@plourde, you do not need to remove sillyboot at all, sillyboot and ubiboot operate at different boot phases. How sillyboot works:boot loader starts up the flashed kernel just as usual last part of kernel startup is call to /sbin/preinit which does number of things before launching up /sbin/init sillyboot is a modification of /sbin/preinit which allows starting up different init, based on user selection How ubiboot works:boot loader starts up the ubiboot kernel instead of device kernel ubiboot runs a self-contained linux minidistro which has many things, including the boot menu selection based on user selection, ubiboot loads up the next level kernel and set sup the correct boot environment. a) for Harmattan, it prepares kernel to run /sbin/preinit_harmattan from mmcblk0p2. b) for Nitdroid, it prepares kernel to run /sbin/preinit_nitdroid from mmcblk0p2. c) for Nemo, it prepares kernel to run /sbin/init from mmcblk0p4. d) for Firefox, it prepares kernel to run /sbin/preinit_firefox from mmcblk0p2. e) and so on... last thing what happens, is that ubiboot executes the loaded 2nd level kernel, which goes on and starts the prepared preinit/init file. So, now you understand that when you use ubiboot, your sillyboot will never be run at all, the modified /sbin/preinit that is sillyboot is sidestepped totally. To install ubiboot, this is the simple list of things what to do: 1.) copy the file ubiboot.conf to your /home/userMyDocs/boot/ directory 2.) copy the cpio archive to your /home/user/MyDocs/boot/ directory 3.) copy your kernels to /boot/ directory 4.) copy the preinits to /sbin/ directory 5.) flash the ubiboot kernel That's it. And remember to check that ubiboot.conf has the correct list of kernels that you copied to /boot/ There are dozens of things you could do differently but this is the basic setup.