rpiarchtoserialtorouter

#!/bin/bash
# Advanced script to install and configure Arch with ppp on indicated sdcardforarch
# More info and newest @ http://www.github.com/iugamarian/raspberrypisetup
# Version 1.73 tested and it works
# Forked from ShorTie	<idiot@dot.com> 
# Brought to you by iugamarian	<iugamarian@yahoo.com> 
# Configuration - choose here carefuly 

sdcardforarch=/dev/sdwhat 			# Before running, lsblk to indicate card here
rpiversionnumber=1			# version, not revision:  0 = autodetect, 1 = BCM2835, 2 = BCM2836
insaneoverclock=1			# Overclock if set to 1. Set to 0 to avoid this.
                      # Keep over_voltage to 0 to keep warranty.
                      # Recommended to have active cooling if overclock. I have a fan on top.
                      # And have a power supply with minimum current of 2A . I have 3A.
                      # According to https://www.raspberrypi.org/forums/viewtopic.php?p=176865#p176865
                      # having an over_voltage of 0 ensures the warranty bit is not set
                      # (force_turbo || current_limit_override || temp_limit>85) && over_voltage>0

# Use a minimum 8 GB card as I also make a swap partition of 512 MB. Down in "Fdisk area".

#********** END Configuration **************************************************************

# Check to see if device is indicated
if [ `echo $sdcardforarch | grep sdwhat |wc -c` -eq 0 ]; then
    echo ""
    echo "The drive to move root to is $sdcardforarch."
    echo ""
else
    lsblk
    echo ""
    echo "Specify the drive by editing the beginning of this script."
    echo ""
    exit 1
fi
# Check to see if running as root
echo -e "\nChecking for root."
if [ `id -u` != 0 ]; then
    echo "Not root."
    echo -e "Need to be run as root.\n"
    echo " Try 'sudo sh rpiarchtoserialtorouter' as a user. Exiting."
    echo ""
    exit 1
else
    echo "Root."
fi
# Noting time when started
start_time=$(date)
echo ""
echo ""
# Pi check
if [ `cat /proc/cpuinfo | grep BCM |wc -c` -eq 0 ]; then
    echo "Not running on a Raspberry Pi."
    rpirunningon=0
#   exit 1
else
    echo "Running on a Raspberry Pi."
    rpirunningon=1
fi
echo ""
rpiversioncorrect=0
#Selecting version
if [ $rpiversionnumber -eq 0 ]; then
    # Autodetect
    rpiversioncorrect=1
    echo "Autodetecting Raspberry Pi version..."
    if [ $rpirunningon -eq 1 ]; then
        # Running on a Pi or Pi 2 during autodetect
        echo "The the cpu of this Raspberry Pi is:"
        echo ""
        if [ `cat /proc/cpuinfo | grep ARMv6 |wc -c` -eq 0 ]; then
            echo "BCM2836 ARMv7 Raspberry Pi 2"
            rpiversion="armv7h"
        else
            rpiversion="unknown"
        fi
        if [ `cat /proc/cpuinfo | grep ARMv7 |wc -c` -eq 0 ]; then
            echo "BCM2835 ARMv6 Raspberry Pi"
            rpiversion="armv6h"
        else
            version="unknown"
        fi
        if [ "$rpiversion" = "unknown" ]; then
                echo "Can't autodetect Raspberry Pi version while running on one."
                echo "Choose rpiversionnumber=1 or rpiversionnumber=2 in configuration."
                echo "Exiting."
                echo ""
                exit 1
        fi
    else
        # Not running on Pi or Pi 2 during autodetect
        echo ""
        echo "Can't autodetect Raspberry Pi version when not running on one."
        echo "Choose rpiversionnumber=1 or rpiversionnumber=2 in configuration."
        echo "Exiting."
        echo ""
        exit 1
    fi
    # End of autodetect
else
    echo "Not autodetecting Raspberry Pi version."
