RamClean

How to make it work. -On startup a service load a kernel image with a built in initram on ram -When the sd card is removed, a udev rule is triggered and kexec load the new kernel that was previously loaded on ram. -The PC no boot our modded kernel, sdmem is triggered and starts to clean all ram -Finaly when the job is done. your computer poweroff.

depends on: kexec

Instructions: create a direcory in /etc mkdir /etc/ramclean

copy ramzadas to /etc/ramclean cp -r ramzadas /etc/ramclean

(if you dont want to compile the kernel just do "cp vmlinuz /etc/ramclean/vmlinuz" and go to line 30)
Download linux source... any kernel will be acceptable copy config to the kernel source cp config /usr/src/linux

compile the kernel with the config (for maximum power do, make -j8) cd /usr/src/linux make -j8 the kernel will build with no modules and builtin initramfs copy compiled kernel to /etc/ramclean cp arch/x86/boot/bzImage /etc/ramclean/vmlinuz

plug sd card and change the follow udev rule to match with your device copy 11-ramclean.rules to /etc/udev/rules.d/

copy ramclean.service to systemd services cp ramclean.service /usr/lib/systemd/systemd enable the service systemctl enable ramclean start the service systemctl start ramclean

Now try to remove your device and see what happens