Subversion Repositories livecd

#!/bin/bash
#
# Fix things during bootup - run last 
#
# Urs Beyerle, PSI
#

### -----------------------------------------------------------
### definitions
### -----------------------------------------------------------

# dir of mounted live system: /$MOUNTDIR/live
MOUNTDIR=livecd

# source functions
. /$MOUNTDIR/live/liblinuxlive
. /etc/init.d/functions


### -----------------------------------------------------------
### Get boot parameters
### -----------------------------------------------------------

# root on NFS?
NFSROOT=$( cmdline_value nfsroot )

# NFS Server
NFSSERVER=$( echo $NFSROOT | cut -d":" -f1 )

# no local user?
NOLOCAL=$( cmdline_parameter nolocal )

# no root user?
NOROOT=$( cmdline_parameter noroot )

# no localadmin?
NOADMIN=$( cmdline_parameter noadmin )
LocalAdminGroup=localadmin

# set password
PASSWD=$( cmdline_value passwd )
[ ! $PASSWD ] && PASSWD=$( cmdline_value pw )

# no password = empty password ?
NOPASSWD=$( cmdline_parameter nopasswd )

# keyboard layout (kb= or keyboard=)
KEYBOARD=$( cmdline_value keyboard )
KB=$( cmdline_value kb )

# PSI setup?
PSI=$( cmdline_parameter psi )

# cups server
CUPS=$( cmdline_value cups )

# failsafe X server
SIMPLEX=$( cmdline_parameter simplex )

# NVIDIA driver
NVIDIA=$( cmdline_parameter nvidia )
if [ "$XDRIVER" = "nvidia" ]; then
    NVIDIA=nvidia
fi

# force NO NVIDIA driver - will overwite NVIDIA option
NONVIDIA=$( cmdline_parameter nonvidia )

# VESA driver
VESA=$( cmdline_parameter vesa )

# force to use a video driver ?
XDRIVER=$( cmdline_value xdriver )

# Xserver configurations
HSYNC=$( cmdline_value hsync )
VSYNC=$( cmdline_value vsync )
SCREEN=$( cmdline_value screen )

# no SWAP
NOSWAP=$( cmdline_parameter noswap )

# should we auto mount all found devices?
AUTOMOUNT=$( cmdline_parameter automount )
if [ $AUTOMOUNT ]; then
    MOUNTOPT="auto,users"
else
    MOUNTOPT="noauto,users,ro"
fi

# folder where we find data which was previously stored
# (normally on a usbstick, but can be partition)
if [ $PSI ]; then
    SAVEFOLDER=PSI_LIVECD
else
    SAVEFOLDER=SL_LIVECD
fi

# local home partition?
# (e.g. /dev/hda1, /dev/hda1:/my_home)
HOMELOCAL=$( cmdline_value home )

# fast booting ?
FASTBOOT=$( cmdline_parameter fastboot )

# start afs?
AFS=$( cmdline_parameter afs )

# or force no afs
[ $( cmdline_parameter noafs ) ] && AFS=""

# turn of sound (volume=0)
NOSOUND=$( cmdline_parameter nosound )

# local user name?
LOCALUSER=$( cmdline_value user )

# hostname?
HOSTNAME=$( cmdline_value hostname )

# do we have defined a configuration directory?
CONFIG=$( cmdline_value config )

# do not udpate fstab?
NOFSTAB=$( cmdline_parameter nofstab )

# kde/gnome as desktop
GNOME=$( cmdline_parameter gnome )
KDE=$( cmdline_parameter kde )


### -----------------------------------------------------------
### Improved hardware detection
### -----------------------------------------------------------

### Improved graphic card detection?

if [ ! $SIMPLEX ]; then

    ### Intel Mobile 945GM
    lspci | grep -q VGA.*Intel.*Mobile.*945GM
    if [ "$?" = "0" ]; then
        I945GM=i945gm
        ## not yet supported by i810 driver
        ## [ $XDRIVER ] || XDRIVER=i810
        I915RESOLUTION=on
    fi
    ### Intel Mobile 915GM
    lspci | grep -q VGA.*Intel.*Mobile.*915GM
    if [ "$?" = "0" ]; then
        I915GM=i915gm
        [ $XDRIVER ] || XDRIVER=i810
        I855RESOLUTION=on
    fi

