Quotebodhi they both should be able to work with kwboot. I had some time, so I did some experiments with the still working WD My Cloud. This one boots Debian Buster with my own kernel. Your much newer kernel boots, bu no network connectivity. Something has changed between 4.18 and 4.19. I already have the rgmii patch in the .dts and this works up until 4.19. I see that the LED with indicates aby hvdkamer - Debian
Quotebodhi If it has SPL then it is not stock u-boot. Only modern u-boot for this box has SPL and u-boot images (the 1st part is SPL which contains the training code and u-boot is the 2nd part). I'm not sure if I understand you correctly. I feel like the first part of the second line contradicts the first? Or may be I'm misunderstanding some things. This is all pretty new for me...by hvdkamer - Debian
Quotebodhi You don't need a flash programmer. That was my plan B :-). I hoped: Quotebodhi You only need to boot with kwboot using serial console. that this was also possible. Thanks for the confirmation. The flash programmer is ordered, but it should be usefull for other projects as well. Quotebodhi Either your backup mtd0 I think it should be possible with dd and then for ifby hvdkamer - Debian
I apparently did something stupid :-(. Which after a two day search lead me to this thread. So let me explain why I think I needed to kick it... I was also annoyed with the bad CRC warning. A said the saveenv is missing, so I tried the setenv and printenv to check if my new one was found. Of course after a reboot it was gone again. Then I found the fw_setenv and fw_printenv commands in Debianby hvdkamer - Debian