NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone, issues

[Warner Losh]

On Mon, Nov 30, 2020, 12:34 AM Christian Corti via cctalk <
cctalk at classiccmp.org> wrote:

> On Sun, 29 Nov 2020, Liam Proven wrote:
> > If there are any errors on the drive, I would recommend GNU
> > ``ddrescue``. Do not confuse this with the older (but still
> > maintained) dd_rescue which is the product that inspired the GNU one;
> > the newer one is more capable.
> >
> > It images but skips and continues on error, whereas ``dd`` will simply
> fail.
>
> Without havingh read the man page of ddrescue, does it do more magic than
> "dd conv=noerror,sync" ?
>

Yes. It retries with different block sizes to recover stubborn to read
data. It keeps track so you can hammer for days or weeks on the stubborn
bits of the disk

Warner

>