    ### Intel Mobile 855GM
    lspci | grep -q VGA.*Intel.*855GM
    if [ "$?" = "0" ]; then
        I855GM=i855gm
        I855RESOLUTION=on
    fi
fi


### -----------------------------------------------------------
### Main
### -----------------------------------------------------------

### try load fuse kernel module
modprobe fuse 2>/dev/null

### activate SWAP
# delete all swap lines in fstab
 sed -i -e "/ swap /d" /etc/fstab
# search for swap partition
fdisk -l > /var/log/fdisk
swap_part=$( fdisk -l 2>/dev/null | grep -i "Linux swap" \
            | grep "^/dev/" | cut -f 1 -d " " | head -1 )
# add to /etc/fstab and activate SWAP
if [ $swap_part ] && [ ! $NOSWAP ]; then
    echo "$swap_part               swap                    swap    defaults 0 0" >>/etc/fstab
    # activate SWAP
    swapoff -a
    swapon -a -e
fi

### MAC Address of eth0
MAC_ETH0=$( ifconfig | grep eth0 | awk '{print $5}' )

### Get CONFIG_FOLDER for this machine from NFS Server (if existing) 
#   and copy it to /$MOUNTDIR
if [ $NFSSERVER ] && [ $CONFIG ]; then
    mkdir -p /mnt/config
    echo "Search for configuration files on the server ..."
    /etc/init.d/portmap start >/dev/null
    mount -t nfs $NFSSERVER:$CONFIG /mnt/config 2>/dev/null
    if [ "$?" != "0" ]; then
        echo "Could not mount $NFSSERVER:$CONFIG."
    else
        if [ -d /mnt/config/$MAC_ETH0 ]; then
            CONFIG_FOLDER=/$MOUNTDIR/config
            mkdir -p $CONFIG_FOLDER
            cp -a /mnt/config/$MAC_ETH0/* /$CONFIG_FOLDER/ 2>/dev/null
            if [ "$?" != "0" ]; then
                echo "Could not get $NFSSERVER:$CONFIG/$MAC_ETH0"
                CONFIG_FOLDER=""
            else
                echo "Found configuration files on the server." 
            fi      
        fi
        umount /mnt/config
    fi
    /etc/init.d/portmap stop >/dev/null
fi

### search for partitions and update fstab 
### and look for $SAVEFOLDER (previously stored data)
if [ ! $FASTBOOT ] && [ ! $NOFSTAB ]; then
    echo "Update /etc/fstab ..."
    # disable kernel messages during mount/unmount
    echo 0 > /proc/sys/kernel/printk
    DEVICES=$( list_partition_devices )
    for DEVICE in $DEVICES; do
        # try to mount the device and unmount it. 
        # If OK, we can add it to fstab
        DEV=$( echo $DEVICE | cut -d"/" -f 3 )
        if [ $DEV ]; then
            mkdir -p /mnt/$DEV
            mount $DEVICE /mnt/$DEV >/dev/null 2>&1
            # search for $SAVEFOLDER
            if [ -d /mnt/$DEV/$SAVEFOLDER ]; then
                FOUND_RESTORE_DEV=/dev/$DEV
                echo "Found folder '$SAVEFOLDER' on $FOUND_RESTORE_DEV"
            fi
            # unmount again
            umount /mnt/$DEV >/dev/null 2>&1
            # if sucsessful add to fstab, if not already done
            if [ "$?" = "0" ]; then
                grep -q "^$DEVICE " /etc/fstab
                if [ "$?" != "0" ]; then
                    echo -e "$DEVICE \t /mnt/$DEV \t auto \t $MOUNTOPT,suid,dev,exec 0 0" >> /etc/fstab
                fi
            else
                rmdir /mnt/$DEV 2>/dev/null
            fi
        fi
    done
    # enable kernel messages again
    echo 6 > /proc/sys/kernel/printk
fi

### if $SAVEFOLDER found, set $CONFIG_FOLDER and mount $FOUND_RESTORE_MNT 
if [ $FOUND_RESTORE_DEV ]; then
    FOUND_RESTORE_MNT=$( grep "^$FOUND_RESTORE_DEV " /etc/fstab | awk '{ print $2 }' )
    CONFIG_FOLDER=$FOUND_RESTORE_MNT/$SAVEFOLDER
    echo "Will restore data from $CONFIG_FOLDER"
    mount $FOUND_RESTORE_MNT
fi