    # End of no autodetect message
fi
if [ $rpiversionnumber -eq 1 ]; then
    rpiversion="armv6h"
    rpiversioncorrect=1
fi
if [ $rpiversionnumber -eq 2 ]; then
    rpiversion="armv7h"
    rpiversioncorrect=1
fi
if [ $rpiversioncorrect -eq 0 ]; then
    # Incorrect rpiversionnumber
    echo "Chosen rpiversionnumber is not 0 1 or 2."
    echo "Choose rpiversionnumber=1 or rpiversionnumber=2 in configuration."
    echo "Exiting."
    echo ""
    exit 1
fi
# End of selecting version
echo ""
echo "Selected Arch architecture is:"
echo ""
echo ""
echo $rpiversion
echo ""
echo ""
echo "============================================================"
echo ""
sleep 2
# Allowing dd to be able to clear MBR (permission)
viewsudouser=`logname`
viewroot=""
# A string echo "" is seen by wc as having 1 character so n+1, and a failed grep has a wc of 0
if [ `echo $viewsudouser | grep "root" |wc -c` != 0 ] && [ `echo $viewsudouser |wc -c` = 5 ]; then
viewroot="root"
fi
# On Arch a no login name gives a wc of 1
if [ `echo $viewsudouser |wc -c` = 1 ]; then
viewroot="root"
fi
# On other systems no login name maybe gives no login name
if [ `echo $viewsudouser | grep "no login name" |wc -c` != 0 ]; then
viewroot="root"
fi
if [ `echo $viewroot |wc -c` != 1 ]; then
echo ""
echo "Only root."
echo "Adding root to the disk group."
echo""
usermod -G disk --append root
else
echo ""
echo "Sudo is used by a user named $viewsudouser."
echo "Adding user named $viewsudouser to the disk group."
echo ""
usermod -G disk --append $viewsudouser
fi
echo ""
echo "Checking for programs that are needed:"
echo ""
# If on Arch this commands install them
pacman -Syu --noconfirm
sleep 2
pacman -S --noconfirm --needed base-devel dosfstools wget libarchive
sleep 2
sync
# On other distributions the user installs them
neededprograms=""
if [ `which fdisk |wc -c` != 0 ]; then
echo "Found fdisk."
else
neededprograms+="fdisk "
fi
if [ `which mkfs.vfat |wc -c` != 0 ]; then
echo "Found mkfs.vfat."
else
neededprograms+="mkfs.vfat "
fi
if [ `which wget |wc -c` != 0 ]; then
echo "Found wget."
else
neededprograms+="wget "
fi
if [ `which bsdtar |wc -c` != 0 ]; then
echo "Found bsdtar."
else
neededprograms+="bsdtar "
fi
echo ""
if [ "$neededprograms" = "" ]; then
echo "All needed programs available."
else
echo "Missing needed programs, install them:"
echo ""
echo $neededprograms
echo ""
echo "On Arch fdisk is in util-linux which is in base-devel."
echo ""
echo "On Arch mkfs.vfat is in dosfstools and bsdtar is in libarchive."
echo ""
echo "Exiting."
echo ""
exit 1
fi
# Detecting availability of indicated device
if ! (fdisk -l | grep $sdcardforarch); then
    echo "Can't find ($sdcardforarch). Insert and indicate it."
    echo "No files. Only devices. Exiting."
    echo ""
    exit 1
else
    echo "Found indicated device $sdcardforarch."
    echo ""
fi
echo ""
echo "============================================================"
echo ""
sleep 2
# Safety unmounting of possible partitions, logicals can start from 5
echo "Unmounting partitions, up to 9, with or without p in front:"
echo ""
umount "$sdcardforarch"1
umount "$sdcardforarch"2
umount "$sdcardforarch"3
umount "$sdcardforarch"4
umount "$sdcardforarch"5
umount "$sdcardforarch"6
umount "$sdcardforarch"7
umount "$sdcardforarch"8
umount "$sdcardforarch"9
umount "$sdcardforarch"p1
umount "$sdcardforarch"p2
umount "$sdcardforarch"p3
umount "$sdcardforarch"p4
umount "$sdcardforarch"p5
umount "$sdcardforarch"p6
umount "$sdcardforarch"p7
umount "$sdcardforarch"p8
umount "$sdcardforarch"p9
swapoff "$sdcardforarch"1
swapoff "$sdcardforarch"2
swapoff "$sdcardforarch"3
swapoff "$sdcardforarch"4
swapoff "$sdcardforarch"5
swapoff "$sdcardforarch"6
swapoff "$sdcardforarch"7
swapoff "$sdcardforarch"8
swapoff "$sdcardforarch"9
swapoff "$sdcardforarch"p1
swapoff "$sdcardforarch"p2
swapoff "$sdcardforarch"p3
swapoff "$sdcardforarch"p4
swapoff "$sdcardforarch"p5
swapoff "$sdcardforarch"p6
swapoff "$sdcardforarch"p7
swapoff "$sdcardforarch"p8
swapoff "$sdcardforarch"p9
echo ""
sleep 5
echo ""
echo "Deleting MBR and fat allocation table general area with dd:"
# Need to dd more because fat filesystems may get confused about random
# data in their first part where they store the fat allocation table
dd if=/dev/zero of=$sdcardforarch bs=1M count=32 iflag=fullblock
echo ""
echo ""
echo "Partitioning indicated device:"
echo ""
