[TriLUG] image of hard drive question

[James Jones]

Joseph,

**** I assume you're asking if the computer can tell the difference
between the original and a dd copy.

Plus if any of the purchased software on the hard drive can tell the
difference and fail to run?

jcj

On Fri, Dec 21, 2012 at 8:35 AM, Joseph Mack NA3T <jmack at wm7d.net> wrote:
> On Fri, 21 Dec 2012, James Jones wrote:
>
>> Here is a question from a newbie at hard drive backups. ( ME ) I am
>> planning to create a mirror image of my windows xp hard drive to place on a
>> shelf for use if original hard drive dies.
>
>
> I used to do this. but I've found problems with doing this. It seems that
> the oil in the motor or the head arm gets sticky on extended storage. About
> half (5 out of 10) of my 10yr old 10-30G drives didn't start up when I tried
> them this year. I now keep my images on active hard disks, or at least on
> disks that get plugged in every month or so.
>
> To save space, I mount the image, fill the empty space with zeroes (dd
> if=/dev/zero of=zero.zero;rm zero.zero) and then gzip the image.
>
>
>> The question -- If original hard drive dies, is there any known software
>> that will NOT run from the mirrored hard drive? ( assuming nothing else in
>> original computer has changed )??
>
>
> I assume you're asking if the computer can tell the difference between the
> original and a dd copy. No. I do this all the time, for backup and restore
> and when moving to a bigger or new disk.
>
> Joe
>
> --
> Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> jmack (at) wm7d (dot) net - azimuthal equidistant map
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