### source the file "config", if found in $CONFIG_FOLDER
if [ -f $CONFIG_FOLDER/config ]; then
    . $CONFIG_FOLDER/config
fi

### do we have a shadow/passwd file in $FOUND_FOULDER 
if [ -r $CONFIG_FOLDER/passwd.tar.gz ] && [ -r $CONFIG_FOLDER/shadow.tar.gz ]; then
    # we do not need a password for local user and root
    NOLOCAL=nolocal
    NOROOT=noroot
fi

### set local user name and default hostname
if [ $PSI ]; then
    [ $LOCALUSER ] || LOCALUSER=l_psi
    DEFAULT_HOSTNAME=psi
else
    [ $LOCALUSER ] || LOCALUSER=sluser
    DEFAULT_HOSTNAME=slinux
fi

### start 855resolution?
[ $I855RESOLUTION ] && /etc/init.d/855resolution start 2>/dev/null

### start 915resolution?
[ $I915RESOLUTION ] && /etc/init.d/915resolution start 2>/dev/null

### configure Xserver

### check for xorg.conf in CONFIG_FOLDER
if [ -r $CONFIG_FOLDER/xorg.conf ]; then
    cp -af $CONFIG_FOLDER/xorg.conf /etc/X11/xorg.conf
    if [ "$?" = "0" ]; then
        echo "Saved xorg.conf file found."
        XDRIVER=""
        HAVE_XORG_CONF="yes"
    fi
fi

### use vesa driver?
if [ $VESA ]; then
    echo "Force to use VESA driver!"
    video_driver="--set-driver=vesa"
else
    video_driver=""
fi

### force an other video driver?
if [ $XDRIVER ]; then
    echo "Force to use $XDRIVER driver!"
    video_driver="--set-driver=$XDRIVER"
fi

### run system-config-display
if [ -x /usr/bin/system-config-display ]; then
    echo "Configure Xserver:"
    if [ ! $HAVE_XORG_CONF ]; then
        if [ ! $SIMPLEX ]; then
            # default values
            [ ! $HSYNC ] && HSYNC="30.0-80.0"
            [ ! $VSYNC ] && VSYNC="50.0-90.0"
            [ ! $SCREEN ] && SCREEN="1280x1024"
    
            system-config-display \
                --reconfig \
                -v \
                --set-resolution=$SCREEN \
                --set-hsync=$HSYNC \
                --set-vsync=$VSYNC \
                $video_driver | grep Trying
        else
            echo "Use simple Xserver configuration."
            system-config-display --noui --reconfig -v | grep Trying
        fi
    fi
fi

### enable NVIDIA driver (needs nvidia, nvidia-libs rpms)
if [ $NVIDIA ] && [ ! $NONVIDIA ]; then
    # serach for Nvidia Video Card
    /sbin/lspci | grep VGA | grep -i -q nvidia
    if [ "$?" = "0" ]; then
        # lib or lib64 ?
        LIB=lib
        [ $( arch ) = "x86_64" ] && LIB=lib64
        # find out installed Nvidia driver version
        libglx=$( ls /usr/X11R6/$LIB/modules/extensions/libglx.so.1.* | head -n 1 )
        nvidia_version=${libglx##*.so.1.}
        # enable Nvidia driver (normally done by nvidia-enable - does not work on LiveCD)
        echo -n "NVIDIA graphic card found. Enable the nvidia driver ${nvidia_version} ... " 
        NVLOG=/var/log/nvidia.log
        # assuming that the kernel modules are already build 
        # link to Nvidia libs
        ln -sf ../../usr/X11R6/$LIB/libGL.so.1.${nvidia_version} /usr/$LIB/libGL.so
        ln -sf libGL.so.1.${nvidia_version} /usr/X11R6/$LIB/libGL.so
        mv /usr/X11R6/$LIB/modules/extensions/libGLcore.a /usr/X11R6/$LIB/modules/extensions/xxx.libGLcore.a.saved_by_nvidia
        mv /usr/X11R6/$LIB/modules/extensions/libglx.a /usr/X11R6/$LIB/modules/extensions/xxx.libglx.a.saved_by_nvidia
        ln -sf libglx.so.1.${nvidia_version} /usr/X11R6/$LIB/modules/extensions/libglx.so
        # reconfigure X
        /usr/sbin/nvidia-xconfig >> $NVLOG 2>&1
        if [ $PSI ]; then
            echo 'NVIDIA=on' >> /etc/sysconfig/cfengine
        fi
        echo "ok."
    fi
fi

