#!/bin/bash
apt-get remove  dphys-swapfile
apt-get install busybox-syslogd; dpkg --purge rsyslog
sed -i 's/$/ fastboot noswap ro/' /boot/cmdline.txt
rm -rf /var/lib/dhcp/ /var/run /var/spool /var/lock /etc/resolv.conf
ln -s /tmp /var/lib/dhcp
ln -s /tmp /var/run
ln -s /tmp /var/spool
ln -s /tmp /var/lock
touch /tmp/dhcpcd.resolv.conf; ln -s /tmp/dhcpcd.resolv.conf /etc/resolv.conf
rm /var/lib/systemd/random-seed
ln -s /tmp/random-seed /var/lib/systemd/random-seed
sed -i '21iExecStartPre=/bin/echo "" >/tmp/random-seed' /lib/systemd/system/systemd-random-seed.service
systemctl daemon-reload
sed -i '7i\ \ mount -o remount,rw /' /etc/cron.hourly/fake-hwclock
sed -i '9i\ \ mount -o remount,ro /' /etc/cron.hourly/fake-hwclock
insserv -r bootlogs;
sed -i 's/boot    vfat    defaults,errors=remount-ro,rw,owner,flush,umask=000       0 2/boot    vfat    defaults,errors=remount-ro,ro,owner,flush,umask=000       0 2/' /etc/fstab
sed -i 's/ext4    errors=remount-ro,rw,noatime,nodiratime                   0 1/ext4    errors=remount-ro,ro,noatime,nodiratime                   0 1/' /etc/fstab
echo "tmpfs              /var/log     tmpfs   nodev,nosuid,mode=1777                                    0 0" >> /etc/fstab
echo "tmpfs              /var/tmp     tmpfs   nodev,nosuid,mode=1777                                    0 0" >> /etc/fstab

# 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 /home'
alias rw='sudo mount -o remount,rw / ; sudo mount -o remount,rw /home'
# setup fancy prompt"
PROMPT_COMMAND=set_bash_prompt

cat << EOF >> /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 /'
alias rw='sudo mount -o remount,rw /'
# setup fancy prompt"
PROMPT_COMMAND=set_bash_prompt
EOF

cat << EOF >> /etc/bash.bash_logout
mount -o remount,rw /
history -a
mount -o remount,ro /
EOF

sed -i 's/usr\/bin\/X/usr\/bin\/X\ \-logfile\ \/tmp\/Xorg.0.log/' /etc/X11/xinit/xserverrc