Hello once more. Interesting things to report.
HDR1. The first to hang at boot and the one I wiped the HDD of partitions is still booting. Currently having its content put back on.
HDRs 2 and 3 as of last night where both hanging at boot with Custom FW 4.1.3 in the display.
Given the apparent success of wiping the HDD I proceeded to do that with HDR2 as its critical for my daughters Our Yorkshire Farm viewing!
HDR2's HDD was wiped, repartitioned with gparted and put back in. CFW reinstalled. All the packages I need put back in. Rebooted often and all was well (fingers crossed).
HDR3 I took a different approach. I had already deleted the mnt/hd4/opt folder on this. It rebooted, was re CFW'd and after installing all my required packages rebooted it and it hung again. So this time I repeated the process, but after each package install rebooted the box. I installed these in this order...
restart-now
channel-editor
convertfiles
dropbear
fixfilenames
fixfilepaths
log-viewer
mediatomb
mobile-remote-control
nasmount
newk
and it hung on reboot.
Deleted mnt/hd4/opt again, it rebooted. Got the barebones CFW back on and this time installed just Newk. Rebooted and it hung!!!!!!
Went in and renamed newk to "Dodgy newk". Expecting the program then couldn't run and the box will boot. It did boot, but took a little longer. Newk was still present in settings but was now titles "Dodgy Newk". It was set to off, its default is auto. I rebooted the box OK. Set Dodgy Newk to auto and again rebooted OK.
I have attached logs that were in /opt/tmp/syslog in case they shed any light.
Sorry prpr forgot to run "ps". I am happy to recreate the problem and run it if you think its of any help. I can't run it when the system hangs, but could run it after the hang and after renaming the Newk folder, if that helps at all.