### set special video driver options for Intel Mobile

#   (external VGA output: Clone)
if [ $I915GM ] || [ $I855GM ]; then
    sed -e "/Section[ \t]*\"Device\"/,/EndSection/{
     /^[ \t]*Option[ \t]*\"MonitorLayout\"/d
     /^[ \t]*Option[ \t]*\"Clone/d
     /EndSection/i\\
        Option      \"MonitorLayout\" \"CRT,LFP\"\\
        Option      \"Clone\" \"1\"\\
        Option      \"CloneRefresh\" \"60\"
     }" -i /etc/X11/xorg.conf
fi

# Set BoardName for Intel 915GM
if [ $I915GM ]; then
    sed -i 's/BoardName.*VESA driver.*/BoardName   "Intel 915"/' /etc/X11/xorg.conf
fi


### parameter KB = KEYBOARD
KEYBOARD=$KB

### ask user for keyboard layout if no keyboard given
if [ -x /usr/bin/system-config-keyboard ]; then
    if [ ! $KEYBOARD ]; then
        MORE_LAYOUTS="more..."
        keytables="U.S...........(us) \
                   Swiss-German..(sg-latin1) \
                   Swiss-French..(fr_CH-latin1) \
                   German........(de-latin1) \
                   Japanese......(jp106) \
                   $MORE_LAYOUTS"
        PS3="-> "
        echo
        echo "Please choose keyboard layout (type 1-6):"
        select KEYBOARD in $keytables;
          do
             case $KEYBOARD in
                *)
                # extract keyboard layout string from $KEYBOARD
                KEYBOARD=${KEYBOARD##*(}
                KEYBOARD=${KEYBOARD%%)}
                break
                ;;
             esac
          done
    fi
fi

### set keyboard
if [ -x /usr/bin/system-config-keyboard ]; then
    if [ "$KEYBOARD" = "$MORE_LAYOUTS" ]; then
        system-config-keyboard --text
    else
        echo -n "Set keyboard to '$KEYBOARD', please wait ... "
        system-config-keyboard --noui $KEYBOARD >/dev/null 2>&1
        echo "done."
    fi
    echo
fi

### update AFS users and SEPP links (only for PSI)
if [ $PSI ] && [ $AFS ]; then
    echo "Update AFS users and SEPP links..."
    [ -x /afs/psi.ch/sys/common/update_user.pl ] && /afs/psi.ch/sys/common/update_user.pl >/dev/null 2>&1 &
    [ -x /afs/psi.ch/sys/common/update_sepp.pl ] && /afs/psi.ch/sys/common/update_sepp.pl >/dev/null 2>&1 &
    echo
fi

### create local user, if "nolocal" is not set 
if [ ! $NOLOCAL ]; then

    user=$LOCALUSER
    # execute useradd twice, to make it work (don't know why)
    if [ $PSI ] && [ ! $NOADMIN ]; then
        userdel -r $user 2>/dev/null
        useradd -G $LocalAdminGroup $user 2>/dev/null
        userdel -r $user 2>/dev/null
        useradd -G $LocalAdminGroup $user
    else
        userdel -r $user 2>/dev/null
        useradd $user 2>/dev/null
        userdel -r $user 2>/dev/null
        useradd $user
    fi

    # only for PSI: change users's group to GID=UID+50000
    if [ $PSI ]; then
        uid=$( id -u $user )
        old_gid=$( id -g $user )
        new_gid=$(( $old_gid + 50000 ))
        # fix /etc/group
        sed -i "s/${user}:x:${old_gid}:/${user}:x:${new_gid}:/" /etc/group
        # fix /etc/passwd
        sed -i "s/${user}:x:${uid}:${old_gid}:/${user}:x:${uid}:${new_gid}:/" /etc/passwd
        # fix perm of /home/${user)
        chgrp -R $user /home/${user}
    fi
fi