# On fdisk older than 25, setting bootable flag adds 1 after a: "a,1" < 25, "a" >= 25
# But I follow the archlinuxarm instructions which don't set booteble flag
# "Fdisk area". Be careful about the new lines (Enter).
fdisk $sdcardforarch <<EOF
o
n



+140M
t
c
n



+512M
n




w
EOF
# Finished partitioning. Be careful about the new lines (Enter).
sleep 5
echo ""
echo "=================================================="
echo ""
echo ""
echo "Detecting if the device is seen as a mmcblk so that partitions have a p in front"
echo ""
if [ `echo $sdcardforarch | grep mmcblk |wc -c` != 0 ]; then
echo ""
echo "Partition numbers have a p in front of them..."
bootpart="$sdcardforarch"p1
swappart="$sdcardforarch"p2
rootpart="$sdcardforarch"p3
else
echo ""
echo "Partition numbers don't have a p in front of them..."
bootpart="$sdcardforarch"1
swappart="$sdcardforarch"2
rootpart="$sdcardforarch"3
fi
echo ""
echo -n "Boot partition is "
echo $bootpart
echo -n "Swap partition is "
echo $swappart
echo -n "Root partition is "
echo $rootpart
echo ""
echo ""
echo "Formatting partitions:"
echo ""
mkfs.vfat -n BOOTRPI $bootpart
mkswap $swappart
# Disabling lazy options so that all inodes get written now not bit by bit later.
mke2fs -t ext4 -m 0 -F -O ^64bit -L ARCHRPI -E lazy_itable_init=0,lazy_journal_init=0 $rootpart
echo ""
echo "Mounting partitions:"
echo ""
mkdir sdcardforarch
mount $rootpart sdcardforarch
mkdir sdcardforarch/boot
mount $bootpart sdcardforarch/boot
echo ""
echo "=================================================="
echo ""
sleep 2
sync
sleep 2
echo "Downloading Arch image with wget:"
echo ""
echo ""
if [ "$rpiversion" = "armv6h" ]; then
# The nl mirror is faster but does not have os/
wget -c http://de4.mirror.archlinuxarm.org/os/ArchLinuxARM-rpi-latest.tar.gz
echo "Unpacking Arch image into the root partition with bsdtar... wait... (armv6h)"
bsdtar -xpf ArchLinuxARM-rpi-latest.tar.gz -C sdcardforarch
fi
if [ "$rpiversion" = "armv7h" ]; then
# The nl mirror is faster but does not have os/
wget -c http://de4.mirror.archlinuxarm.org/os/ArchLinuxARM-rpi-2-latest.tar.gz
echo "Unpacking Arch image into the root partition with bsdtar... wait... (armv7h)"
