Re: [Bug-ddrescue] DDRescue me... please..

[Tom]

this might help also



http://www.forensicswiki.org/wiki/Ddrescue

On Thu, Jun 25, 2009 at 4:43 PM, Tom <address@hidden> wrote:

There are several ways you could proceed.  Basically you need to create a copy of the bad disk bit by bit onto a good disk, preferably a new one.  To achive this you need the bad disk and the good disk connected to the same machine, which can be as simple as plugging them into spare slots on a desktop machine or by using a sata usb cable like the one here http://www.pccasegear.com/index.php?main_page=product_info&products_id=8423.  I would strongly suggest removing any other disks from that machine so there is no way possible to overwrite anything you want.   When you have them connected you boot this machine off a program like systemrescuecd   http://www.sysresccd.org/Main_Page  that runs from a cd drive or usb flash disk.  From there you would use ddrescue from the command line to copy as much of the bad disk as possible to the good disk so you can do data recovery on the good disk.  It is important not to work the bad disk any more than necessary it as it might fail completely at any time.  The new disk must be as big or larger than the bad one and you use a command like     fdisk -l    to find the path, which will be something like     /dev/sda    and    /dev/sdb   .  


I dont know if system rescue cd will work with a fire wire connection. 

You dont need to mount either bad or good disks for ddrescue to work so dont worry about it, but do take my advice and physically remove any other disks from the machine before you begin.


Tom 

On Thu, Jun 25, 2009 at 3:59 PM, mufngruf <address@hidden> wrote:

Please forgive me if this is a resend... I'm new to this system - duh!

I have an intel imac which does basic stuff, cos that's mostly what I need.
I have an old ibook which has lots of family stuff on it and the small drive
seems to have become suddenly corrupted.. "the volume could not be repaired
- underlying task reported failure on exit" and that sort of thing. Disk
warrior, or disk utility cannot rebuild/repair the thing. I can get it to
start up with the installation disk in the drive but it will not install a
new system on the existing volume unless I reformat the drive - and lose all
the data.
I can firewire target the disc and it shows up on the imac but I cannot drag
any files across... it just seizes up both machines when I try. I don't
think there's a "mount point" - whatever that is..
I do not understand even the most basic command line instructions... which
is why, after all the other newbies got their questions answered, I STILL
can't figure it out.
I have downloaded ddrescue-1.10 which contains 20 items - none of which can
I recognise as anything that I can do anything with.
Please pretend that you have to give a step by step in this process to a
small, albeit fairly smart, kid who just glazes over at the technotalk.
Can anyone please help. I'm not trying to save the drive, just the data.
Thank you in advance for your time, patience AND CONSIDERATION.
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