I followed the directions at the link below to get root and wifi tether. This morning I was prompted to update to 2.1 so I accepted. The device rebooted to SPRecovery I then chose Install > Allow update.zip Installation > Install /sdcard/update.zip (deprecated)
It then fails on the wireless driver tiwlan_drv.ko. I'm assuming this is because the previous wireless driver was replaced to get wifi tether working.
What is the best route to get 2.1 on my device?