "partition Repair" and started to find related software, after seeing a piece of software, go to Baidu encyclopedia or Wikipedia to see what types of data recovery, partition repair, and whether the detection process will write data to the disk (generally not ), other cases used are similar to me. If the NTFS, FAT, and ext formats are supported, all software in the ext format is rejected. During this period, I also found a buddy who asked questions on Baidu. His situation is basically the same as mine. As a result, he used DiskGenius to restore all the data, this also increases my confidence in data retrieval. Finally, I selected two software, one of which wasDiskGeniusProfessional crack version, another one isData‑e. However, the latter has not cracked the version. This was discovered only after scanning the results, but he has the advantage of saving the scan results and not scanning them again, directly analyze the results. However, DiskGenius is also very powerful. All my data is recovered by him, and his scan time is not very long. If the scan results are returned, you can also copy the software immediately, that is, the software will be locked during the copy process, and you cannot continue to perform any operations, but the scan continues. Because this data recovery is not performed on your computer, and you are not interested in the mood at that time, there is basically no picture. On the third day, I checked the scan results again to make sure that all the copies were copied. After I used DiskGenius to restore the disk partition, the result shows a complete partition. The other three partitions are damaged to varying degrees. On the fourth day, I reinstalled the system and finally returned to the steady state. This experience really gave me a new posture. I think about this data recovery because I didn't think about it myself, so I had to work hard with my previous experience, which would waste a day. If I wanted to find the corresponding software for restoration at the beginning, maybe we can retrieve all the data in less than two days. Finally, let's summarize the data recovery: 1. Do not install software intelligently; 2. Do not forget to put your head on critical moments; 3. believe in the power of the Internet.


Reference: the best data recovery tool on Linux: http://www.geekfan.net/1300/