sudo apt remove -y --purge triggerhappy logrotate dphys-swapfile cron sudo apt autoremove -y --purge sudo apt install -y busybox-syslogd sudo apt remove -y --purge rsyslog sudo sh -c 'echo -n "fastboot noswap ro" >>/boot/cmdline.txt' sudo rm -rf /var/lib/dhcp/ /var/run /var/spool /var/lock /etc/resolv.conf sudo ln -s /tmp /var/lib/dhcp sudo ln -s /tmp /var/run sudo ln -s /tmp /var/spool sudo ln -s /tmp /var/lock sudo touch /tmp/dhcpcd.resolv.conf; ln -s /tmp/dhcpcd.resolv.conf /etc/resolv.conf sudo rm /var/lib/systemd/random-seed sudo ln -s /tmp/random-seed /var/lib/systemd/random-seed sudo sed -i 's#ExecStart=/lib/systemd/systemd-random-seed load#ExecStartPre=/bin/echo "" >/tmp/random-seed\nExecStart=/lib/systemd/systemd-random-seed load#' /lib/systemd/system/systemd-random-seed.service sudo systemctl daemon-reload sudo systemctl disable console-setup sudo sed -i 's#\(.*PARTUUID.*defaults\)\(.*\)#\1,ro\2#' /etc/fstab sudo cat <>/etc/fstab tmpfs /tmp tmpfs nosuid,nodev 0 0 tmpfs /var/log tmpfs nosuid,nodev 0 0 tmpfs /var/tmp tmpfs nosuid,nodev 0 0 EOT sudo cat <<"EOT" >>/etc/bash.bashrc # set variable identifying the filesystem you work in (used in the prompt below) set_bash_prompt(){ fs_mode=$(mount | sed -n -e "s/^\/dev\/.* on \/ .*(\(r[w|o]\).*/\1/p") PS1='\[\033[01;32m\]\u@\h${fs_mode:+($fs_mode)}\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ ' } alias ro='sudo mount -o remount,ro / ; sudo mount -o remount,ro /boot' alias rw='sudo mount -o remount,rw / ; sudo mount -o remount,rw /boot' # setup fancy prompt" PROMPT_COMMAND=set_bash_prompt EOT sudo cat <>/etc/bash.bash_logout sudo mount -o remount,rw / history -a sudo mount -o remount,ro / sudo mount -o remount,ro /boot EOT