I am getting the following error message when running sysupgrade from the BTHOMEHUBV5A-installimage for a new install on to a BT Home Hub 5A:
Cannot save config while running from ramdisk. killall: watchdog: no process killed Watchdog handover: fd=3 - watchdog - Nand upgrade failed Command failed: Request timed out
I have tried restoring the BT firmware image and repeating the install procedure from the beginning. The error message is the same each time.
Both nanddump and restore work without any errors. This suggests the nand hardware in the router is OK. The length of the hh5a.nanddump file generated is 133,562,368 bytes, which looks like the entire device reads OK.
I have tried the "nand bad" command from the VR9 boot loader. This reports the flash device has 5 bad blocks:
Device 0 bad blocks: 0x6c80000 0x7f80000 0x7fa0000 0x7fc0000 0x7fe0000
I presume the file system will exclude these blocks from use and this is not the cause of my problem.
I am using lede-lantiq-xrx200-BTHOMEHUBV5A-installimage.bin downloaded from https://github.com/mkresin/BTHH5a-installimage/releases/download/v1.0/lede-lantiq-xrx200-BTHOMEHUBV5A-installimage.bin
This has the following sha256: 56384323940ca34572287ab8fe3e9367321e71fa3710063ed31bfebfc1f4d767
Is this is the most up to date version?
I have checked that the router can read the openwrt-18.06.5-lantiq-xrx200-bt_homehub-v5a-squashfs-sysupgrade.bin file from the USB drive. Running md5sum on it from the router displays the same value as md5sum produces on my PC on the original downloaded file.
Can anybody suggest what I should do to diagnose why the upgrade is failing? The install image code on https://github.com/mkresin/BTHH5a-installimage appears to be stable for the past 2+ years. Surely I have not encountered a new problem with it ?