Thread: Clara HD Kobo Clara won't boot
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Old 05-19-2024, 10:19 PM   #4
DNSB
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Join Date: Jul 2010
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Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by shyhermit View Post
DNSB,

Just a thought. There is a free utility called ImageUSB from Passmark (free license for personal use):

https://www.osforensics.com/tools/write-usb-images.html

It allows "whole image" to be flashed to USB based disks. Can it be used to recover Xenophon's Clara HD by simply finding a "stock" image of the Clara HD and "reflash" back to Xenophon's device to overwrite the presumably corruption partition(s)? Can such an image file be downloaded from Kobo or elsewhere for recovery purposes?

What about devices without microSD but instead built-in storage? Can this recovery method work?
No, it will not work. The exposed partition when you connect a Kobo ereader to your computer using USB is the only item you can see over that connection. For a Kobo ereader, you have no access to the two ext4 partition or the free space at the start and end of the disk. That is why you need to remove the µSD card from the ereader and mount it directly on your computer so the entire disk is accessible.

I looked at the ImageUSB utility at one point and it seemed to offer very little the the USB Image Creator and USB Image Writer utilities do not offer.

You may want to check the Use full 4GB in Newer Mini? thread for an example of why the µSD card must be removed to allow access to the full disk.

Last edited by DNSB; 05-19-2024 at 10:22 PM.
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