My current problem is the same as the one I have been getting since my Apr 22 post above: when I `go` this zImage: https://downloads.laboratoryb.org/ap135/openwrt-avanta-generic-aruba_ap-135-initramfs-uImage .... that at the first real instruction, a `050000ea` (which is a 5-word branch from 0x20 to 0x3c), I get a data abort from the MMU: https://paste.c-net.org/OccasionExtended (it shows aby hurricos - Debian
I actually used the image for the MI424WR-rev-I. I think the issue is interference on the serial line: either - there is a level converter between the serial console which is not active until the bootROM is done, or - the serial console on the outside of the AP135 is ttyS1, not ttyS0. I know there's a level converter because the serial console is an external RS232-compatible one --by hurricos - Debian
Perhaps I should make another thread for this, but ... For booting the AP-135, since it doesn't play nice with kwboot for some reason, we must try the stock bootloader. Its bootloader does not have a proper bootm; its `boot` command will always check[^1] that the image it is booting is signed. The other option is to use `go` to jump to an image directly; the same idea was used in the aby hurricos - Debian
You did mention that electrical interference may screw things up -- it's possible that 1) as I mentinoed, the MA3232C chip might be interfering somewhat, or 2) (and this would be even cleverer on Aruba's part), that the MA3232C isn't reliably fully initialized by the time the device is fully powered on. A solution to #2 would be to find a clean way to force a soft reset whichby hurricos - Debian
Hey there. I picked up an AP-134 (identical to the 135, but external antennas). Aruba's U-boot does not include a `bootm`, but only an `apboot`, which also checks what you boot against a certificate stored in flash (16MiB MXIC SPI NOR). A copy of my device's flash is here: https://downloads.laboratoryb.org/dumps/AP135/ Its U-boot also comes with md and mm, so one way in would be tby hurricos - Debian
Relevant OpenWrt forum thread: https://forum.openwrt.org/t/adding-openwrt-support-for-ctera-c200-v2/113042 @chkdsk88, tomorrow I will pass by the Lab and use `md` to dump the entire contents of NAND from my Ctera C200 V2 (and provide the u-boot script I used to do so). I've also messaged you directly regarding serial access to my Ctera C200 V2.by hurricos - uBoot
Hey chkdsk88, Thank you for your Ctera C200 V1 OpenWrt port. Thank you for providing this kwbootable binary from your Ctera C200 V2. I have been looking for this for a long time ever since your V1 port. I hope this might help: I was able to use your kwboot to get a shell on my Ctera C200 V2 by modifying it as posted.by hurricos - uBoot