[SOLVED] OP boot problem

[CVL]

The difference between 0.8 and 0.10 on gpio is the use of spi bus for mcp3008

mcp3008  Pin  
Din            19
Dout         21
CL            23
CE0          24

You can try if disable SPI helps. Menu->Preferences->Raspberry Pi Configuration->Interfaces

I tried to disable all interfaces except I2C and serial in order to eliminate this possibility of interference. Badly, it doesn't have any impact.

I wonder whether it is possible to have output of this early stage of booting? On linux bootloaders (grub) one can load line by line the kernel, initial ramdisk etc. et see where there might be a bug. Is there any such possibility on RPi ?