When I look into your ubiboot log, I can see that you are trying to load 2 kernels, zImage_2.6.32.54-openmode_l2fix and zImage_e-yes_nitdroid+l2fix. What I find strange is that you actually have managed to boot Harmattan correctly once: Dec 2 11:46:11 (none) user.notice root: Loading kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix Dec 2 11:46:11 (none) user.notice root: kexec_load() successful But then again, after this it fails every time: Dec 2 11:51:28 (none) user.notice root: Selecting Nitdroid OS, running kernel /boot/Nitdroid/boot/zImage_e-yes_nitdroid+l2fix Dec 2 11:51:29 (none) user.notice root: Cannot load Nitdroid kernel /boot/Nitdroid/boot/zImage_e-yes_nitdroid+l2fix -- Dec 2 12:24:59 (none) user.notice root: Selecting Harmattan OS, running kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix Dec 2 12:25:01 (none) user.notice root: Cannot load Harmattan kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix -- Dec 2 13:03:32 (none) user.notice root: Selecting Nitdroid OS, running kernel /boot/Nitdroid/boot/zImage_e-yes_nitdroid+l2fix Dec 2 13:03:33 (none) user.notice root: Cannot load Nitdroid kernel /boot/Nitdroid/boot/zImage_e-yes_nitdroid+l2fix -- Dec 2 13:06:29 (none) user.notice root: Selecting Nitdroid OS, running kernel /boot/Nitdroid/boot/zImage_e-yes_nitdroid+l2fix Dec 2 13:06:30 (none) user.notice root: Cannot load Nitdroid kernel /boot/Nitdroid/boot/zImage_e-yes_nitdroid+l2fix -- Dec 2 13:27:48 (none) user.notice root: Selecting defaults due to timeout in main menu Dec 2 13:27:48 (none) user.notice root: Selecting Harmattan OS, running kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix Dec 2 13:27:50 (none) user.notice root: Cannot load Harmattan kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix -- Dec 2 13:29:14 (none) user.notice root: Selecting defaults due to timeout in main menu Dec 2 13:29:14 (none) user.notice root: Selecting Harmattan OS, running kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix Dec 2 13:29:15 (none) user.notice root: Cannot load Harmattan kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix So what has happened between the instants 11:46:10 and 11:51:28, for the kernel to be not found any longer? So, can you boot to the maintanance console, and check that you really truly have the kernels in Harmattan root partition's boot directory?