bsdtar -xpf ArchLinuxARM-rpi-2-latest.tar.gz -C sdcardforarch
fi
sleep 2
sync
sleep 2
cd sdcardforarch/root
# ... for #!/bin/bash if I put "" gives me an error because of the !
echo '#!/bin/bash' > install3console.sh
cat <<EOF >> install3console.sh
echo ""
# Making sure package lists are up to date right now
pacman -Syu --noconfirm
sleep 2
# Packages only for the Raspberry Pi or ArchLinuxARM (comment if installing on something else)
pacman -S --noconfirm --needed libbcm2835 xf86-video-fbturbo-git kodi-rbp omxplayer packer
# Console packages - fdisk is in util-linux which is in base-devel
pacman -S --noconfirm --needed base base-devel arch-install-scripts dosfstools minicom ddrescue mtools libarchive pkgfile iotop gptfdisk parted mkinitcpio mkinitcpio-busybox upower mc libnewt newt-syrup openssh openssl wiringpi espeak mpg123 flac lame youtube-dl imagemagick git wget libx264 mediainfo ncdu vorbis-tools elinks
sleep 2
# Hack to allow mc to open videos with omxplayer
cp /usr/lib/mc/ext.d/video.sh /usr/lib/mc/ext.d/video.sh.old
echo '#!/bin/sh' > /usr/lib/mc/ext.d/video.sh
echo "omxplayer \"\\\${MC_EXT_FILENAME}\"" >> /usr/lib/mc/ext.d/video.sh
echo ""
echo "Added mc option to open all videos with omxplayer."
echo ""
pkgfile --update
sleep 2
# Omxplayer available as oi for all users
ln -s /usr/bin/omxplayer /usr/bin/oi
# Root aliases, used only by root
cp /root/.bash_profile /root/.bash_profile.old
echo "[[ -f ~/.bashrc ]] && . ~/.bashrc" > /root/.bash_profile
echo 'alias pk="TMPDIR=/root/tmp/pkgs/ EDITOR=nano packer"' >> /root/.bashrc
echo 'alias yt="youtube-dl -f mp4/best"' >> /root/.bashrc
. ~/.bashrc
echo ""
echo "Added link oi -> omxplayer and root aliases yt -> youtube-dl and pk -> packer."
echo ""
echo "Turning off serial console for this Raspberry Pi."
echo ""
############################## For ability to acces router by serial:
#http://logicalgenetics.com/serial-on-raspberry-pi-arch-linux/
sed -i 's/ console=ttyAMA0,115200 / /g' /boot/cmdline.txt
sed -i 's/ kgdboc=ttyAMA0,115200 / /g' /boot/cmdline.txt
systemd stop serial-getty@ttyAMA0.service
systemd disable serial-getty@ttyAMA0.service
##############################
echo "Rebooting to have initrd loaded."
sleep 2
sync
sleep 8
reboot
EOF
chmod a+x install3console.sh
echo '#!/bin/bash' > install4autologinroot.sh
cat <<EOF >> install4autologinroot.sh
echo ""
echo "Activating autologin root... not recomended but maybe cool..."
echo ""
echo "If you want to keep ssh and have a user, stop this script with (ctrl + c)"
echo ""
sleep 2
echo "2"
echo ""
sleep 2
echo "1"
echo ""
sleep 2
echo "Too late..."
echo ""
sync
sleep 1
systemctl stop sshd.service
systemctl disable sshd.service
echo ""
echo "Wait..."
sleep 1
sync
sleep 1
systemctl daemon-reload
sleep 5
sync
sleep 3
rm /etc/systemd/system/getty.target.wants/getty@tty1.service
cp /lib/systemd/system/getty@.service /etc/systemd/system/getty@tty1.service
sed -i 's/--noclear/--autologin root --noclear/g' /etc/systemd/system/getty@tty1.service
echo ";Alias=getty@tty1.service" >> /etc/systemd/system/getty@tty1.service
ln -s /etc/systemd/system/getty@tty1.service /etc/systemd/system/getty.target.wants/getty@tty1.service
sleep 1
echo ""
echo "Hack for autologing into root console and disabling ssh activated."
echo ""
echo "If you want to build packages, it's hard to be root, you need to:"
echo ""
echo "1) Edit /usr/bin/makepkg"
echo ""
echo "    a) Add 'asroot' in OPT_LONG=()"
echo "    b) Comment and add a sleep 1 inside if (( EUID == 0 ))"
echo ""
echo "2) Use packer to install packages from aur"
echo ""
echo "To avoid tmpfs for /tmp used by packer (large git repositories)"
echo 'alias packer="TMPDIR=/root/tmp/pkgs/ EDITOR=nano /usr/bin/packer"'
echo "Use the alias packer in .bashrc."
echo ""
sleep 2
sync
sleep 2
EOF
chmod a+x install4autologinroot.sh
cd ../../
######Directory changing ending
echo "Files /root/install* have been written."
