#!/bin/sh # # Atomic Offline OS installer (AOOI) # install CentOS to a running system # Due to the network in 1and1, we cant do a normal ks install, we need to drop off the CD to the local disk # # probably want to store on sdb2, so sda can be wiped. Followup in %post to finish creating the RAID # initial tests caused problems with booting on a raid. Probably too large. # network or local VERSION="2.0.1" DISTVERSION="6.4" # CentOS version # Apparently debian doesnt support -i? #ARCH=`uname -i` # What ARCH are we on M_ARCH=`arch` if [ "$M_ARCH" == "x86_64" ]; then ARCH=x86_64 else ARCH=i386 fi function check_input { message=$1 validate=$2 default=$3 while [ $? -ne 1 ]; do echo -n "$message " read INPUTTEXT < /dev/tty if [ "$INPUTTEXT" == "" -a "$default" != "" ]; then INPUTTEXT=$default return 1 fi echo $INPUTTEXT | egrep -q "$validate" && return 1 echo "Invalid input" done } echo echo "Atomic Offline OS Installer (AOOI)" echo "by Scott R. Shinn " echo "Version $VERSION" echo echo "Credits: " echo "www.gnuker.com" echo "www.nefw.net" echo "www.orionhost.net" echo "www.protechone.com" echo "Robinet at 1and1.fr" echo "Igor at CloudLinux" echo echo "AOOI is designed to re-image a server with either CentOS or Cloudlinux." echo "This installer does not back up your data, if for " echo "any reason it fails you will need to reimage the system." echo echo "Hit enter if you accept this risk and wish to continue," echo "otherwise hit Ctrl-C to quit" read < /dev/tty echo echo echo "Turtle power." sleep 2 echo echo echo check_input "Would you like to re-image the system with CentOS $DISTVERSION or Cloudlinux $DISTVERSION (centos/cloudlinux) [Default: centos]" "centos|cloudlinux" "centos" INSTALL_DIST=$INPUTTEXT echo echo "Selected $INSTALL_DIST" echo if [ "$INSTALL_DIST" == "cloudlinux" ]; then MIRRORSITE="http://repo.cloudlinux.com/cloudlinux/" ISOS="CloudLinux-$DISTVERSION-$ARCH-CD1.iso CloudLinux-$DISTVERSION-$ARCH-CD2.iso" FIRSTISO="CloudLinux-$DISTVERSION-$ARCH-CD1.iso" else MIRRORSITE="http://mirrors.kernel.org/centos/" ISOS="CentOS-$DISTVERSION-$ARCH-minimal.iso" FIRSTISO="CentOS-$DISTVERSION-$ARCH-minimal.iso" fi ## OS checks # Detect if we're on debian if egrep -q "Debian|Ubuntu" /etc/issue; then DEBIAN=1 # Debian doesnt come with strings? if [ ! -f /usr/bin/strings ]; then apt-get -y --force-yes install binutils fi if [ $? -gt 0 ]; then echo " There appears to have been a problem with apt. Attempting to resolve..." sleep 2 apt-get update apt-get -y --force-yes install binutils fi else # Guess what? 1and1 can break centos too. if [ ! -f /usr/bin/strings ]; then yum -y install binutils fi fi # More debian fixes, uname -i returns unknown. if [ "$ARCH" == "unknown" ]; then ARCH=x86_64 fi # Detect if we're on SuSE if [ -f /etc/SuSE-release ]; then SUSE=1 fi LOCALSERVER=$1 # Pull the ISO from localhost ## Get network variables #if [ "$DEBIAN" == "1" ] ; then IPADDR=`ifconfig eth0 | sed 's/:/ /' | awk '/inet addr/ {print $3}'` NETMASK=`ifconfig eth0 | sed 's/:/ /g' | awk '/inet addr/ {print $7}'` GATEWAY=`route -n |grep UG | awk '{print $2}'` DNS=`grep nameserver /etc/resolv.conf |head -n 1 | awk '{print $2}'` #else # # load network settings into our config, and figure out our DNS server # if [ -f /etc/sysconfig/network-scripts/ifcfg-eth0 ]; then # . /etc/sysconfig/network-scripts/ifcfg-eth0 # fi #fi ## Figure out what bootloader we're using. DEVICES="hda hdb hdc hdd hde sda sdb sdc sdd sde" echo > /tmp/disk.out for i in $DEVICES; do dd if=/dev/$i bs=512 count=1 2>/dev/null |strings >> /tmp/disk.out done NOGRUBBY=0 if grep -q GRUB /tmp/disk.out ; then LOADER=GRUB # Check for grubby if [ ! -x /sbin/grubby ]; then echo "Error: /sbin/grubby not detected, This is probably debian. Trying an alternate method" NOGRUBBY=1 fi GRUB=`which grub` fi if grep -q LILO /tmp/disk.out ; then if [ -f /sbin/lilo ]; then LOADER=LILO else echo "Error: LILO was detected as the boot loader, but /sbin/lilo was not detected. This is most likely a customized