[TriLUG] Linux tools for partition/file retrieval

[Ken Mink via TriLUG]

On 12/28/19 6:34 AM, Joseph Mack NA3T via TriLUG wrote:
> On Fri, 27 Dec 2019, Steve Litt via TriLUG wrote:
>
>> Note that Joe Mack recommends adding -n (noscrape) to the preceding
>> ddrescue command. I don't know the ramifications of doing so.
>
> It skips over bad blocks. If you have dying hardware, you want to 
> recover as many blocks as you can while the hardware is still working. 
> After the first pass, and if the hardware is still working, you do a 
> 2nd pass where you retry the failed blocks many times.
>
> Joe
>

I know I'm coming in a little late on this. When I've been through this, 
I make sure the ddrescue target is to a volume that can be snapshotted; 
LVM, ZFS, etc. That gives you the ability to start over if your recovery 
attempts have unintended negative consequences.


Ken