UbuntuFreunde

Quellcode

#!/bin/sh
#
# 
# written by KLS 03-31-2007 
#
# This script mounts folders into ramfs to avoid harddisk access
#
# Tested on Ubuntu 6.10 - 2.6.20-rt3
#
# Revison PA2 03-31-2007
#

#-----------------------------------------------------------------------
# Check root
#-----------------------------------------------------------------------

checkroot () {
if [ "$UID" -ne 0  ]
 then
 echo "Must be root to run this script..."
 exit 0
 fi  
}

#-----------------------------------------------------------------------
# Check double run
#-----------------------------------------------------------------------

checkdouble () {

if [ "`mount | grep "tmpmnt" `" != "" ] ; then
echo "$0 already executed ...."
exit 0
fi

}

#-----------------------------------------------------------------------
# Setenv 
#-----------------------------------------------------------------------


umask 022

#-----------------------------------------------------------------------
# Put relevant /var directories into RAM
#-----------------------------------------------------------------------


vardirtoram () {

if [ ! -d /mnt/tmpmnt ] ; then
mkdir /mnt/tmpmnt
fi

for i in $@; do 

 if [ -f /var"$i".state ] ; then
  /bin/rm -rf /var"$i".state
 fi

 /bin/echo "Creating ramfs for /var/"$i":"
 /bin/mount -t ramfs ramfs /mnt/tmpmnt -o maxsize=256
 /bin/cp -rp /var/"$i"/* /mnt/tmpmnt/ 2>/dev/null
 /bin/mkdir -p /var"$i".state
 /bin/mount -o bind /var/"$i" /var"$i".state
 /bin/mount -o bind /mnt/tmpmnt /var/"$i"
 /bin/umount /mnt/tmpmnt
done
}

#-----------------------------------------------------------------------
# Stop unwanted hardisk accessing processes
#-----------------------------------------------------------------------

stopproc () {
swapoff -a
ps axco pid,command |grep xscreensaver | awk '{ print $1; }' | xargs kill -9 > /dev/null 2>&1
/etc/init.d/apmd stop > /dev/null 2>&1
/etc/init.d/networking stop > /dev/null 2>&1
/etc/init.d/cron stop > /dev/null 2>&1
/etc/init.d/klogd stop > /dev/null 2>&1
/etc/init.d/sysklogd stop > /dev/null 2>&1
/etc/init.d/acpid stop > /dev/null 2>&1
}

#-----------------------------------------------------------------------
# MAIN
#-----------------------------------------------------------------------

checkroot
checkdouble
stopproc



# Note1: /var/run and /var/lock are already mounted on tmpfs
# Note2: It makes sense to clean /var and other directories before putting them into RAM 
vardirtoram tmp spool mail log local opt

echo "done"

exit 0