Quote:
Originally Posted by desterly
Yeah I didn't really look into the code for the bootloader... I do know the kernel readme on the Kobo-Reader github has this note:
Code:
Do not install a new kernel unless you are prepared to open your Kobo up and
make a backup disk image of the internal MicroSD card first. If your new kernel
fails for any reason, you will not be able to boot your Kobo even into recovery
mode. If you mess up the install by writing to the wrong offset or too big an
image, just reinstalling the old kernel using a manual `dd' won't work; you'll
need to restore the whole 2GB firmware image.
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I don't think your Kobo has an sd card inside, its onboard flash memory.
So in your case if the bootimage is broken, your f#cked.
Its easier to just to dd the bootimage, and restore from that, however you need
access to the onboard flash memory which is a tricky situation
Quote:
Originally Posted by desterly
Edit: Looking through the bootloader code, fastboot support is there however the only way to enter it is from the U-Boot console.... which would require a console connection..
There's a few projects/utilities that seem to indicate the devices "should" be able to enter u-boot commands while up but not sure if the Kobo's have that functionality enabled on the chip.. <shrug>
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That would seem highly unlikely, but they have to program the chips somehow. My guess it can be done by connecting it by hand according to the datasheet. (soldering involved)
If you want to take a closer look, either enable telnet and manually dump your flash.
Or use this tool I made a while ago:
https://www.mobileread.com/forums/sh...43#post3812643
It will dump the Image onto your KOBOeReader/Books partition.
Its about 500/600 mb.
EDIT: Seems davidfor doesn't have the image yet, as he put it, restoring would be a problem.
If you do make a backup, consider uploading it to our Grand Sorcerer/Archivist.