echo ""
echo ""
echo "=================================================="
echo ""
echo ""
sleep 2
sync
sleep 2
# Root is on partition 3 not 2, informing cmdline.txt and fstab
mkdir sdcardforarch/etc/
sed -i 's/mmcblk0p2/mmcblk0p3/g' sdcardforarch/boot/cmdline.txt
sed -i 's/mmcblk0p2/mmcblk0p3/g' sdcardforarch/etc/fstab
echo "/dev/mmcblk0p2	none      	swap      	defaults  	0 0" >> sdcardforarch/etc/fstab
# Choosing a mirror
sed -i 's/Server = http:\/\/mirror.archlinuxarm.org\/$arch\/$repo/#Server = http:\/\/mirror.archlinuxarm.org\/$arch\/$repo\n\nServer = http:\/\/nl.mirror.archlinuxarm.org\/$arch\/$repo/g' sdcardforarch/etc/pacman.d/mirrorlist
echo ""
mkdir sdcardforarch/etc/modules-load.d
echo "Conf file to load module ppp-generic:"
echo "/etc/modules-load.d/ppp-generic.conf"
echo "ppp-generic" > sdcardforarch/etc/modules-load.d/ppp-generic.conf
echo ""
echo "Conf file to load module snd-bcm2835:"
echo "/etc/modules-load.d/snd-bcm2835.conf"
echo "snd-bcm2835" > sdcardforarch/etc/modules-load.d/snd-bcm2835.conf
echo ""
echo ""
echo "The link to provider will be made by install1.sh"
echo ""
echo "The systemd ppp enable will be made by install1.sh"
echo ""
echo "Conf file to reduce device wear by systemd:"
echo "/etc/systemd/journald.conf.d/disablejournald.conf"
mkdir sdcardforarch/etc/systemd/journald.conf.d
echo "[Journal]" > sdcardforarch/etc/systemd/journald.conf.d/20-disable-journald.conf
echo "Storage=none" >> sdcardforarch/etc/systemd/journald.conf.d/20-disable-journald.conf
echo "Seal=no" >> sdcardforarch/etc/systemd/journald.conf.d/20-disable-journald.conf
echo ""
cat sdcardforarch/etc/systemd/journald.conf.d/20-disable-journald.conf
echo ""
echo ""
echo ""
echo "Configuring man-db.timer and updatedb.timer to start later."
mkdir sdcardforarch/etc/systemd/system/man-db.timer.d
echo "[Timer]" > sdcardforarch/etc/systemd/system/man-db.timer.d/man-db.timer.conf
echo "OnCalender=" >> sdcardforarch/etc/systemd/system/man-db.timer.d/man-db.timer.conf
echo "OnCalendar=13:15" >> sdcardforarch/etc/systemd/system/man-db.timer.d/man-db.timer.conf
echo "OnBootSec=1200" >> sdcardforarch/etc/systemd/system/man-db.timer.d/man-db.timer.conf
mkdir sdcardforarch/etc/systemd/system/updatedb.timer.d
echo "[Timer]" > sdcardforarch/etc/systemd/system/updatedb.timer.d/updatedb.timer.conf
echo "OnCalender=" >> sdcardforarch/etc/systemd/system/updatedb.timer.d/updatedb.timer.conf
echo "OnCalendar=13:45" >> sdcardforarch/etc/systemd/system/updatedb.timer.d/updatedb.timer.conf
echo "OnBootSec=1800" >> sdcardforarch/etc/systemd/system/updatedb.timer.d/updatedb.timer.conf
echo ""
echo "Conf file to stop kernel messages:"
echo "/etc/sysctl.d/20-quiet-prink.conf"
mkdir sdcardforarch/etc/sysctl.d
echo "kernel.printk = 3 3 3 3" > sdcardforarch/etc/sysctl.d/20-quiet-prink.conf
echo ""
cat sdcardforarch/etc/sysctl.d/20-quiet-prink.conf
echo ""
echo ""
echo "Conf file to improove disk performance:"
echo "/etc/sysctl.d/30-rpi-optimizations.conf"
echo ""