### copy special files for PSI user l_psi
if [ $PSI ] && [ ! $NOLOCAL ]; then
    find /usr/share/${LOCALUSER}/ -maxdepth 1 -mindepth 1 2>/dev/null | \
    while read dir; do 
        cp -a $dir /home/${LOCALUSER}/
    done
    # set owner
    chown -R ${LOCALUSER}.${LOCALUSER} /home/${LOCALUSER}
fi

### set password for root and local user
if [ ! $NOPASSWD ]; then
    if [ ! $NOROOT ] || [ ! $NOLOCAL ]; then
        echo -n "Set password for "
        if [ ! $NOROOT ]; then
            echo -n "'root' "
        fi
        if [ ! $NOROOT ] && [ ! $NOLOCAL ]; then
            echo -n "and "
        fi
        if [ ! $NOLOCAL ]; then
            echo -n "local user '$user' "
        fi
        echo

        if [ ! $NOLOCAL ]; then
            echo "Login as local user '$user' with this password."
            echo
        fi

        # set password, if not yet given by $PASSWD
        until [ $PASSWD ]; do
            echo -n "Password: "
            read -s PASSWD
            echo
        done
        if [ ! $NOROOT ]; then
            echo $PASSWD | passwd --stdin root >/dev/null
        fi
        if [ ! $NOLOCAL ]; then
            echo $PASSWD | passwd --stdin $user >/dev/null
        fi
        echo
    fi

else
    # set root and $LOCALUSER to empty password
    sed -i "s|^root:.*|root::12345:0:99999:1:::|" /etc/shadow
    sed -i "s|^$LOCALUSER:.*|$LOCALUSER::12345:0:99999:1:::|" /etc/shadow
fi

### try to get hostname from DNS, if not yet defined
if [ ! $HOSTNAME ]; then
    echo "Try to get hostname from DNS ..."
    IP=$( /sbin/ip add show dev eth0 2>/dev/null | grep "inet " | cut -d" " -f6 | sed 's|/.*||' )
    if [ "$IP" = "" ]; then
        IP=$( /sbin/ip add show dev eth1 2>/dev/null | grep "inet " | cut -d" " -f6 | sed 's|/.*||' )
    fi
    if [ "$IP" != "" ]; then
        host -W 1 $IP >/dev/null 2>&1
        if [ "$?" = "0" ]; then
            HOSTNAME=$( host -W 1 $IP | cut -d" " -f 5 | cut -d"." -f 1 )
            if [ "$HOSTNAME" = "3(NXDOMAIN)" ]; then
                HOSTNAME=$DEFAULT_HOSTNAME
            fi  
            if [ "$HOSTNAME" = "no" ]; then
                HOSTNAME=$DEFAULT_HOSTNAME
            fi  
        fi
    fi
fi

### define default hostname, if $HOSTNAME still not yet set
if [ ! $HOSTNAME ]; then
    HOSTNAME=$DEFAULT_HOSTNAME
fi

### set hostname
export HOSTNAME=$HOSTNAME
hostname $HOSTNAME
sed -i "s/HOSTNAME=.*/HOSTNAME=${HOSTNAME}/" /etc/sysconfig/network
if [ $PSI ]; then
    sed -i "s/hostname=.*/hostname=${HOSTNAME}.psi.ch/" /etc/ssmtp/ssmtp.conf
    sed -i "s/HOSTNAME=.*/HOSTNAME=${HOSTNAME}/" /etc/sysconfig/cfengine
fi
for iface in eth0 eth1 eth2 eth3; do
    if [ -e /etc/sysconfig/network-scripts/ifcfg-${iface} ]; then
        echo "DHCP_HOSTNAME=${HOSTNAME}" >> /etc/sysconfig/network-scripts/ifcfg-${iface}
    fi
done

echo "Hostname set to: $HOSTNAME"
echo

### set cups server
if [ $CUPS ]; then
    sed -i "s|.*ServerName .*|ServerName  $CUPS|" /etc/cups/client.conf
fi

### some magic: just access this file in order that it can be sourced later
ls -lag /etc/X11/xinit/xinitrc-common >/dev/null 2>&1
sleep 1

