Got chromium to work by deleting the boot option: home=sdc1
So boot options:
tce=sdc1 restore=sdc1
However, if restore=sdc1 is omitted, only a fresh desktop is presented - none of the apps I've saved show up in wbar. In fact, ls /mnt/sdc1 reports no files.
So restore seems needed at boot. The reason I was adding home=sdc1 is 'coz that's what the Core Concepts page of the website said in the last paragraph on Persistant Home: "The boot option must always be used, as there is no autoscaning available for persistent home."
Anyway, making progress with TCL.
Terry