cat <<EOF > sdcardforarch/etc/sysctl.d/30-rpi-optimizations.conf
vm.swappiness = 1
vm.min_free_kbytes = 32768
vm.vfs_cache_pressure = 500
vm.dirty_bytes = 8388608
vm.dirty_background_bytes = 8388608
vm.dirty_writeback_centisecs = 600
vm.dirty_expire_centisecs = 600
# In other words the seven optimizations do this, in their order, each in paranthesis:
#    (keep caches minimum and swap minimum), (keep a free memory of 32 MB), (keep a
#    minimum amount of file information in cache), (processes write after reaching
#    8MB in their memory) to a (cache of 8 MB in size), in which (old data is
#    written every 6 seconds) and (data is considered old after 6 seconds).
# Having a vm.swapiness bigger than 1 makes the kernel crash.
# Having a vm.min_free_kbytes smaller than 8192 makes the system crash. More given.
#
#Decreasing vfs_cache_pressure causes the kernel to prefer
#to retain dentry and inode caches. When vfs_cache_pressure=0, the kernel will
#never reclaim dentries and inodes due to memory pressure and this can easily
#lead to out-of-memory conditions. Increasing vfs_cache_pressure beyond 100
#causes the kernel to prefer to reclaim dentries and inodes.
#Increasing vfs_cache_pressure significantly beyond 100 may have negative
#performance impact. Reclaim code needs to take various locks to find freeable
#directory and inode objects. With vfs_cache_pressure=1000, it will look for
#ten times more freeable objects than there are.
#As Raspberry Pi has low memory, incresed vfs_cache_pressure a lot so less out of memory.
EOF
echo ""
echo ""
echo "Creating config.txt"; echo ""
cp sdcardforarch/boot/config.txt sdcardforarch/boot/configold.txt
cat <<EOF > sdcardforarch/boot/config.txt
#The other commented options are in config.txt.old
EOF
# Overclock. Keep over_voltage to 0 to keep warranty. Optional.
if [ $insaneoverclock -eq 1 ]; then
cat <<EOF >> sdcardforarch/boot/config.txt
# Keep over_voltage to 0 to keep warranty.
# Measure temp under load with /opt/vc/bin/vcgencmd measure_temp
# If temperature goes over 60 Celsius need to improove cooling
arm_freq=900
over_voltage=0
core_freq=450
sdram_freq=450
force_turbo=1
avoid_pwm_pll=1
EOF
fi
cat <<EOF >> sdcardforarch/boot/config.txt
#Rezolution 1280x1024 @ 60 Hz
hdmi_group=2
hdmi_mode=35
#Option hdmi_drive for DVI it's 1, for HDMI with sound (TV, adapter) it's 2
hdmi_drive=2
hdmi_force_edid_audio=1
hdmi_force_hotplug=1
gpu_mem=256
framebuffer_depth=24
# For camera and webm
start_file=start_x.elf
fixup_file=fixup_x.dat
# Bad usb cables, but working
avoid_warnings=1
avoid_warnings=2
max_usb_current=1
# Allow sound after kernel update
dtparam=audio=on
EOF
echo "Conf /etc/X11/xorg.conf.d/50-on-flags.conf for screen always on:"; echo ""
mkdir sdcardforarch/etc/X11
mkdir sdcardforarch/etc/X11/xorg.conf.d
cat <<EOF > sdcardforarch/etc/X11/xorg.conf.d/50-on-flags.conf
Section "ServerFlags"
    Option "BlankTime" "0"
    Option "StandbyTime" "0"
    Option "SuspendTime" "0"
    Option "OffTime" "0"
EndSection
EOF
cp sdcardforarch/boot/config.txt sdcardforarch/boot/confignew.txt
### When config.txt is lost, cp /boot/confignew.txt config.txt
sleep 2
sync
sleep 2
umount $bootpart
umount $rootpart
swapoff $swappart
rm -rf sdcardforarch
rm -rf archcoredbextract
# Keeping Arch image
sleep 2
sync
sleep 2
echo "Completed."
echo ""
end_time=$(date)
echo "Started at:"
echo ""
echo $start_time
echo ""
echo "Finished at:"
echo ""
echo $end_time
echo ""
echo "Password for root is root. Without the dot."
echo ""
echo "Exiting happy."
echo ""
sleep 2
sync
sleep 2
exit 0