distribution. Exiting..." exit 1 fi fi if [ "$LOADER" == "" ]; then echo "Error: Couldn't determine boot loader" exit 1 fi # Network Install function function netinstall { INSTALL=NETWORK if [ -d /boot ]; then cd /boot # grab the iso boot images wget --no-cache -O - $MIRRORSITE/$DISTVERSION/os/$ARCH/isolinux/vmlinuz > /boot/vmlinuz.atomic || exit 1 wget --no-cache -O - $MIRRORSITE/$DISTVERSION/os/$ARCH/isolinux/initrd.img > /boot/initrd.img.atomic || exit 1 # add them to the bootloader addkernel else echo "Error: Could not determine where to store boot image, exiting" exit 1 fi } function localinstall { INSTALL=LOCAL # if [ "$ARCH" == "x86_64" ]; then # else # ISOS="CentOS-$DISTVERSION-$ARCH-bin-1of7.iso" # FIRSTISO=$ISOS # fi # Do we have sfdisk? if [ ! -x /sbin/sfdisk ]; then echo "sfdisk not detected. Exiting" exit 1 fi # Are we at 1and1? if grep -q onlinehome /etc/yum.conf; then # echo "Detected broken 1and1 configuration " # mv /etc/yum.conf /etc/yum.conf.broken # cd /etc # wget -q http://3es.atomicrocketturtle.com/tests/config/yum.conf # yum clean all BOOTLOADER=1AND1 fi # Check for mkfs.vfat if [ ! -x /sbin/mkfs.vfat ]; then if [ "$DEBIAN" == "1" ]; then apt-get install dosfstools elif [ "$SUSE" == "1" ]; then echo "mkfs.vfat not detected. This appears to be a SUSE system" echo "Attempting to install dosfstools through yast, this can take a very long time" echo echo "Please be patient" echo echo "Hit any key to continue " read foo < /dev/tty yast -i dosfstools if [ ! -d /mnt ]; then mkdir /mnt fi else echo "mkfs.vfat not detected. Attempting to resolve with: yum -y install dosfstools" yum -y install dosfstools || exit 1 fi fi # disable swap, this gets tricky with multiple swap partitions echo -n "Transferring image to swap: " /sbin/swapoff -a # Yes. This is ugly. DEVS="sda sdb sdc sdd sde sdf hda hdb hdc hdd hde hdf" PARTS="1 2 3 4 5 6 7 8" count=0 # extract all the swap partitions for data in `grep swap /etc/fstab |awk -Fdev/ '{print $2}' |awk '{print $1}'`; do echo "$data" > /tmp/swap.out # Test device name against the array to split this up for sfdisk for i in $DEVS; do for y in $PARTS; do if grep -q $i$y /tmp/swap.out; then # we do this on all swap partitions, just to make sure we dont zap them on a raid SFSWAP="/dev/$i $y" SWAP="/dev/$i$y" # Make the fs vfat, and then set the disklabel # except 1and1 doesnt do vfat any more. # this is annoying, the first time we'll set this to ext3. Vfat the 2nd pass. if [ $count -lt 1 ]; then /sbin/mkfs.ext3 $SWAP count=`expr $count + 1` else /sbin/mkfs.vfat $SWAP > /dev/null 2>/dev/null if [ "$SUSE" == "1" ]; then /sbin/mkfs.ext3 $SWAP fi fi # Set the partition flag to vfat. Not that this helped protect the partition from anaconda. :P /sbin/sfdisk --force --change-id $SFSWAP 7 # If KSDEV isnt defined, assign it, otherwise skip it if [ ! $KSDEV ]; then KSDEV="$i$y" # We only need to mount the first swap partition we detect /bin/mount $SWAP /mnt/ echo fi fi done done done if [ "$SFSWAP" == "" ]; then echo "Error: could not parse the swap partition. Report the output of /etc/fstab to support@atomicorp.com" echo exit 1 fi cd /mnt echo # Create the ISO's to grab array for i in $ISOS; do DETECTED=0 if [ -f $i ]; then DETECTED=1 else # populate the array with what to get DOWNLOAD="$DOWNLOAD $i " fi done # Download ISO's if [ $DETECTED -eq 1 ]; then echo "CentOS-$DISTVERSION-$ARCH all ISOS detected" else echo -n "Getting CentOS ISO: " if [ "$LOCALSERVER" == "" ]; then for l in $DOWNLOAD; do wget $MIRRORSITE/$DISTVERSION/isos/$ARCH/$l done else # this is probably never going to work again wget http://localhost/CentOS-$DISTVERSION.ServerCD-$ARCH.iso fi echo "Done." fi # Look for the first ISO if [ ! -f $FIRSTISO ]; then echo "Error: Cannot find the CentOS server image" exit 1 fi # Grab the ISO kernel echo -n "Setting up installer kernel: " # mkdir 1 # /bin/mount -o loop $FIRSTISO 1/ # cp 1/isolinux/vmlinuz /boot/vmlinuz.atomic # cp 1/isolinux/initrd.img /boot/initrd.img.atomic wget --no-cache -O - $MIRRORSITE/$DISTVERSION/os/$ARCH/isolinux/vmlinuz > /boot/vmlinuz.atomic wget --no-cache -O - $MIRRORSITE/$DISTVERSION/os/$ARCH/isolinux/initrd.img > /boot/initrd.img.atomic echo "Done" # do the ks.cfg # drop this off in / instead of /boot on a 1and1 system cd /mnt if [ "$LOADER" == "LILO" ]; then # 1and1 detection isnt so hot on older rh9/fc2 systems. Especially if they've been ASL'd # Added to get this on a second run BOOTLOADER=1AND1 if [ "$BOOTLOADER" == "1AND1" ]; then # 1and1 x86_64 config wget http://www.atomicorp.com/installers/AOOI/ks-1and1-$ARCH.cfg >/dev/null 2>&1 echo "ks path is hd:$KSDEV:ks-1and1$ARCH.cfg" # write config to lilo cat >> /etc/lilo.conf << EOF image=/boot/vmlinuz.atomic label=atomic initrd=/boot/initrd.img.atomic append="ks=hd:$KSDEV:ks-1and1-$ARCH.cfg console=ttyS0,57600n8 ksdevice=eth0" EOF else #wget echo "This part of the installer, for lilo using non-1and1 systems isnt done yet" echo "Use a net install" exit 1 fi # write to lilo if [ -f /sbin/lilo ]; then /sbin/lilo else echo "Error: lilo was detected as the bootloader, but /sbin/lilo was not detected." exit 1 fi # set the temp boot echo "Setting the next reboot to use the ISO image" /sbin/lilo -R atomic else # We're using grub, Add kernel to boot addkernel fi } # this is easier on a net install, no vars needed function addkernel { if [ "$LOADER" == "GRUB" ]; then # were using grub echo "Detected Grub, adding atomic entry" # if we're in network mode if [ "$INSTALL" == "NETWORK" ]; then if [ $NOGRUBBY -gt 0 ]; then # an expiremental fix for debian since they dont have grubby # we hose their grub config until a better way can be determined. cat << EOF > /boot/grub/menu.lst default=0 timeout=5 title Atomic root (hd0,0) kernel /boot/vmlinuz.atomic ks=http://www.atomicorp.com/installers/AOOI/ks-$ARCH.cfg ip=$IPADDR netmask=$NETMASK gateway=$GATEWAY dns=$DNS ksdevice=eth0 initrd /boot/initrd.img.atomic EOF else /sbin/grubby --add-kernel=/boot/vmlinuz.atomic --initrd /boot/initrd.img.atomic --title "Atomic" \ --copy-default --args="ks=http://www.atomicorp.com/installers/AOOI/ks-$ARCH.cfg ip=$IPADDR netmask=$NETMASK gateway=$GATEWAY dns=$DNS" fi else # if we're in local mode cd /mnt wget http://www.atomicorp.com/installers/AOOI/ks-1and1-$ARCH.cfg >/dev/null 2>&1 /sbin/grubby --add-kernel=/boot/vmlinuz.atomic --initrd /boot/initrd.img.atomic --title "Atomic" \ --copy-default --args="ks=hd:$KSDEV:ks-1and1-$ARCH.cfg ip=$IPADDR netmask=$NETMASK gateway=$GATEWAY dns=$DNS" fi # Boot only once echo "Setting grub to boot the atomic entry *once*" /sbin/grub --batch <> /etc/lilo.conf << EOF image=/boot/vmlinuz.atomic label=atomic initrd=/boot/initrd.img.atomic append="ks=http://www.atomicorp.com/installers/AOOI/ks-$ARCH.cfg ip=$IPADDR netmask=$NETMASK gateway=$GATEWAY dns=$DNS console=tty0 console=tty1 console=ttyS0,57600n8" EOF #Set lilo to boot it once echo "Setting lilo to boot the atomic entry *once*" /sbin/lilo /sbin/lilo -R atomic fi } function check_input { message=$1 validate=$2 default=$3 while [ $? -ne 1 ]; do echo -n "$message " read INPUTTEXT < /dev/tty if [ "$INPUTTEXT" == "" -a "$default" != "" ]; then INPUTTEXT=$default return 1 fi echo $INPUTTEXT | egrep -q "$validate" && return 1 echo "Invalid input, expecting ($validate)" echo done } # Logic for Network or Local install echo echo "Do you want to perform an installation over the network, or from a locally" echo "cached ISO. Local installations may be required if for some reason the" echo "installation kernel cannot work correctly with your network card. For most" echo "installations, choose network." echo check_input "Network or Local installation (network/local) [Default: network] ?" "network|local" "network" if [ "$INPUTTEXT" == "network" ]; then netinstall else localinstall fi echo echo echo "Done" echo echo echo "The installer has been configured, back up your data including your /etc/psa/psa.key, and reboot the system." echo "Root password has been temporarily set to: atomic555" echo