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Old 10th October 2011, 08:27 PM
hemantnavarkar Offline
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linuxfedorafirefox
Fedora 15 hex editor

Hi all,
i eagly want to study different file syaems for linux.i want o undersand how data is stored in file system in linux and how it is interpreted back.so i want to know that Is Their any tool available in fedora using which i can able to see linux file system ie either EXT3 or EXT4 in Hexadecimal Format.Give me sol...
Thanks To all
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  #2  
Old 10th October 2011, 09:15 PM
pete_1967 Online
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linuxfirefox
Re: Fedora 15 hex editor

Install hex editor of your choice. Several available in repositories.
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  #3  
Old 11th October 2011, 04:34 AM
RupertPupkin Offline
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linuxfedorafirefox
Re: Fedora 15 hex editor

You could also use emacs as a hex editor if you already have that installed. Just open a binary file in emacs then do Alt-x hex-mode.
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Old 11th October 2011, 03:42 PM
lsatenstein Online
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Re: Fedora 15 hex editor

When you say file system, I presume you mean the contents of a file. If it is truly the contents of a file system, you could use the DD command to copy a partition to a sequential file, and then subsequently use hexdump or hexedit to view the contents of the partition image, which is of course, the file system.

Use a small partition that you create for this learning purpose.
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  #5  
Old 13th October 2011, 04:20 PM
hemantnavarkar Offline
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linuxfedorafirefox
Re: Fedora 15 hex editor

Thanks to all of u ......
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  #6  
Old 13th October 2011, 05:46 PM
PabloTwo Offline
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linuxfirefox
Re: Fedora 15 hex editor

Hexedit can view/edit directly from a block device as well as from a file. I just tried this and it works.
Code:
Description : Hexedit shows a file both in ASCII and in hexadecimal. The file can be a device
            : as the file is read a piece at a time. Hexedit can be used to modify the file
            : and search through it.
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  #7  
Old 18th October 2011, 03:42 AM
rmferris Offline
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Quote:
Originally Posted by RupertPupkin View Post
You could also use emacs as a hex editor if you already have that installed. Just open a binary file in emacs then do Alt-x hex-mode.
Ohhhh I don't think my fingers could handle it.
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  #8  
Old 16th February 2012, 11:45 AM
hemantnavarkar Offline
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windows_7firefox
Re: Fedora 15 hex editor

Hi all,

I have a pendrive which having FAT32 file system previously.now what i did i open the pendrive in hex editor.i found that root directory contain entries about

myfiles.and it having high order cluster byte set to some value . now i traverse the file system with corresponing cluster no. by conveting it in offset value .i found the data of my file at the corresponding offset.

Now what i do i format the pendrive . due to formatting the pendrive the high cluster byte of corresponding file in root directory set to 0,so i am unable to traverse data. of file.

is their any solution so that i can found my data...............
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