I may have made a mistake by upgrading from a shell command line rather than the GUI but I got into a loop with the sad smiley face. I then stopped mediacenter and moved the contents of the .kodi directory as instructed but to no avail. In fact, a new .kodi directory has not been created.
Before I do a completely new install, I thought I’d see if someone has a suggestion for a surgical fix.
I’m running from a USB stick,
Logs at http://paste.osmc.io/muzitunoki
Thanks
Logs show the following:
unable to clean up mess surrounding `./boot/System.map-4.2.3-13-osmc’ before installing another version: Read-only file system
Looks like your boot partition was read only when you did the update.
You will need to ssh into the atv, and fix that.
Can you still ssh into your atv1 ?
I can ssh in and did so several times previously to implement various recovery suggestions including moving the .kodi folder, all to no avail. Somehow I missed the message about the read-only file system 
All good now.
Thanks @Spinner
@unmesh You are welcome. 
If anyone else runs into this, It’s a bit of a trick to fix.
You need to fix/fsck the boot partition (as explained in my post about update failures from months ago), force the previous install to complete (running the apt-get dist-upgrade will throw errors to tell you what to do.), then run the dist-upgrade again to make sure everything was done, then sudo reboot.
Don’t yank the power cord to reboot, at any point of fixing the system, or the partition will be read-only again.
Since you can’t access the Kodi menu, you need to use sudo reboot
There’s a thread from a couple days ago where I helped someone step by step through the diagnosis and fix.
That HFS partition on the ATV1 is a real pain.
I should also mention that there is currently a bug with krypton and the CrystalHD card being detected but not used during playback.
Sam is investigating.