this might help also
http://www.forensicswiki.org/wiki/Ddrescue On Thu, Jun 25, 2009 at 4:43 PM, Tom <[email protected]> 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 <[email protected]> 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. >> -- >> View this message in context: >> http://www.nabble.com/DDRescue-me...-please..-tp24194391p24194391.html >> Sent from the Gnu - ddrescue mailing list archive at Nabble.com. >> >> >> >> _______________________________________________ >> Bug-ddrescue mailing list >> [email protected] >> http://lists.gnu.org/mailman/listinfo/bug-ddrescue >> > >
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