>From a different thread, it was said regarding SD flash memories:
>>
>> You can re-image the SD card by downloading the latest filesystem image from
Technologic and with a reader use the 'dd' command to rewrite it.
>>
>You may also want to take an image of the card as-is, before you write >the new
>image, if you want to poke around to see what happened.
>
>regards, ........ Charlie
So this moves me to ask something which I've wondered about for a while. I have
the image for a TS7350 which was shipped on the flash card by TS. I copied the
image to a local disk file as a backup. I would like to be able to extract the
various partitions out of the image, possibly modify them, and re-create a
modified image. Since this image contains a bootloader (I think, or does it?),
plus at least a partition table, as well as the actual filesystem partitions
and data, how can I get at the individual pieces as I would like to do. I
assumed that the first 'n' 512-byte blocks would be bootloader and partition
table, after which I could try to mount at least the first partition on a loop
device. I tried iteratively chopping off the first 512 byte blocks and mounting
what was left over, but this always failed (I forget the exact error message,
but I seem to recall that it implied that the filesystem was
invalid/corrupt/unrecognized).
Is there a way to do what I want, without having some kind of map of the image
file?
Thanks.
--- rod.
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