Sure! Most tools would not work on a physically damaged partition, so the first thing was to get an image of the filesystem on a good device. I used ddrescue for that (The # character is not a part of the command)
# ddrescue /dev/sdc1 /mnt/new/rescued out.log it will try to get most of the data. you can also stop it and start it from the point you left it just by using the same log file. Once you have the image, its just about running the fsck to repair your file system. However my superblock got damaged which made it mandatory to use a different superblock. The real challege is to find that because its location depends on the block size. But if you have created the file system without any special options, the default will have the locations as these Primary superblock at 0, Group descriptors at 1-7 Backup superblock at 32768, Group descriptors at 32769-32775 Backup superblock at 98304, Group descriptors at 98305-98311 Backup superblock at 163840, Group descriptors at 163841-163847 Backup superblock at 229376, Group descriptors at 229377-229383 Backup superblock at 294912, Group descriptors at 294913-294919 Backup superblock at 819200, Group descriptors at 819201-819207 Backup superblock at 884736, Group descriptors at 884737-884743 Backup superblock at 1605632, Group descriptors at 1605633-1605639 Backup superblock at 2654208, Group descriptors at 2654209-2654215 Backup superblock at 4096000, Group descriptors at 4096001-4096007 Backup superblock at 7962624, Group descriptors at 7962625-7962631 Backup superblock at 11239424, Group descriptors at 11239425-11239431 Backup superblock at 20480000, Group descriptors at 20480001-20480007 Backup superblock at 23887872, Group descriptors at 23887873-23887879 You can get this list by typing the following command on a working file system with same block size. #dumpe2fs /dev/sda1 | grep superblock once you know this, its just about telling fsck to use this alternate superblock #fsck.ext3 -y -b 4096000 /mnt/new/rescued That's it. On Sun, Jan 8, 2012 at 12:55 AM, Mohit Singh <[email protected]> wrote: > congrats :) > > As you share the screen dumps at the time of stating this problem, can you > also display at least the summary of the solution process. This will help > others to solve their similar issues too. > > MS > > > > -- > Mailing list guidelines and other related articles: > http://lug-iitd.org/Footer > -- Debasish Ray Chawdhuri http://www.geekyarticles.com/ [A collection of advanced articles on java] -- Mailing list guidelines and other related articles: http://lug-iitd.org/Footer
