Re: Help with ddrescue
On Fri, 08 May 2015 19:20:37 -0400
The Wanderer <email@example.com> wrote:
> On 05/08/2015 at 07:08 PM, German wrote:
> > On Fri, 8 May 2015 23:54:46 +0100 Lisi Reisz <firstname.lastname@example.org>
> > wrote:
> >> On Friday 08 May 2015 23:07:34 German wrote:
> >>> Can I try to run fsck on the failed drive?
> >> They are *your* files. But given that you have actually got a
> >> suitable disk, i would at least dd them first onto that.
> > That's what I got:
> > spore@asterius:~$ lsblk
> > NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
> > sda 8:0 0 119.2G 0 disk
> > ├─sda1 8:1 0 512M 0 part /boot/efi
> > ├─sda2 8:2 0 111.3G 0 part /
> > └─sda3 8:3 0 7.4G 0 part [SWAP]
> > sdb 8:16 0 465.8G 0 disk
> > sdc 8:32 0 1.8T 0 disk /media/spore/9F86-0131
> > sdd 8:48 0 1.8T 0 disk
> > └─sdd1 8:49 0 1.8T 0 part
> > Where sdd is my failed drive. sdc is my spare drive. The correct
> > procedure will be ddrescue if=/dev/sdd1 of=/dev/sdc ?
> No. That might potentially work (except that, if I'm reading the
> ddrescue man page correctly, the syntax is wrong), but it wouldn't be
> First, unmount /dev/sdc.
> Then do one of two things:
> 1) Create /dev/sdc1 (as an unformatted partition, using fdisk or
> parted or whatever partitioning tool you choose), and then run
> ddrescue /dev/sdd1 /dev/sdc1 /any/path/you/want/ddrescue.log
> 2) run
> ddrescue /dev/sdd /dev/sdc /any/path/you/want/ddrescue.log
Ok, I think I am getting closer. How big is a log file? Can it be
anywhere on all drives that have enough space? For instance:
ddrescue /dev/sdd /dev/sdc /dev/sda2/ddrescue.log will work?
> (Don't do both, of course.)
> Note that I did NOT specify the 'if=' and 'of=' syntax. That is
> correct syntax for dd, but the ddrescue man page does not mention it,
> and I believe that it is incorrect syntax for ddrescue.