i am using thumb with multiboot and so far no problem and wmy phone is working fine....so don't worry..and ya before installing anything make a habit to read its wiki to avoid problems...
v boot-mechanism - i bootmenu - Fanoush's Boot Menu i bootscreen - bootscreen control panel applet i getbootstate - Determines runlevel on maemo system p kernel-bootimg - Linux kernel boot image (kernel 2.6.28-omap1) p kernel-power-bootimg - Linux kernel boot image (kernel power 2.6.28.10) p recovery-boot - Recovery Console Mode Boot option p u-boot-bootimg - Das U-Boot bootloader for Nokia N900 (boot image) p u-boot-flasher - Das U-Boot bootloader for Nokia N900 (flashable image with ke p u-boot-for-power-kernel - A package of u-boot for creation of combined u-boot+kernel im p u-boot-tools - Das U-Boot bootloader for Nokia N900 (companion tools) p uboot-mkimage - generate kernel image for U-Boot Nokia-N900:~# aptitude search kernel-power i kernel-power - Flashable Linux kernel (kernel power 2.6.28.10) p kernel-power-bootimg - Linux kernel boot image (kernel power 2.6.28.10) p kernel-power-debug - Linux kernel debug symblos (kernel power 2.6.28.10) i kernel-power-flasher - Linux kernel updater (kernel power 2.6.28.10) p kernel-power-headers - Linux kernel headers (kernel power 2.6.28.10) i kernel-power-modules - Linux kernel modules (kernel power 2.6.28.10) p kernel-power-modules-debug - Linux kernel modules for debugging (kernel power 2.6.28.10) i kernel-power-settings - Tools for the customization and overclock Linux kernel p kernel-power-source - Linux kernel sources for rx-51 product (kernel power 2.6.28.1 p linux-kernel-power-headers - Linux Kernel headers for development (kernel power 2.6.28.10)