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#!/bin/bash
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#!/bin/bash
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#
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#
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# Fix things during bootup - run very first
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# Fix things during bootup - run very first
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# Executed at the begining of /etc/rc.d/rc.sysinit
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# Executed at the begining of /etc/rc.d/rc.sysinit
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#
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#
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# Urs Beyerle
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# Urs Beyerle
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#
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#
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### definitions
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### definitions
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# dir of mounted /$MOUNTDIR/live
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# dir of mounted /$MOUNTDIR/live
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MOUNTDIR=livecd
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MOUNTDIR=livecd
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# source functions
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# source functions
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. /$MOUNTDIR/live/liblinuxlive
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. /$MOUNTDIR/live/liblinuxlive
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. /etc/init.d/functions
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. /etc/init.d/functions
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- 
 
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### get boot parameters
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### get boot parameters
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# root on NFS?
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# root on NFS?
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NFSROOT=$( cmdline_value nfsroot )
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NFSROOT=$( cmdline_value nfsroot )
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- 
 
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# kernel modules for blacklist?
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BLACKLIST=$( cmdline_value blacklist )
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# disable udev hotplug?
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NOHOTPLUG=$( cmdline_parameter nohotplug )
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### create /srv and /selinux
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### create /srv and /selinux
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mkdir -p /srv
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mkdir -p /srv
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mkdir -p /selinux
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mkdir -p /selinux
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- 
 
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### blacklist file
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[ -e /etc/hotplug/blacklist ]    && BLACKLIST_FILE=/etc/hotplug/blacklist
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[ -e /etc/modprobe.d/blacklist ] && BLACKLIST_FILE=/etc/modprobe.d/blacklist
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### put wireless kernel module on blacklist, if boot over NFS
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### put wireless kernel module on blacklist, if boot over NFS
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#   we don't need to load wireless modules, if we boot over network
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#   we don't need to load wireless modules, if we boot over network
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if [ $NFSROOT ]; then
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if [ $NFSROOT ]; then
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    [ -e /etc/hotplug/blacklist ] && BLACKLIST_FILE=/etc/hotplug/blacklist
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    [ -e /etc/modprobe.d/blacklist ] && BLACKLIST_FILE=/etc/modprobe.d/blacklist
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    echo "Disable probing for wireless modules on diskless client"
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    echo "Disable probing for wireless modules on diskless client"
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    cp -a ${BLACKLIST_FILE} ${BLACKLIST_FILE}.backup
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    cp -a ${BLACKLIST_FILE} ${BLACKLIST_FILE}.ori
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    echo >> ${BLACKLIST_FILE}
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    echo >> ${BLACKLIST_FILE}
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    echo "# Disable wireless modules on diskless client" >> ${BLACKLIST_FILE}
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    echo "# Disable wireless modules on diskless client" >> ${BLACKLIST_FILE}
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    # for SL4
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    # for SL4
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    if [ -e /etc/hotplug/blacklist ]; then
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    if [ -e /etc/hotplug/blacklist ]; then
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	find /lib/modules/$( uname -r )/kernel/drivers/net/wireless -type f | grep -v "_" | while read module; do
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	find /lib/modules/$( uname -r )/kernel/drivers/net/wireless -type f | grep -v "_" | while read module; do
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	    basename $module | cut -d"." -f 1
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	    basename $module | cut -d"." -f 1
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	done >> ${BLACKLIST_FILE}
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	done >> ${BLACKLIST_FILE}
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    fi
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    fi
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    # for SL5
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    # for SL5
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    if [ -e /etc/modprobe.d/blacklist ]; then
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    if [ -e /etc/modprobe.d/blacklist ]; then
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	find /lib/modules/$( uname -r )/kernel/drivers/net/wireless -type f | grep -v "_" | while read module; do
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	find /lib/modules/$( uname -r )/kernel/drivers/net/wireless -type f | grep -v "_" | while read module; do
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	    echo -n "blacklist "; basename $module | cut -d"." -f 1
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	    echo -n "blacklist "; basename $module | cut -d"." -f 1
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	done >> ${BLACKLIST_FILE}
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	done >> ${BLACKLIST_FILE}
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    fi
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    fi
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fi
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fi
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### blacklist kernel modules
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if [ -n $BLACKLIST ]; then
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    cp -a ${BLACKLIST_FILE} ${BLACKLIST_FILE}.ori
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    for module in `echo "$BLACKLIST" | tr ':' ' '`; do
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	echo $module >> ${BLACKLIST_FILE}
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    done
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fi
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### disable udev hotplug - may make the system unusable
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[ -e /lib/udev/udev_run_hotpluged ] && HOTPLUG_FILE=/lib/udev/udev_run_hotpluged   # SL5
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if [ $NOHOTPLUG ] && [ $HOTPLUG_FILE ]; then
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    mv ${HOTPLUG_FILE} ${HOTPLUG_FILE}.ori
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    touch ${HOTPLUG_FILE}
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    chmod 755 ${HOTPLUG_FILE}
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fi