ok. i didn't start from a fresh flash, is it a problem? i removed the folders .accounts , .aegis and so on and then installed the open kernel. Now, before i flash the ubiboot kernel i must be sure to have the .conf file with correct paths. # The first OS is usually Nitdroid. # This section lists the Nitdroid specific switches and kernels G_OS1_NUM=3 G_OS1_AUTOBOOT=0 G_OS1_PARTITION=2 i have no partitions, is it ok? G_OS1_NAME="Nitdroid" G_OS1_1_LABEL="Eyes zImage.pr13 kernel" G_OS1_1_FILE="/boot/Nitdroid/boot/zImage.pr13" G_OS1_2_LABEL="E-yes's L2Fix Nitdroid image" G_OS1_2_FILE="/boot/Nitdroid/boot/zImage_e-yes_nitdroid+l2fix" in my /boot/ folder i have 2 files: zImage_e-yes_nitdroid+l2fix and zImage_2.6.32.54-openmode_l2fix , is enough? G_OS1_3_LABEL="E-yes Kernel with ADB/USB" G_OS1_3_FILE="/boot/Nitdroid/boot/zImage_adb_usb" i don't have the /boot/nitdroid/ folder yet , i have the /home/nitdroid folder with the extracted image of nitdroid G_OS1_4_LABEL="" G_OS1_4_FILE="" G_OS1_5_LABEL="" G_OS1_5_FILE="" G_OS1_6_LABEL="" G_OS1_6_FILE=""