### set keyboard for rdesktop
if [ -e /etc/X11/xorg.conf ]; then
    grep -q de_CH /etc/X11/xorg.conf && RDESKTOP_OPT="-k de-ch"
    grep -q fr_CH /etc/X11/xorg.conf && RDESKTOP_OPT="-k fr-ch"
    grep -q jp106 /etc/X11/xorg.conf && RDESKTOP_OPT="-k ja"
fi

if [ "$RDESKTOP_OPT" ]; then
    echo "alias rdesktop='rdesktop $RDESKTOP_OPT'" > /etc/profile.d/rdesktop.sh
    echo "export RDESKTOP_OPT='$RDESKTOP_OPT'" >> /etc/profile.d/rdesktop.sh
    chmod 755 /etc/profile.d/rdesktop.sh
fi

### run setup script, if found in $CONFIG_FOLDER on $FOUND_RESTORE_MNT
if [ -r $CONFIG_FOLDER/setup ]; then
    CONFIG_FOLDER=$CONFIG_FOLDER bash $CONFIG_FOLDER/setup
fi

### umount $FOUND_RESTORE_MNT
if [ $FOUND_RESTORE_MNT ]; then
    echo "Unmount $FOUND_RESTORE_MNT"
    umount $FOUND_RESTORE_MNT 2>/dev/null
    sleep 3
fi

### local home partition?
if [ $HOMELOCAL ]; then
    mv /home /home.old
    mkdir -p /mnt/home_par
    # which partition? which folder?
    HOMEPAR=$( echo $HOMELOCAL | cut -d":" -f1 )
    HOMEDIR=$( echo $HOMELOCAL | grep ":" | cut -d":" -f2 )
    umount $HOMEPAR 2>/dev/null
    # mount it with option noatime, healthy for USB flash drives
    mount -o noatime -rw $HOMEPAR /mnt/home_par 2>/dev/null
    if [ "$?" != "0" ]; then
        echo "ERROR: Could not mount read/write $HOMEPAR"
        umount $HOMEPAR >/dev/null 2&>1
        mv /home.old /home
    else
        echo "$HOMEPAR mounted on /mnt/home_par"
        # link to new home
        ln -s /mnt/home_par/$HOMEDIR /home
        if [ ! -d /mnt/home_par/$HOMEDIR ]; then
            echo "$HOMELOCAL not found on $HOMEPAR"
            echo mkdir -p /mnt/home_par/$HOMEDIR
            if [ "$?" != "0" ]; then
                echo "ERROR: Could not create $HOMELOCAL on $HOMEPAR"
                umount $HOMEPAR >/dev/null 2&>1
                rm -f /home
                mv /home.old /home
            else
                echo "Folder $HOMEDIR created on $HOMEPAR"
            fi
        fi
        if [ -d /mnt/home_par/$HOMEDIR ]; then
            echo "/home is linked to /mnt/home_par${HOMEDIR}"
            # copy files from /home.old to /home, which are not yet there
            /bin/cp -a -i --reply=no /home.old/* /home/ 
            rm -rf /home.old
        fi
    fi
    sleep 2
fi

### mount all if AUTOMOUNT set
if [ $AUTOMOUNT ]; then
    mount -a
fi

### unload/load sound module for snd-card-X (timing problem?)
rpm -q alsa-lib | grep el5 >/dev/null
if [ "$?" = "0" ]; then
    sound_modules=$( grep snd-card- /etc/modprobe.conf | awk ' $1 ~ /alias/ { print $3 }' | tr - _ )
    for module in $sound_modules; do
        lsmod | awk '{ print $1 }' | grep $module >/dev/null 2>&1
        if [ "$?" = "0" ]; then
            rmmod $module    >/dev/null 2>&1
            sleep 2
            modprobe $module >/dev/null 2>&1
        fi
    done
fi

### unmute all mixers and set volumes
if [ -x /usr/bin/set-volume ]; then 
    if [ $NOSOUND ]; then
        /usr/bin/set-volume 0 > /var/log/set-volume.log 2>&1 &
    else
        /usr/bin/set-volume 60 > /var/log/set-volume.log 2>&1 &
    fi
fi

### set kde or gnome as desktop
if [ $KDE ]; then
    sed -i "/^DESKTOP=.*/d" /etc/sysconfig/desktop 2&>/dev/null
    echo "DESKTOP=KDE" >> /etc/sysconfig/desktop
fi
if [ $GNOME ]; then
    sed -i "/^DESKTOP=.*/d" /etc/sysconfig/desktop 2&>/dev/null
    echo "DESKTOP=GNOME" >> /etc/sysconfig/desktop
fi