Bob Schwier on 21 Jul 2010 08:38:25 -0700

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[PLUG] Ubuntu does not think that is a trusted source

  • From: Bob Schwier <>
  • To: Philadelphia Linux User's Group Discussion List <>
  • Subject: [PLUG] Ubuntu does not think that is a trusted source
  • Date: Wed, 21 Jul 2010 08:38:18 -0700 (PDT)
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  • Reply-to: Philadelphia Linux User's Group Discussion List <>
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in playing with my ubuntu hardy I could not con the damned thing into
installing a program from  In sys admin, it claimed I could add
on software sources but it would not let me apply the address that I was
trying to get ddrescue from.
The result is that i have something on my machine in a folder titled
ddrescue 1.10 that cannot be invoked either from the terminal or
from the applications button.
I also found all sorts of interesting buttons such as dosemulate that I
would like to check out except that when I hit them nothing happens.

--- On Sat, 4/3/10, sean finney <> wrote:

From: sean finney <>
Subject: Re: [PLUG] dying hd?
To: "Philadelphia Linux User's Group Discussion List" <>
Date: Saturday, April 3, 2010, 5:34 AM

On Wed, Mar 31, 2010 at 10:53:48AM -0400, Eric wrote:
> > There is dd_recover and dderecover as well (yes they are different).
> >   
> ... I've used one but not the other (I think it was dd_recover) and it
> is essential for what you're trying to do here.  I was able to set it to
> try a fixed number of times to try to read a bad block and then just
> continue to the next block without ending the program.  It can also do

i'm a big fan of dd_rescue (debian package: ddrescue).  especially with the
-A flag, where it will after giving up on a chunk of disk replace it
with an equivalently large padding of zero bytes (i.e. the resulting image
should still hopefully be a consistant filesystem image, just with a few
corrupt files).


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