Re: [Gumstix-users] Cloning a bootable microSD card

[Ash C. <as...@gu...>]

Hi Joseph,

I did verify these steps when I started the article; I'd learned
something pretty useful from the list to I tested it out and dumped
the instructions into an article in hopes that others would find it
helpful.  Have others tried these steps and got them to work?

Perhaps it would be worthwhile to deliberately-undersize ext3
partition to avoid corruption at the end of the file system (SD cards
can vary in size by a little bit).  if you creating the script
manually (http://gumstix.org/create-a-bootable-microsd-card.html),
you'd achieve this by using a value smaller than 247 (for example).

If you are using a script such as Steve's mkbootsd.sh
(http://www.sakoman.com/category/7-gnome-daily-builds-r12.html?download=34),
you'd modify the second line piped into sfdisk from something like
"echo ,,,-" to "echo ,200,,-" where 200 is the number of cylinders.

-Ash



On Fri, Apr 8, 2011 at 1:44 PM, Joseph Hickman
<jos...@gm...> wrote:
> Since the destination card has already been fixed manually, I just attempted
> this with a third card. Earlier, the source and destination cards were of
> the same capacity and manufacturer. This third card is the same capacity but
> a different manufacturer. The card will not load uboot at all. The only
> output I see on the console when I power on is the garbage characters from
> querying for a serial boot.
>
> This isn't inspiring much confidence in the validity of the wiki's cloning
> process. Have the steps ever been confirmed? I see the relevant thread
> linked at the bottom of the wiki page, but aside from the OP thanking the
> contributors for the ideas, I see no confirmation.
>
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