Re: data recovery tools for debian (command line)
sorry ignore the last paragraph it was due to Email-Draft in Google.
Thanks.
On Thu, May 10, 2012 at 11:54 PM, Muhammad Yousuf Khan <sirtcp@gmail.com> wrote:
> Thanks, Ralf and all, you guys have given me a solid info to study on.
>
> Thanks
>
> On Thu, May 10, 2012 at 6:08 PM, Ralf Mardorf
> <ralf.mardorf@alice-dsl.net> wrote:
>> On Thu, 2012-05-10 at 17:32 +0500, Muhammad Yousuf Khan wrote:
>>> > For what file systems?
>>>
>>> any, ext2, 3 or 4 . just asked in general perspective. so instead of
>>> reading all the material on the net and filter out the garbage which
>>> is very time consuming. so just to make my studies time efficient and
>>> other like me also get some help as well.
>>
>> Parted Magic is a good live media to use.
>> On Parted Magic there are command line tools such as ext3grep and
>> extundelete and others.
>>
>> Mount the partition, where you deleted files as read only first. The
>> recovered data will be written to another partition. Any writing to the
>> partition with the deleted folders and files can overwrite important
>> directory entries and/or data. Note, even reading can cause a write,
>> IIRC e.g. if you don't mount with noatime, the last read access will be
>> written to a file.
>>
>> I don't have all those commands and options in mind, but take care to
>> use options that will recover the data in a human readable/usable
>> format. IOW you'll get "/my_dir/my_file_a /my_dir/my_file_b" etc. and
>> not "no_dir_cryptic_filename_a no_dir_cryptic_filename_b".
>> They also have got options to recover data that is from a special time
>> etc..
>>
>> All those tools for ext3 come with patches, they are usable for ext4,
>> theoretically. In practice 99% of your data will be lost.
>>
>> I still have 2 unmounted ext4 partitions since December 2011. I nearly
>> couldn't recover anything, but sure, I got back some data.
>
>
>
> if that is the case do you mean i should shift from ext4 to ext3.
> since i am using ext4 however there is no specific reason of using
> ext4.
>
>>
>> I experienced recovering partition tables as working 100% perfect. If
>> there are errors on a HDD I experienced fsck -fcyv, fsck -f -y etc. as
>> working properly too.
>>
>> You should read howtos. Use links e.g. given from an updated Wiki, the
>> home page of the current version of your recovery live media you're
>> using etc.. You never know if there won't be new tools or important
>> changes.
>>
>> Hth,
>> Ralf
>>
>>
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