[kwlug-disc] Don't do what I did...

[CrankyOldBugger]

Well I'm glad that you've got it all figured out.  It was starting to drive
me up the wall when all of my bigger drives were suddenly shrinking...

The new toaster is much faster than the old one, though, so I'm happy with
it.  I managed to get all of my old drives wiped, except for three that
just don't want to light up.  I'll be putting them in the vice in the
garage as soon as I get it cleaned up enough to find it!


On Tue, 6 Apr 2021 at 19:46, Chris Irwin via kwlug-disc <
kwlug-disc at kwlug.org> wrote:

> On Tue, Apr 06, 2021 at 01:54:07PM -0400, Chris Irwin via kwlug-disc wrote:
> >On Mon, Mar 01, 2021 at 07:12:42PM -0500, CrankyOldBugger wrote:
> >
> >I guess it does some transparent LBA sector size remapping, to "help"
> >if you want to use MBR on large format drives for some unknown reason.
> >So if you plug in a drive with 4096-bit sectors , it "helpfully"
> >translates that to 512-bit sectors.
>
> Here's a pretty good write up I found about the issue I had, which may
> have been different than yours (it wasn't truncating my drives):
>
> https://www.klennet.com/notes/2018-04-14-usb-and-sector-size.aspx
>
> I had it the other way around. It forcibly converts drives to 4096b
> sectors.
>
> The drive when connected via sata reports the following via parted:
>
>      Sector size (logical/physical): 512B/4096B
>
> When connected via the problematic USB enclosure:
>
>      Sector size (logical/physical): 4096B/4096B
>
> Because of this difference, the partition table can't be found
> correctly.
>
> --
> Chris Irwin
>
> email:   chris at chrisirwin.ca
>   xmpp:   chris at chrisirwin.ca
>    web: https://chrisirwin.ca
>
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