On Wed, Mar 28, 2012 at 06:26:40PM -0400, Greg Freemyer wrote:

On Wed, Mar 28, 2012 at 6:18 PM, Greg KH wrote:

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On Wed, Mar 28, 2012 at 06:09:03PM -0400, Greg Freemyer wrote:

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All,

ext4magic has recently been accepted into factory.

https://build.opensuse.org/package/show?package=ext4magic&project=openSUSE%3AFactory

Nice, want me to add it to Tumbleweed?

That would be great. I can see users needing it.

Now added. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

On Thu, Mar 29, 2012 at 1:12 AM, Thomas Taylor wrote:

On Wed, 28 Mar 2012 18:09:03 -0400 Greg Freemyer wrote:

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All,

ext4magic has recently been accepted into factory.

https://build.opensuse.org/package/show?package=ext4magic&project=openSUSE%3AFactory

It is a data recovery tool for ext4 filesystems.  The license is GPL-2.0+

It is meant to be used against unmounted filesystems.

Per the author: === For me, the program and its functions completed tested and stable up to 16TByte filesystem size. 64Bit file systems are not implemented.

Not tested at the moment: - the new library releases form last 2 Weeks libmagic and libext2fs - file systems written with new Kernel (only testet written with 2.6 Kernel) - BigEndian CPUs not testet very extensively ===

I think opensuse is the first distro to have this tool in it.

This is part of my effort to bring DFIR (digital forensic / incident response) apps to factory.  This is likely one of the few that will have broad appeal to users.

Greg

Is there an anticipated date for implementing a 64 bit system?

Tom

Tom, straight from the author with me tweaking the english (and my comments in parenthesis): == Maybe just a misunderstanding 64bit Linux works fine. Not working is 64Bit filesystems, ie ext4 filesystems greater than 16TB. (The decision of 32-bit vs 64-bit is made by mkfs.ext4 at mkfs time and has nothing to do with the kernel.) The default journal size is only 128 MByte for a file system > 16TByte. Thus ext4magic would find very few inode copies to work with on such a large file system. Such a large file system only with very large files, this makes sense. (ie. ext4magic in theory could help with a 16TB+ filesystem if the number of files was relatively low). But such a large file system with more than 500,000 files and this small journal size? For ext4magic, good results will not be achieved. Possibly, the development of the true 64-bit mode for ext4magic is wasting time. It would required lots of code changes? and testing would be extremely time consuming and difficult. At the moment it's not planned to insert the 64 Bit filesystem support to ext4magic. == Greg -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org