4. Secure Boot Loader. Set a GRUB password in order to prevent malicious users to tamper with kernel boot sequence or runlevels, edit kernel parameters or start the system into single user mode in order to harm your system and reset root password to gain privileged control. 5. Use Separate Disk Partitions

4. Secure Boot Loader. Set a GRUB password in order to prevent malicious users to tamper with kernel boot sequence or runlevels, edit kernel parameters or start the system into single user mode in order to harm your system and reset root password to gain privileged control. 5. Use Separate Disk Partitions May 23, 2017 · ABOOT then verifies the authenticity of the boot or recovery images, loads the Linux kernel and initramfs from the boot or recovery images at fixed physical addresses (0x8000 & 0x2000000 in Nexus 6). initramfs is a cpio (gzipped) archive that gets loaded into rootfs (a RAM filesystem mounted at /) during the Linux